chore: v3 api post survey

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: Dhruwang <dhruwangjariwala18@gmail.com>

.env.example

@@ -76,12 +76,10 @@ HUB_DATABASE_URL=postgresql://postgres:postgres@postgres:5432/hub?sslmode=disabl
 # EMBEDDING_MODEL=gemini-embedding-001
 # EMBEDDING_PROVIDER_API_KEY=
 
-###########################
-#  CUBE ANALYTICS (XM V5) #
-###########################
-# XM Suite v5 analysis features require Cube.js. The optional xm dev profile exposes Cube on port 4000.
-# Uncomment COMPOSE_PROFILES=xm to run the optional Cube analytics service.
-# COMPOSE_PROFILES=xm
+####################
+#  CUBE ANALYTICS  #
+####################
+# Cube semantic-layer API. Required. The bundled Docker stack exposes Cube on port 4000.
 CUBEJS_API_URL=http://localhost:4000
 # Generate with: openssl rand -hex 32. `pnpm dev:setup` will create/preserve this automatically.
 CUBEJS_API_SECRET=

apps/web/app/(auth)/auth/account-deletion/sso/complete/page.tsx

@@ -1,10 +0,0 @@
-import { redirect } from "next/navigation";
-import { completeAccountDeletionSsoIdentityConfirmationAndGetRedirectPath } from "./lib/account-deletion-sso-complete";
-
-export default async function AccountDeletionSsoConfirmationCompletePage({
-  searchParams,
-}: {
-  searchParams: Promise<{ intent?: string | string[] }>;
-}) {
-  redirect(await completeAccountDeletionSsoIdentityConfirmationAndGetRedirectPath(await searchParams));
-}

apps/web/app/(auth)/auth/account-deletion/sso/complete/route.ts

@@ -0,0 +1,20 @@
+import { type NextRequest, NextResponse } from "next/server";
+import { completeAccountDeletionSsoIdentityConfirmationAndGetRedirectPath } from "./lib/account-deletion-sso-complete";
+
+const getIntentSearchParam = (request: NextRequest): string | string[] | undefined => {
+  const intentValues = request.nextUrl.searchParams.getAll("intent");
+
+  if (intentValues.length === 0) {
+    return undefined;
+  }
+
+  return intentValues.length === 1 ? intentValues[0] : intentValues;
+};
+
+export const GET = async (request: NextRequest) => {
+  const redirectPath = await completeAccountDeletionSsoIdentityConfirmationAndGetRedirectPath({
+    intent: getIntentSearchParam(request),
+  });
+
+  return NextResponse.redirect(new URL(redirectPath, request.url));
+};

apps/web/app/api/v1/client/[workspaceId]/storage/route.ts

@@ -12,7 +12,7 @@ import { applyRateLimit } from "@/modules/core/rate-limit/helpers";
 import { rateLimitConfigs } from "@/modules/core/rate-limit/rate-limit-configs";
 import { getBiggerUploadFileSizePermission } from "@/modules/ee/license-check/lib/utils";
 import { getSignedUrlForUpload } from "@/modules/storage/service";
-import { getErrorResponseFromStorageError } from "@/modules/storage/utils";
+import { getErrorResponseFromStorageError, validateSurveyAllowsFileUpload } from "@/modules/storage/utils";
 
 export const OPTIONS = async (): Promise<Response> => {
   return responses.successResponse(
@@ -107,6 +107,23 @@ export const POST = withV1ApiWrapper({
       };
     }
 
+    const fileUploadPermission = validateSurveyAllowsFileUpload({
+      fileName,
+      blocks: survey.blocks,
+      questions: survey.questions,
+    });
+
+    if (!fileUploadPermission.ok) {
+      return {
+        response: responses.badRequestResponse(
+          fileUploadPermission.reason === "no_file_upload_question"
+            ? "Survey does not allow file uploads"
+            : "File extension is not allowed for this survey",
+          undefined
+        ),
+      };
+    }
+
     const isBiggerFileUploadAllowed = await getBiggerUploadFileSizePermission(organization.id);
     const maxFileUploadSize = isBiggerFileUploadAllowed
       ? MAX_FILE_UPLOAD_SIZES.big

apps/web/app/api/v3/lib/api-wrapper.test.ts

@@ -135,7 +135,7 @@ describe("withV3ApiWrapper", () => {
       apiKeyId: "key_1",
       organizationId: "org_1",
       organizationAccess: { accessControl: { read: true, write: true } },
-      environmentPermissions: [],
+      workspacePermissions: [],
     });
 
     const wrapped = withV3ApiWrapper({

apps/web/app/api/v3/lib/auth.test.ts

@@ -3,7 +3,7 @@ import { beforeEach, describe, expect, test, vi } from "vitest";
 import { AuthorizationError } from "@formbricks/types/errors";
 import { checkAuthorizationUpdated } from "@/lib/utils/action-client/action-client-middleware";
 import { getOrganizationIdFromWorkspaceId } from "@/lib/utils/helper";
-import { findWorkspaceByIdOrLegacyEnvId } from "@/lib/utils/resolve-client-id";
+import { getWorkspace } from "@/lib/workspace/service";
 import { requireSessionWorkspaceAccess, requireV3WorkspaceAccess } from "./auth";
 
 vi.mock("@formbricks/logger", () => ({
@@ -19,8 +19,8 @@ vi.mock("@/lib/utils/helper", () => ({
   getOrganizationIdFromWorkspaceId: vi.fn(),
 }));
 
-vi.mock("@/lib/utils/resolve-client-id", () => ({
-  findWorkspaceByIdOrLegacyEnvId: vi.fn(),
+vi.mock("@/lib/workspace/service", () => ({
+  getWorkspace: vi.fn(),
 }));
 
 vi.mock("@/lib/utils/action-client/action-client-middleware", () => ({
@@ -39,7 +39,7 @@ describe("requireSessionWorkspaceAccess", () => {
     expect(body.requestId).toBe(requestId);
     expect(body.status).toBe(401);
     expect(body.code).toBe("not_authenticated");
-    expect(findWorkspaceByIdOrLegacyEnvId).not.toHaveBeenCalled();
+    expect(getWorkspace).not.toHaveBeenCalled();
     expect(checkAuthorizationUpdated).not.toHaveBeenCalled();
   });
 
@@ -55,11 +55,11 @@ describe("requireSessionWorkspaceAccess", () => {
     const body = await (result as Response).json();
     expect(body.requestId).toBe(requestId);
     expect(body.code).toBe("not_authenticated");
-    expect(findWorkspaceByIdOrLegacyEnvId).not.toHaveBeenCalled();
+    expect(getWorkspace).not.toHaveBeenCalled();
   });
 
   test("returns 403 when workspace is not found (avoid leaking existence)", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce(null);
+    vi.mocked(getWorkspace).mockResolvedValueOnce(null);
     const result = await requireSessionWorkspaceAccess(
       { user: { id: "user_1" }, expires: "" } as any,
       "ws_nonexistent",
@@ -72,12 +72,12 @@ describe("requireSessionWorkspaceAccess", () => {
     const body = await (result as Response).json();
     expect(body.requestId).toBe(requestId);
     expect(body.code).toBe("forbidden");
-    expect(findWorkspaceByIdOrLegacyEnvId).toHaveBeenCalledWith("ws_nonexistent");
+    expect(getWorkspace).toHaveBeenCalledWith("ws_nonexistent");
     expect(checkAuthorizationUpdated).not.toHaveBeenCalled();
   });
 
   test("returns 403 when user has no access to workspace", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce({ id: "proj_abc" });
+    vi.mocked(getWorkspace).mockResolvedValueOnce({ id: "proj_abc" } as any);
     vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValueOnce("org_1");
     vi.mocked(checkAuthorizationUpdated).mockRejectedValueOnce(new AuthorizationError("Not authorized"));
     const result = await requireSessionWorkspaceAccess(
@@ -102,7 +102,7 @@ describe("requireSessionWorkspaceAccess", () => {
   });
 
   test("returns workspace context when session is valid and user has access", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce({ id: "proj_abc" });
+    vi.mocked(getWorkspace).mockResolvedValueOnce({ id: "proj_abc" } as any);
     vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValueOnce("org_1");
     vi.mocked(checkAuthorizationUpdated).mockResolvedValueOnce(undefined as any);
     const result = await requireSessionWorkspaceAccess(
@@ -144,7 +144,7 @@ function wsPerm(workspaceId: string, permission: ApiKeyPermission = ApiKeyPermis
 
 describe("requireV3WorkspaceAccess", () => {
   beforeEach(() => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValue({ id: "proj_k" });
+    vi.mocked(getWorkspace).mockResolvedValue({ id: "proj_k" } as any);
     vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValue("org_k");
   });
 
@@ -154,7 +154,7 @@ describe("requireV3WorkspaceAccess", () => {
   });
 
   test("delegates to session flow when user is present", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce({ id: "proj_s" });
+    vi.mocked(getWorkspace).mockResolvedValueOnce({ id: "proj_s" } as any);
     vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValueOnce("org_s");
     vi.mocked(checkAuthorizationUpdated).mockResolvedValueOnce(undefined as any);
     const r = await requireV3WorkspaceAccess(
@@ -179,7 +179,7 @@ describe("requireV3WorkspaceAccess", () => {
       workspaceId: "proj_k",
       organizationId: "org_k",
     });
-    expect(findWorkspaceByIdOrLegacyEnvId).toHaveBeenCalledWith("proj_k");
+    expect(getWorkspace).toHaveBeenCalledWith("proj_k");
   });
 
   test("returns context for API key with write on workspace", async () => {
@@ -239,7 +239,7 @@ describe("requireV3WorkspaceAccess", () => {
   });
 
   test("returns 403 when the workspace cannot be resolved for an API key", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce(null);
+    vi.mocked(getWorkspace).mockResolvedValueOnce(null);
     const auth = {
       ...keyBase,
       workspacePermissions: [wsPerm("proj_k", ApiKeyPermission.manage)],

apps/web/app/api/v3/lib/response.test.ts

@@ -1,5 +1,7 @@
 import { describe, expect, test } from "vitest";
 import {
+  createdResponse,
+  noContentResponse,
   problemBadRequest,
   problemForbidden,
   problemInternalError,
@@ -118,3 +120,34 @@ describe("successResponse", () => {
     expect(res.headers.get("Cache-Control")).toBe("private, max-age=60");
   });
 });
+
+describe("createdResponse", () => {
+  test("returns 201 with Location, request id, and data envelope", async () => {
+    const res = createdResponse(
+      { id: "survey_1" },
+      {
+        location: "/api/v3/surveys/survey_1",
+        requestId: "req-created",
+      }
+    );
+
+    expect(res.status).toBe(201);
+    expect(res.headers.get("Location")).toBe("/api/v3/surveys/survey_1");
+    expect(res.headers.get("X-Request-Id")).toBe("req-created");
+    expect(res.headers.get("Content-Type")).toBe("application/json");
+    expect(res.headers.get("Cache-Control")).toContain("no-store");
+    expect(await res.json()).toEqual({
+      data: { id: "survey_1" },
+    });
+  });
+});
+
+describe("noContentResponse", () => {
+  test("returns 204 without a body", async () => {
+    const res = noContentResponse({ requestId: "req-empty" });
+    expect(res.status).toBe(204);
+    expect(res.headers.get("X-Request-Id")).toBe("req-empty");
+    expect(res.headers.get("Cache-Control")).toContain("no-store");
+    expect(await res.text()).toBe("");
+  });
+});

apps/web/app/api/v3/lib/response.ts

@@ -171,3 +171,43 @@ export function successResponse<T>(
     }
   );
 }
+
+export function createdResponse<T>(
+  data: T,
+  options: { location: string; requestId?: string; cache?: string }
+): Response {
+  const headers: Record<string, string> = {
+    "Content-Type": "application/json",
+    "Cache-Control": options.cache ?? CACHE_NO_STORE,
+    Location: options.location,
+  };
+
+  if (options.requestId) {
+    headers["X-Request-Id"] = options.requestId;
+  }
+
+  return Response.json(
+    {
+      data,
+    },
+    {
+      status: 201,
+      headers,
+    }
+  );
+}
+
+export function noContentResponse(options?: { requestId?: string; cache?: string }): Response {
+  const headers: Record<string, string> = {
+    "Cache-Control": options?.cache ?? CACHE_NO_STORE,
+  };
+
+  if (options?.requestId) {
+    headers["X-Request-Id"] = options.requestId;
+  }
+
+  return new Response(null, {
+    status: 204,
+    headers,
+  });
+}

apps/web/app/api/v3/lib/workspace-context.test.ts

@@ -1,45 +1,34 @@
 import { describe, expect, test, vi } from "vitest";
 import { ResourceNotFoundError } from "@formbricks/types/errors";
 import { getOrganizationIdFromWorkspaceId } from "@/lib/utils/helper";
-import { findWorkspaceByIdOrLegacyEnvId } from "@/lib/utils/resolve-client-id";
+import { getWorkspace } from "@/lib/workspace/service";
 import { resolveV3WorkspaceContext } from "./workspace-context";
 
+vi.mock("@/lib/workspace/service", () => ({
+  getWorkspace: vi.fn(),
+}));
+
 vi.mock("@/lib/utils/helper", () => ({
   getOrganizationIdFromWorkspaceId: vi.fn(),
 }));
 
-vi.mock("@/lib/utils/resolve-client-id", () => ({
-  findWorkspaceByIdOrLegacyEnvId: vi.fn(),
-}));
-
 describe("resolveV3WorkspaceContext", () => {
   test("returns workspaceId and organizationId when workspace exists", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce({ id: "ws_abc" });
+    vi.mocked(getWorkspace).mockResolvedValueOnce({ id: "ws_abc" });
     vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValueOnce("org_123");
     const result = await resolveV3WorkspaceContext("ws_abc");
     expect(result).toEqual({
       workspaceId: "ws_abc",
       organizationId: "org_123",
     });
-    expect(findWorkspaceByIdOrLegacyEnvId).toHaveBeenCalledWith("ws_abc");
+    expect(getWorkspace).toHaveBeenCalledWith("ws_abc");
     expect(getOrganizationIdFromWorkspaceId).toHaveBeenCalledWith("ws_abc");
   });
 
-  test("resolves legacy environmentId to canonical workspaceId", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce({ id: "ws_canonical" });
-    vi.mocked(getOrganizationIdFromWorkspaceId).mockResolvedValueOnce("org_456");
-    const result = await resolveV3WorkspaceContext("env_legacy");
-    expect(result).toEqual({
-      workspaceId: "ws_canonical",
-      organizationId: "org_456",
-    });
-    expect(getOrganizationIdFromWorkspaceId).toHaveBeenCalledWith("ws_canonical");
-  });
-
   test("throws when workspace does not exist", async () => {
-    vi.mocked(findWorkspaceByIdOrLegacyEnvId).mockResolvedValueOnce(null);
+    vi.mocked(getWorkspace).mockResolvedValueOnce(null);
     await expect(resolveV3WorkspaceContext("ws_nonexistent")).rejects.toThrow(ResourceNotFoundError);
-    expect(findWorkspaceByIdOrLegacyEnvId).toHaveBeenCalledWith("ws_nonexistent");
+    expect(getWorkspace).toHaveBeenCalledWith("ws_nonexistent");
     expect(getOrganizationIdFromWorkspaceId).not.toHaveBeenCalled();
   });
 });

apps/web/app/api/v3/lib/workspace-context.ts

@@ -6,7 +6,7 @@
  */
 import { ResourceNotFoundError } from "@formbricks/types/errors";
 import { getOrganizationIdFromWorkspaceId } from "@/lib/utils/helper";
-import { findWorkspaceByIdOrLegacyEnvId } from "@/lib/utils/resolve-client-id";
+import { getWorkspace } from "@/lib/workspace/service";
 
 /**
  * Internal IDs derived from a V3 workspace identifier.
@@ -19,21 +19,20 @@ export type V3WorkspaceContext = {
 };
 
 /**
- * Resolves a V3 API workspaceId (or legacy environmentId) to internal workspaceId and organizationId.
+ * Resolves a V3 API workspaceId to internal workspaceId and organizationId.
  *
  * @throws ResourceNotFoundError if the workspace does not exist.
  */
 export async function resolveV3WorkspaceContext(workspaceId: string): Promise<V3WorkspaceContext> {
-  const workspace = await findWorkspaceByIdOrLegacyEnvId(workspaceId);
+  const workspace = await getWorkspace(workspaceId);
   if (!workspace) {
     throw new ResourceNotFoundError("workspace", workspaceId);
   }
 
-  const canonicalId = workspace.id;
-  const organizationId = await getOrganizationIdFromWorkspaceId(canonicalId);
+  const organizationId = await getOrganizationIdFromWorkspaceId(workspace.id);
 
   return {
-    workspaceId: canonicalId,
+    workspaceId: workspace.id,
     organizationId,
   };
 }

apps/web/app/api/v3/surveys/[surveyId]/route.test.ts

@@ -1,318 +0,0 @@
-import { ApiKeyPermission } from "@prisma/client";
-import { NextRequest } from "next/server";
-import { afterEach, beforeEach, describe, expect, test, vi } from "vitest";
-import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/errors";
-import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
-import { getSurvey } from "@/lib/survey/service";
-import { deleteSurvey } from "@/modules/survey/lib/surveys";
-import { DELETE } from "./route";
-
-const { mockAuthenticateRequest } = vi.hoisted(() => ({
-  mockAuthenticateRequest: vi.fn(),
-}));
-
-const { mockQueueAuditEvent, mockBuildAuditLogBaseObject } = vi.hoisted(() => ({
-  mockQueueAuditEvent: vi.fn().mockImplementation(async () => undefined),
-  mockBuildAuditLogBaseObject: vi.fn((action: string, targetType: string, apiUrl: string) => ({
-    action,
-    targetType,
-    userId: "unknown",
-    targetId: "unknown",
-    organizationId: "unknown",
-    status: "failure",
-    oldObject: undefined,
-    newObject: undefined,
-    userType: "api",
-    apiUrl,
-  })),
-}));
-
-vi.mock("next-auth", () => ({
-  getServerSession: vi.fn(),
-}));
-
-vi.mock("@/app/api/v1/auth", async (importOriginal) => {
-  const actual = await importOriginal<typeof import("@/app/api/v1/auth")>();
-  return { ...actual, authenticateRequest: mockAuthenticateRequest };
-});
-
-vi.mock("@/modules/core/rate-limit/helpers", () => ({
-  applyRateLimit: vi.fn().mockResolvedValue(undefined),
-  applyIPRateLimit: vi.fn().mockResolvedValue(undefined),
-}));
-
-vi.mock("@/lib/constants", async (importOriginal) => {
-  const actual = await importOriginal<typeof import("@/lib/constants")>();
-  return { ...actual, AUDIT_LOG_ENABLED: false };
-});
-
-vi.mock("@/app/api/v3/lib/auth", () => ({
-  requireV3WorkspaceAccess: vi.fn(),
-}));
-
-vi.mock("@/lib/survey/service", () => ({
-  getSurvey: vi.fn(),
-}));
-
-vi.mock("@/modules/survey/lib/surveys", () => ({
-  deleteSurvey: vi.fn(),
-}));
-
-vi.mock("@/modules/ee/audit-logs/lib/handler", () => ({
-  queueAuditEvent: mockQueueAuditEvent,
-}));
-
-vi.mock("@/app/lib/api/with-api-logging", () => ({
-  buildAuditLogBaseObject: mockBuildAuditLogBaseObject,
-}));
-
-vi.mock("@formbricks/logger", () => ({
-  logger: {
-    withContext: vi.fn(() => ({
-      warn: vi.fn(),
-      error: vi.fn(),
-    })),
-  },
-}));
-
-const getServerSession = vi.mocked((await import("next-auth")).getServerSession);
-const queueAuditEvent = vi.mocked((await import("@/modules/ee/audit-logs/lib/handler")).queueAuditEvent);
-
-const surveyId = "clxx1234567890123456789012";
-const workspaceId = "clzz9876543210987654321098";
-
-function createRequest(url: string, requestId?: string, extraHeaders?: Record<string, string>): NextRequest {
-  const headers: Record<string, string> = { ...extraHeaders };
-  if (requestId) {
-    headers["x-request-id"] = requestId;
-  }
-
-  return new NextRequest(url, {
-    method: "DELETE",
-    headers,
-  });
-}
-
-const apiKeyAuth = {
-  type: "apiKey" as const,
-  apiKeyId: "key_1",
-  organizationId: "org_1",
-  organizationAccess: {
-    accessControl: { read: true, write: true },
-  },
-  workspacePermissions: [
-    {
-      workspaceId,
-      workspaceName: "W",
-      permission: ApiKeyPermission.write,
-    },
-  ],
-};
-
-describe("DELETE /api/v3/surveys/[surveyId]", () => {
-  beforeEach(() => {
-    vi.resetAllMocks();
-    getServerSession.mockResolvedValue({
-      user: { id: "user_1", name: "User", email: "u@example.com" },
-      expires: "2026-01-01",
-    } as any);
-    mockAuthenticateRequest.mockResolvedValue(null);
-    vi.mocked(getSurvey).mockResolvedValue({
-      id: surveyId,
-      name: "Delete me",
-      workspaceId: workspaceId,
-      type: "link",
-      status: "draft",
-      createdAt: new Date("2026-04-15T10:00:00.000Z"),
-      updatedAt: new Date("2026-04-15T10:00:00.000Z"),
-      responseCount: 0,
-      creator: { name: "User" },
-      singleUse: null,
-    } as any);
-    vi.mocked(deleteSurvey).mockResolvedValue({
-      id: surveyId,
-      workspaceId,
-      type: "link",
-      segment: null,
-      triggers: [],
-    } as any);
-    vi.mocked(requireV3WorkspaceAccess).mockResolvedValue({
-      workspaceId,
-      organizationId: "org_1",
-    });
-  });
-
-  afterEach(() => {
-    vi.clearAllMocks();
-  });
-
-  test("returns 401 when no session and no API key", async () => {
-    getServerSession.mockResolvedValue(null);
-    mockAuthenticateRequest.mockResolvedValue(null);
-
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(401);
-    expect(vi.mocked(getSurvey)).not.toHaveBeenCalled();
-  });
-
-  test("returns 200 with session auth and deletes the survey", async () => {
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-delete"), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(200);
-    expect(requireV3WorkspaceAccess).toHaveBeenCalledWith(
-      expect.objectContaining({ user: expect.any(Object) }),
-      workspaceId,
-      "readWrite",
-      "req-delete",
-      `/api/v3/surveys/${surveyId}`
-    );
-    expect(deleteSurvey).toHaveBeenCalledWith(surveyId);
-    expect(await res.json()).toEqual({
-      data: {
-        id: surveyId,
-      },
-    });
-  });
-
-  test("returns 200 with x-api-key when the key can delete in the survey workspace", async () => {
-    getServerSession.mockResolvedValue(null);
-    mockAuthenticateRequest.mockResolvedValue(apiKeyAuth as any);
-
-    const res = await DELETE(
-      createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-api-key", {
-        "x-api-key": "fbk_test",
-      }),
-      {
-        params: Promise.resolve({ surveyId }),
-      } as never
-    );
-
-    expect(res.status).toBe(200);
-    expect(requireV3WorkspaceAccess).toHaveBeenCalledWith(
-      expect.objectContaining({ apiKeyId: "key_1" }),
-      workspaceId,
-      "readWrite",
-      "req-api-key",
-      `/api/v3/surveys/${surveyId}`
-    );
-  });
-
-  test("returns 400 when surveyId is invalid", async () => {
-    const res = await DELETE(createRequest("http://localhost/api/v3/surveys/not-a-cuid"), {
-      params: Promise.resolve({ surveyId: "not-a-cuid" }),
-    } as never);
-
-    expect(res.status).toBe(400);
-    expect(vi.mocked(getSurvey)).not.toHaveBeenCalled();
-  });
-
-  test("returns 403 when the survey does not exist", async () => {
-    vi.mocked(getSurvey).mockResolvedValueOnce(null);
-
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(403);
-    expect(deleteSurvey).not.toHaveBeenCalled();
-  });
-
-  test("returns 403 when the user lacks readWrite workspace access", async () => {
-    vi.mocked(requireV3WorkspaceAccess).mockResolvedValueOnce(
-      new Response(
-        JSON.stringify({
-          title: "Forbidden",
-          status: 403,
-          detail: "You are not authorized to access this resource",
-          requestId: "req-forbidden",
-        }),
-        { status: 403, headers: { "Content-Type": "application/problem+json" } }
-      )
-    );
-
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-forbidden"), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(403);
-    expect(deleteSurvey).not.toHaveBeenCalled();
-    expect(queueAuditEvent).toHaveBeenCalledWith(
-      expect.objectContaining({
-        action: "deleted",
-        targetType: "survey",
-        targetId: "unknown",
-        organizationId: "unknown",
-        userId: "user_1",
-        userType: "user",
-        status: "failure",
-        oldObject: undefined,
-      })
-    );
-  });
-
-  test("returns 500 when survey deletion fails", async () => {
-    vi.mocked(deleteSurvey).mockRejectedValueOnce(new DatabaseError("db down"));
-
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-db"), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(500);
-    const body = await res.json();
-    expect(body.code).toBe("internal_server_error");
-  });
-
-  test("returns 403 when the survey is deleted after authorization succeeds", async () => {
-    vi.mocked(deleteSurvey).mockRejectedValueOnce(new ResourceNotFoundError("Survey", surveyId));
-
-    const res = await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-race"), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(res.status).toBe(403);
-    const body = await res.json();
-    expect(body.code).toBe("forbidden");
-    expect(queueAuditEvent).toHaveBeenCalledWith(
-      expect.objectContaining({
-        action: "deleted",
-        targetType: "survey",
-        targetId: surveyId,
-        organizationId: "org_1",
-        userId: "user_1",
-        userType: "user",
-        status: "failure",
-        oldObject: expect.objectContaining({
-          id: surveyId,
-          workspaceId: workspaceId,
-        }),
-      })
-    );
-  });
-
-  test("queues an audit log with target, actor, organization, and old object", async () => {
-    await DELETE(createRequest(`http://localhost/api/v3/surveys/${surveyId}`, "req-audit"), {
-      params: Promise.resolve({ surveyId }),
-    } as never);
-
-    expect(queueAuditEvent).toHaveBeenCalledWith(
-      expect.objectContaining({
-        action: "deleted",
-        targetType: "survey",
-        targetId: surveyId,
-        organizationId: "org_1",
-        userId: "user_1",
-        userType: "user",
-        status: "success",
-        oldObject: expect.objectContaining({
-          id: surveyId,
-          workspaceId: workspaceId,
-        }),
-      })
-    );
-  });
-});

apps/web/app/api/v3/surveys/[surveyId]/route.ts

@@ -2,42 +2,140 @@ import { z } from "zod";
 import { logger } from "@formbricks/logger";
 import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/errors";
 import { withV3ApiWrapper } from "@/app/api/v3/lib/api-wrapper";
-import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
-import { problemForbidden, problemInternalError, successResponse } from "@/app/api/v3/lib/response";
-import { getSurvey } from "@/lib/survey/service";
+import {
+  noContentResponse,
+  problemBadRequest,
+  problemForbidden,
+  problemInternalError,
+  successResponse,
+} from "@/app/api/v3/lib/response";
+import {
+  V3SurveyLanguageError,
+  V3SurveyUnsupportedShapeError,
+  serializeV3SurveyResource,
+} from "@/app/api/v3/surveys/serializers";
 import { deleteSurvey } from "@/modules/survey/lib/surveys";
+import { getAuthorizedV3Survey } from "../authorization";
+import { parseV3SurveyLanguageQuery } from "../language";
+
+const surveyParamsSchema = z.object({
+  surveyId: z.cuid2(),
+});
+
+const surveyQuerySchema = z
+  .object({
+    lang: z
+      .union([z.string(), z.array(z.string())])
+      .transform((value, ctx) => {
+        const parsedLanguageQuery = parseV3SurveyLanguageQuery(value);
+
+        if (!parsedLanguageQuery.ok) {
+          ctx.addIssue({
+            code: "custom",
+            message: parsedLanguageQuery.message,
+          });
+          return z.NEVER;
+        }
+
+        return parsedLanguageQuery.languages;
+      })
+      .optional(),
+  })
+  .strict();
+
+export const GET = withV3ApiWrapper({
+  auth: "both",
+  schemas: {
+    params: surveyParamsSchema,
+    query: surveyQuerySchema,
+  },
+  handler: async ({ parsedInput, authentication, requestId, instance }) => {
+    const surveyId = parsedInput.params.surveyId;
+    const log = logger.withContext({ requestId, surveyId });
+
+    try {
+      const { survey, response } = await getAuthorizedV3Survey({
+        surveyId,
+        authentication,
+        access: "read",
+        requestId,
+        instance,
+      });
+
+      if (response) {
+        log.warn({ statusCode: response.status }, "Survey not found or not accessible");
+        return response;
+      }
+
+      try {
+        return successResponse(serializeV3SurveyResource(survey, { lang: parsedInput.query.lang }), {
+          requestId,
+          cache: "private, no-store",
+        });
+      } catch (error) {
+        if (error instanceof V3SurveyLanguageError) {
+          log.warn({ statusCode: 400, lang: parsedInput.query.lang }, "Invalid survey language selector");
+          return problemBadRequest(requestId, error.message, {
+            instance,
+            invalid_params: [
+              {
+                name: "lang",
+                reason: error.message,
+              },
+            ],
+          });
+        }
+
+        if (error instanceof V3SurveyUnsupportedShapeError) {
+          log.warn({ statusCode: 400 }, "Unsupported v3 survey shape");
+          return problemBadRequest(requestId, error.message, {
+            instance,
+            invalid_params: [
+              {
+                name: "survey",
+                reason: error.message,
+              },
+            ],
+          });
+        }
+
+        throw error;
+      }
+    } catch (error) {
+      if (error instanceof DatabaseError) {
+        log.error({ error, statusCode: 500 }, "Database error");
+        return problemInternalError(requestId, "An unexpected error occurred.", instance);
+      }
+
+      log.error({ error, statusCode: 500 }, "V3 survey get unexpected error");
+      return problemInternalError(requestId, "An unexpected error occurred.", instance);
+    }
+  },
+});
 
 export const DELETE = withV3ApiWrapper({
   auth: "both",
   action: "deleted",
   targetType: "survey",
   schemas: {
-    params: z.object({
-      surveyId: z.cuid2(),
-    }),
+    params: surveyParamsSchema,
   },
   handler: async ({ parsedInput, authentication, requestId, instance, auditLog }) => {
     const surveyId = parsedInput.params.surveyId;
     const log = logger.withContext({ requestId, surveyId });
 
     try {
-      const survey = await getSurvey(surveyId);
-
-      if (!survey) {
-        log.warn({ statusCode: 403 }, "Survey not found or not accessible");
-        return problemForbidden(requestId, "You are not authorized to access this resource", instance);
-      }
-
-      const authResult = await requireV3WorkspaceAccess(
+      const { survey, authResult, response } = await getAuthorizedV3Survey({
+        surveyId,
         authentication,
-        survey.workspaceId,
-        "readWrite",
+        access: "readWrite",
         requestId,
-        instance
-      );
+        instance,
+      });
 
-      if (authResult instanceof Response) {
-        return authResult;
+      if (response) {
+        log.warn({ statusCode: 403 }, "Survey not found or not accessible");
+        return response;
       }
 
       if (auditLog) {
@@ -46,14 +144,9 @@ export const DELETE = withV3ApiWrapper({
         auditLog.oldObject = survey;
       }
 
-      const deletedSurvey = await deleteSurvey(surveyId);
+      await deleteSurvey(surveyId);
 
-      return successResponse(
-        {
-          id: deletedSurvey.id,
-        },
-        { requestId }
-      );
+      return noContentResponse({ requestId });
     } catch (error) {
       if (error instanceof ResourceNotFoundError) {
         log.warn({ errorCode: error.name, statusCode: 403 }, "Survey not found or not accessible");

apps/web/app/api/v3/surveys/authorization.test.ts

@@ -0,0 +1,71 @@
+import { describe, expect, test, vi } from "vitest";
+import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
+import { getSurvey } from "@/lib/survey/service";
+import { getAuthorizedV3Survey } from "./authorization";
+
+vi.mock("@/app/api/v3/lib/auth", () => ({
+  requireV3WorkspaceAccess: vi.fn(),
+}));
+
+vi.mock("@/lib/survey/service", () => ({
+  getSurvey: vi.fn(),
+}));
+
+const survey = {
+  id: "clsv1234567890123456789012",
+  workspaceId: "clxx1234567890123456789012",
+};
+const surveyRecord = survey as unknown as NonNullable<Awaited<ReturnType<typeof getSurvey>>>;
+
+describe("getAuthorizedV3Survey", () => {
+  test("returns a generic forbidden response when the survey does not exist", async () => {
+    vi.mocked(getSurvey).mockResolvedValue(null);
+
+    const result = await getAuthorizedV3Survey({
+      surveyId: survey.id,
+      authentication: null,
+      access: "read",
+      requestId: "req_1",
+      instance: "/api/v3/surveys/clsv1234567890123456789012",
+    });
+
+    expect(result.response?.status).toBe(403);
+    expect(requireV3WorkspaceAccess).not.toHaveBeenCalled();
+  });
+
+  test("returns the authorization response when workspace access is denied", async () => {
+    const forbiddenResponse = new Response(null, { status: 403 });
+    vi.mocked(getSurvey).mockResolvedValue(surveyRecord);
+    vi.mocked(requireV3WorkspaceAccess).mockResolvedValue(forbiddenResponse);
+
+    const result = await getAuthorizedV3Survey({
+      surveyId: survey.id,
+      authentication: null,
+      access: "readWrite",
+      requestId: "req_2",
+      instance: "/api/v3/surveys/clsv1234567890123456789012",
+    });
+
+    expect(result.response).toBe(forbiddenResponse);
+  });
+
+  test("returns the survey and authorization context when access is allowed", async () => {
+    const authResult = { workspaceId: survey.workspaceId, organizationId: "org_1" };
+    vi.mocked(getSurvey).mockResolvedValue(surveyRecord);
+    vi.mocked(requireV3WorkspaceAccess).mockResolvedValue(authResult);
+
+    const result = await getAuthorizedV3Survey({
+      surveyId: survey.id,
+      authentication: null,
+      access: "read",
+      requestId: "req_3",
+      instance: "/api/v3/surveys/clsv1234567890123456789012",
+    });
+
+    expect(result).toEqual({
+      survey,
+      authResult,
+      response: null,
+    });
+  });
+});

apps/web/app/api/v3/surveys/authorization.ts

@@ -0,0 +1,37 @@
+import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
+import { problemForbidden } from "@/app/api/v3/lib/response";
+import type { TV3Authentication } from "@/app/api/v3/lib/types";
+import { getSurvey } from "@/lib/survey/service";
+
+export async function getAuthorizedV3Survey(params: {
+  surveyId: string;
+  authentication: TV3Authentication;
+  access: "read" | "readWrite";
+  requestId: string;
+  instance: string;
+}) {
+  const { surveyId, authentication, access, requestId, instance } = params;
+  const survey = await getSurvey(surveyId);
+
+  if (!survey) {
+    return {
+      survey: null,
+      authResult: null,
+      response: problemForbidden(requestId, "You are not authorized to access this resource", instance),
+    };
+  }
+
+  const authResult = await requireV3WorkspaceAccess(
+    authentication,
+    survey.workspaceId,
+    access,
+    requestId,
+    instance
+  );
+
+  if (authResult instanceof Response) {
+    return { survey: null, authResult: null, response: authResult };
+  }
+
+  return { survey, authResult, response: null };
+}

apps/web/app/api/v3/surveys/create.test.ts

@@ -0,0 +1,241 @@
+import { beforeEach, describe, expect, test, vi } from "vitest";
+import { prisma } from "@formbricks/database";
+import type { TSurvey } from "@formbricks/types/surveys/types";
+import { getOrganizationByWorkspaceId } from "@/lib/organization/service";
+import { createSurvey } from "@/lib/survey/service";
+import { getExternalUrlsPermission } from "@/modules/survey/lib/permission";
+import { V3SurveyCreatePermissionError, createV3Survey } from "./create";
+import { ZV3CreateSurveyBody } from "./schemas";
+
+vi.mock("server-only", () => ({}));
+
+vi.mock("@formbricks/database", () => ({
+  prisma: {
+    language: {
+      upsert: vi.fn(),
+    },
+  },
+}));
+
+vi.mock("@/lib/survey/service", () => ({
+  createSurvey: vi.fn(),
+}));
+
+vi.mock("@/lib/organization/service", () => ({
+  getOrganizationByWorkspaceId: vi.fn(),
+}));
+
+vi.mock("@/modules/survey/lib/permission", () => ({
+  getExternalUrlsPermission: vi.fn(),
+}));
+
+vi.mock("@formbricks/logger", () => ({
+  logger: {
+    withContext: vi.fn(() => ({
+      error: vi.fn(),
+      warn: vi.fn(),
+    })),
+  },
+}));
+
+const workspaceId = "clxx1234567890123456789012";
+
+const rawCreateBody = {
+  workspaceId,
+  name: "Product Feedback",
+  defaultLanguage: "en-US",
+  metadata: {
+    cx_operation: "enterprise_onboarding",
+    title: { "en-US": "Product Feedback", "de-DE": "Produktfeedback" },
+  },
+  blocks: [
+    {
+      id: "clbk1234567890123456789012",
+      name: "Main Block",
+      elements: [
+        {
+          id: "satisfaction",
+          type: "openText",
+          headline: {
+            "en-US": "What should we improve?",
+            "de-DE": "Was sollen wir verbessern?",
+          },
+          required: true,
+        },
+      ],
+    },
+  ],
+};
+
+const createBody = ZV3CreateSurveyBody.parse(rawCreateBody);
+
+const createdSurvey = {
+  id: "clsv1234567890123456789012",
+  workspaceId,
+  createdAt: new Date("2026-04-21T10:00:00.000Z"),
+  updatedAt: new Date("2026-04-21T10:00:00.000Z"),
+  name: "Product Feedback",
+  type: "link",
+  status: "draft",
+  metadata: {},
+  languages: [],
+  questions: [],
+  welcomeCard: { enabled: false },
+  blocks: createBody.blocks,
+  endings: [],
+  hiddenFields: { enabled: false },
+  variables: [],
+} as unknown as TSurvey;
+
+type TLanguageUpsertArgs = Parameters<typeof prisma.language.upsert>[0];
+type TLanguageUpsertReturn = ReturnType<typeof prisma.language.upsert>;
+
+describe("createV3Survey", () => {
+  beforeEach(() => {
+    vi.resetAllMocks();
+    vi.mocked(prisma.language.upsert).mockImplementation(
+      (args: TLanguageUpsertArgs): TLanguageUpsertReturn => {
+        const workspaceIdCode = args.where.workspaceId_code;
+        if (!workspaceIdCode) {
+          throw new Error("Expected workspaceId_code upsert selector");
+        }
+
+        return Promise.resolve({
+          id: `cllang${workspaceIdCode.code.toLowerCase().replaceAll("-", "")}`,
+          code: workspaceIdCode.code,
+          alias: null,
+          workspaceId: workspaceIdCode.workspaceId,
+          createdAt: new Date("2026-04-21T10:00:00.000Z"),
+          updatedAt: new Date("2026-04-21T10:00:00.000Z"),
+        }) as TLanguageUpsertReturn;
+      }
+    );
+    vi.mocked(createSurvey).mockResolvedValue(createdSurvey);
+    vi.mocked(getOrganizationByWorkspaceId).mockResolvedValue({
+      id: "org_1",
+      name: "Organization",
+      createdAt: new Date(),
+      updatedAt: new Date(),
+      billing: {
+        limits: { monthly: { responses: 1000 }, workspaces: 1 },
+        stripeCustomerId: null,
+        usageCycleAnchor: null,
+      },
+      isAISmartToolsEnabled: false,
+      isAIDataAnalysisEnabled: false,
+      whitelabel: undefined,
+    });
+    vi.mocked(getExternalUrlsPermission).mockResolvedValue(true);
+  });
+
+  test("maps the public v3 body to the internal create payload", async () => {
+    await createV3Survey(
+      createBody,
+      {
+        user: { id: "user_1", email: "user@example.com", name: "User" },
+        expires: "2026-05-01",
+      },
+      "req_1"
+    );
+
+    expect(prisma.language.upsert).toHaveBeenCalledWith(
+      expect.objectContaining({
+        where: { workspaceId_code: { workspaceId, code: "en-US" } },
+        create: { workspaceId, code: "en-US", alias: null },
+      })
+    );
+    expect(prisma.language.upsert).toHaveBeenCalledWith(
+      expect.objectContaining({
+        where: { workspaceId_code: { workspaceId, code: "de-DE" } },
+        create: { workspaceId, code: "de-DE", alias: null },
+      })
+    );
+    expect(createSurvey).toHaveBeenCalledWith(
+      workspaceId,
+      expect.objectContaining({
+        name: "Product Feedback",
+        type: "link",
+        status: "draft",
+        createdBy: "user_1",
+        questions: [],
+        metadata: expect.objectContaining({
+          cx_operation: "enterprise_onboarding",
+          title: { default: "Product Feedback", "de-DE": "Produktfeedback" },
+        }),
+        blocks: [
+          expect.objectContaining({
+            elements: [
+              expect.objectContaining({
+                headline: {
+                  default: "What should we improve?",
+                  "de-DE": "Was sollen wir verbessern?",
+                },
+              }),
+            ],
+          }),
+        ],
+        languages: [
+          expect.objectContaining({ default: true, enabled: true }),
+          expect.objectContaining({ default: false, enabled: true }),
+        ],
+      })
+    );
+    expect(getOrganizationByWorkspaceId).not.toHaveBeenCalled();
+    expect(getExternalUrlsPermission).not.toHaveBeenCalled();
+  });
+
+  test("keeps createdBy null for API key calls and honors explicit disabled languages", async () => {
+    const body = ZV3CreateSurveyBody.parse({
+      ...rawCreateBody,
+      languages: [{ code: "fr-FR", enabled: false }],
+    });
+
+    await createV3Survey(
+      body,
+      {
+        type: "apiKey",
+        apiKeyId: "key_1",
+        organizationId: "org_1",
+        organizationAccess: { accessControl: { read: true, write: true } },
+        workspacePermissions: [],
+      },
+      "req_2"
+    );
+
+    expect(createSurvey).toHaveBeenCalledWith(
+      workspaceId,
+      expect.objectContaining({
+        createdBy: null,
+        languages: expect.arrayContaining([
+          expect.objectContaining({ language: expect.objectContaining({ code: "fr-FR" }), enabled: false }),
+        ]),
+      })
+    );
+  });
+
+  test("rejects external CTA buttons when the organization does not have external URL permission", async () => {
+    vi.mocked(getExternalUrlsPermission).mockResolvedValue(false);
+    const body = ZV3CreateSurveyBody.parse({
+      ...rawCreateBody,
+      blocks: [
+        {
+          ...rawCreateBody.blocks[0],
+          elements: [
+            {
+              id: "external_cta",
+              type: "cta",
+              headline: { "en-US": "Continue" },
+              required: false,
+              buttonExternal: true,
+              buttonUrl: "https://example.com",
+              ctaButtonLabel: { "en-US": "Open" },
+            },
+          ],
+        },
+      ],
+    });
+
+    await expect(createV3Survey(body, null, "req_3")).rejects.toThrow(V3SurveyCreatePermissionError);
+    expect(createSurvey).not.toHaveBeenCalled();
+  });
+});

apps/web/app/api/v3/surveys/create.ts

@@ -0,0 +1,106 @@
+import "server-only";
+import type { TSurveyCreateInput } from "@formbricks/types/surveys/types";
+import type { TV3Authentication } from "@/app/api/v3/lib/types";
+import { getOrganizationByWorkspaceId } from "@/lib/organization/service";
+import { createSurvey } from "@/lib/survey/service";
+import { getElementsFromBlocks } from "@/lib/survey/utils";
+import { getExternalUrlsPermission } from "@/modules/survey/lib/permission";
+import { type TV3SurveyLanguageRequest, ensureV3WorkspaceLanguages } from "./languages";
+import { prepareV3SurveyCreate } from "./prepare";
+import { V3SurveyReferenceValidationError } from "./reference-validation";
+import type { TV3CreateSurveyBody } from "./schemas";
+
+export class V3SurveyCreatePermissionError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = "V3SurveyCreatePermissionError";
+  }
+}
+
+function getCreatedBy(authentication: TV3Authentication): string | null {
+  if (authentication && "user" in authentication && authentication.user?.id) {
+    return authentication.user.id;
+  }
+
+  return null;
+}
+
+function hasExternalUrlReferences(input: TV3CreateSurveyBody): boolean {
+  const hasExternalEndingLink = input.endings.some(
+    (ending) => ending.type === "endScreen" && Boolean(ending.buttonLink)
+  );
+  const hasExternalCtaButton = getElementsFromBlocks(input.blocks).some(
+    (element) => element.type === "cta" && element.buttonExternal
+  );
+
+  return hasExternalEndingLink || hasExternalCtaButton;
+}
+
+async function assertV3SurveyCreatePermissions(
+  input: TV3CreateSurveyBody,
+  organizationId?: string
+): Promise<void> {
+  if (!hasExternalUrlReferences(input)) {
+    return;
+  }
+
+  const resolvedOrganizationId =
+    organizationId ?? (await getOrganizationByWorkspaceId(input.workspaceId))?.id ?? null;
+  if (!resolvedOrganizationId) {
+    return;
+  }
+
+  const isExternalUrlsAllowed = await getExternalUrlsPermission(resolvedOrganizationId);
+  if (!isExternalUrlsAllowed) {
+    throw new V3SurveyCreatePermissionError(
+      "External URLs are not enabled for this organization. Upgrade to use external survey links."
+    );
+  }
+}
+
+export async function executeV3SurveyCreate(params: {
+  input: TV3CreateSurveyBody;
+  authentication: TV3Authentication;
+  languageRequests: TV3SurveyLanguageRequest[];
+  requestId?: string;
+}) {
+  const { input, authentication, languageRequests, requestId } = params;
+  const languages = await ensureV3WorkspaceLanguages(input.workspaceId, languageRequests, requestId);
+  const surveyCreateInput: TSurveyCreateInput = {
+    name: input.name,
+    type: "link",
+    status: input.status,
+    metadata: input.metadata,
+    welcomeCard: input.welcomeCard,
+    blocks: input.blocks,
+    endings: input.endings,
+    hiddenFields: input.hiddenFields,
+    variables: input.variables,
+    languages,
+    questions: [],
+    createdBy: getCreatedBy(authentication),
+  };
+
+  return await createSurvey(input.workspaceId, surveyCreateInput);
+}
+
+export async function createV3Survey(
+  input: TV3CreateSurveyBody,
+  authentication: TV3Authentication,
+  requestId?: string,
+  organizationId?: string
+) {
+  const preparation = prepareV3SurveyCreate(input);
+  if (!preparation.ok) {
+    throw new V3SurveyReferenceValidationError(preparation.validation.invalidParams);
+  }
+
+  await assertV3SurveyCreatePermissions(input, organizationId);
+
+  return await executeV3SurveyCreate({
+    input: preparation.document,
+    authentication,
+    languageRequests: preparation.languageRequests,
+    requestId,
+  });
+}

apps/web/app/api/v3/surveys/language.test.ts

@@ -0,0 +1,106 @@
+import { describe, expect, test } from "vitest";
+import {
+  normalizeV3SurveyLanguageTag,
+  parseV3SurveyLanguageQuery,
+  resolveV3SurveyLanguageCode,
+} from "./language";
+
+const languages = [
+  { code: "en-US", enabled: true },
+  { code: "de-DE", enabled: true },
+  { code: "fr-FR", enabled: false },
+];
+
+describe("normalizeV3SurveyLanguageTag", () => {
+  test.each([
+    ["EN_us", "en-US"],
+    ["en-us", "en-US"],
+    ["de", "de"],
+    ["zh_hans_cn", "zh-Hans-CN"],
+  ])("normalizes %s to %s", (input, expected) => {
+    expect(normalizeV3SurveyLanguageTag(input)).toBe(expected);
+  });
+
+  test("returns null for invalid language tags", () => {
+    expect(normalizeV3SurveyLanguageTag("not a locale")).toBeNull();
+  });
+});
+
+describe("parseV3SurveyLanguageQuery", () => {
+  test("parses comma-separated language selectors", () => {
+    expect(parseV3SurveyLanguageQuery("de-DE, pt_PT, EN_us")).toEqual({
+      ok: true,
+      languages: ["de-DE", "pt-PT", "en-US"],
+    });
+  });
+
+  test("parses repeated language selectors", () => {
+    expect(parseV3SurveyLanguageQuery(["de-DE", "pt_PT,en_us"])).toEqual({
+      ok: true,
+      languages: ["de-DE", "pt-PT", "en-US"],
+    });
+  });
+
+  test("deduplicates language selectors case-insensitively", () => {
+    expect(parseV3SurveyLanguageQuery("de-DE,DE_de")).toEqual({
+      ok: true,
+      languages: ["de-DE"],
+    });
+  });
+
+  test("rejects empty language selectors", () => {
+    expect(parseV3SurveyLanguageQuery("de-DE,")).toEqual({
+      ok: false,
+      message: "Language selector must contain valid comma-separated locale codes",
+    });
+  });
+
+  test("rejects invalid language selectors", () => {
+    expect(parseV3SurveyLanguageQuery("not a locale")).toEqual({
+      ok: false,
+      message: "Language 'not a locale' is not a valid locale code",
+    });
+  });
+});
+
+describe("resolveV3SurveyLanguageCode", () => {
+  test("matches configured languages case-insensitively and normalizes underscores", () => {
+    expect(resolveV3SurveyLanguageCode("DE_de", languages)).toEqual({ ok: true, code: "de-DE" });
+  });
+
+  test("resolves language-only tags when exactly one configured language matches", () => {
+    expect(resolveV3SurveyLanguageCode("de", languages)).toEqual({ ok: true, code: "de-DE" });
+  });
+
+  test("resolves disabled configured languages for management reads", () => {
+    expect(resolveV3SurveyLanguageCode("fr", languages)).toEqual({ ok: true, code: "fr-FR" });
+  });
+
+  test("returns ambiguous when language-only tags match multiple configured languages", () => {
+    expect(
+      resolveV3SurveyLanguageCode("pt", [
+        { code: "pt-BR", enabled: true },
+        { code: "pt-PT", enabled: true },
+      ])
+    ).toEqual({
+      ok: false,
+      reason: "ambiguous",
+      message: "Language 'pt' is ambiguous for this survey; use one of pt-BR, pt-PT",
+    });
+  });
+
+  test("returns unknown for languages not configured on the survey", () => {
+    expect(resolveV3SurveyLanguageCode("es-ES", languages)).toEqual({
+      ok: false,
+      reason: "unknown",
+      message: "Language 'es-ES' is not configured for this survey",
+    });
+  });
+
+  test("resolves the implicit default language for surveys without configured languages", () => {
+    expect(resolveV3SurveyLanguageCode("en", [{ code: "en-US", enabled: true }])).toEqual({
+      ok: true,
+      code: "en-US",
+    });
+  });
+});

apps/web/app/api/v3/surveys/language.ts

@@ -0,0 +1,149 @@
+import type { TSurvey as TInternalSurvey } from "@formbricks/types/surveys/types";
+
+type TV3SurveyLanguageInput = {
+  code: string;
+  enabled: boolean;
+};
+
+export type TV3SurveyLanguage = {
+  code: string;
+  default: boolean;
+  enabled: boolean;
+};
+
+type TV3SurveyLanguageQueryInput = string | string[];
+
+type TResolveV3SurveyLanguageCodeResult =
+  | { ok: true; code: string }
+  | { ok: false; reason: "invalid" | "unknown" | "ambiguous"; message: string };
+
+type TParseV3SurveyLanguageQueryResult = { ok: true; languages: string[] } | { ok: false; message: string };
+
+export function normalizeV3SurveyLanguageTag(value: string): string | null {
+  const normalizedSeparators = value.trim().replaceAll("_", "-");
+
+  try {
+    return Intl.getCanonicalLocales(normalizedSeparators)[0] ?? null;
+  } catch {
+    return null;
+  }
+}
+
+export function parseV3SurveyLanguageQuery(
+  value: TV3SurveyLanguageQueryInput
+): TParseV3SurveyLanguageQueryResult {
+  const requestedLanguages = (Array.isArray(value) ? value : [value])
+    .flatMap((entry) => entry.split(","))
+    .map((entry) => entry.trim());
+
+  if (requestedLanguages.some((entry) => entry.length === 0)) {
+    return {
+      ok: false,
+      message: "Language selector must contain valid comma-separated locale codes",
+    };
+  }
+
+  const normalizedLanguages: string[] = [];
+
+  for (const language of requestedLanguages) {
+    const normalizedLanguage = normalizeV3SurveyLanguageTag(language);
+
+    if (!normalizedLanguage) {
+      return {
+        ok: false,
+        message: `Language '${language}' is not a valid locale code`,
+      };
+    }
+
+    if (!normalizedLanguages.some((entry) => entry.toLowerCase() === normalizedLanguage.toLowerCase())) {
+      normalizedLanguages.push(normalizedLanguage);
+    }
+  }
+
+  return { ok: true, languages: normalizedLanguages };
+}
+
+function getLanguageSubtag(languageTag: string): string {
+  return languageTag.split("-")[0]?.toLowerCase() ?? languageTag.toLowerCase();
+}
+
+export function resolveV3SurveyLanguageCode(
+  requestedLanguage: string,
+  languages: TV3SurveyLanguageInput[]
+): TResolveV3SurveyLanguageCodeResult {
+  const normalizedRequestedLanguage = normalizeV3SurveyLanguageTag(requestedLanguage);
+
+  if (!normalizedRequestedLanguage) {
+    return {
+      ok: false,
+      reason: "invalid",
+      message: `Language '${requestedLanguage}' is not a valid locale code`,
+    };
+  }
+
+  const normalizedLanguages = languages.map((language) => ({
+    ...language,
+    code: normalizeV3SurveyLanguageTag(language.code) ?? language.code,
+  }));
+  const exactMatch = normalizedLanguages.find(
+    (language) => language.code.toLowerCase() === normalizedRequestedLanguage.toLowerCase()
+  );
+
+  if (exactMatch) {
+    return { ok: true, code: exactMatch.code };
+  }
+
+  const requestedSubtag = getLanguageSubtag(normalizedRequestedLanguage);
+  const hasRegionOrScript = normalizedRequestedLanguage.includes("-");
+  const matchingLanguages = hasRegionOrScript
+    ? []
+    : normalizedLanguages.filter((language) => getLanguageSubtag(language.code) === requestedSubtag);
+
+  if (matchingLanguages.length > 1) {
+    return {
+      ok: false,
+      reason: "ambiguous",
+      message: `Language '${normalizedRequestedLanguage}' is ambiguous for this survey; use one of ${matchingLanguages.map((language) => language.code).join(", ")}`,
+    };
+  }
+
+  const languageMatch = matchingLanguages[0];
+  if (languageMatch) {
+    return { ok: true, code: languageMatch.code };
+  }
+
+  return {
+    ok: false,
+    reason: "unknown",
+    message: `Language '${normalizedRequestedLanguage}' is not configured for this survey`,
+  };
+}
+
+export function getV3SurveyLanguages(
+  survey: Pick<TInternalSurvey, "languages">,
+  fallbackLanguage: string
+): TV3SurveyLanguage[] {
+  const languages = (survey.languages ?? []).map((surveyLanguage) => ({
+    code: normalizeV3SurveyLanguageTag(surveyLanguage.language.code) ?? surveyLanguage.language.code,
+    default: surveyLanguage.default,
+    enabled: surveyLanguage.enabled,
+  }));
+
+  if (languages.length === 0) {
+    return [{ code: fallbackLanguage, default: true, enabled: true }];
+  }
+
+  return languages;
+}
+
+export function getV3SurveyDefaultLanguage(
+  survey: Pick<TInternalSurvey, "languages">,
+  fallbackLanguage: string
+): string {
+  const defaultLanguageCode = survey.languages?.find((surveyLanguage) => surveyLanguage.default)?.language
+    .code;
+
+  return defaultLanguageCode
+    ? (normalizeV3SurveyLanguageTag(defaultLanguageCode) ?? defaultLanguageCode)
+    : fallbackLanguage;
+}

apps/web/app/api/v3/surveys/languages.ts

@@ -0,0 +1,150 @@
+import "server-only";
+import { Prisma } from "@prisma/client";
+import { prisma } from "@formbricks/database";
+import { logger } from "@formbricks/logger";
+import { DatabaseError } from "@formbricks/types/errors";
+import type { TI18nString } from "@formbricks/types/i18n";
+import type { TSurveyLanguage } from "@formbricks/types/surveys/types";
+import type { TLanguage } from "@formbricks/types/workspace";
+import { normalizeV3SurveyLanguageTag } from "./language";
+import type { TV3SurveyDocument } from "./schemas";
+
+export type TV3SurveyLanguageRequest = {
+  code: string;
+  default: boolean;
+  enabled: boolean;
+};
+
+const languageSelect = {
+  id: true,
+  code: true,
+  alias: true,
+  workspaceId: true,
+  createdAt: true,
+  updatedAt: true,
+} satisfies Prisma.LanguageSelect;
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function isInternalI18nString(value: unknown): value is TI18nString {
+  return (
+    isPlainObject(value) &&
+    typeof value.default === "string" &&
+    Object.values(value).every((entry) => typeof entry === "string")
+  );
+}
+
+function collectI18nLanguageCodes(value: unknown, languageCodes: Set<string>): void {
+  if (Array.isArray(value)) {
+    value.forEach((entry) => collectI18nLanguageCodes(entry, languageCodes));
+    return;
+  }
+
+  if (!isPlainObject(value)) {
+    return;
+  }
+
+  if (isInternalI18nString(value)) {
+    Object.keys(value).forEach((languageCode) => {
+      if (languageCode !== "default") {
+        const normalizedLanguageCode = normalizeV3SurveyLanguageTag(languageCode);
+        if (normalizedLanguageCode) {
+          languageCodes.add(normalizedLanguageCode);
+        }
+      }
+    });
+    return;
+  }
+
+  Object.values(value).forEach((entry) => collectI18nLanguageCodes(entry, languageCodes));
+}
+
+export function deriveV3SurveyLanguageRequests(input: TV3SurveyDocument): TV3SurveyLanguageRequest[] {
+  const requestedLanguages = new Map<string, TV3SurveyLanguageRequest>();
+  const addLanguage = (code: string, enabled = true): void => {
+    requestedLanguages.set(code, {
+      code,
+      default: code.toLowerCase() === input.defaultLanguage.toLowerCase(),
+      enabled: code.toLowerCase() === input.defaultLanguage.toLowerCase() ? true : enabled,
+    });
+  };
+
+  addLanguage(input.defaultLanguage);
+
+  input.languages.forEach((language) => {
+    addLanguage(language.code, language.enabled);
+  });
+
+  const contentLanguageCodes = new Set<string>();
+  collectI18nLanguageCodes(input.welcomeCard, contentLanguageCodes);
+  collectI18nLanguageCodes(input.blocks, contentLanguageCodes);
+  collectI18nLanguageCodes(input.endings, contentLanguageCodes);
+  collectI18nLanguageCodes(input.metadata, contentLanguageCodes);
+  contentLanguageCodes.forEach((languageCode) => {
+    if (!requestedLanguages.has(languageCode)) {
+      addLanguage(languageCode);
+    }
+  });
+
+  return Array.from(requestedLanguages.values()).sort((left, right) => {
+    if (left.default) return -1;
+    if (right.default) return 1;
+    return left.code.localeCompare(right.code);
+  });
+}
+
+export async function ensureV3WorkspaceLanguages(
+  workspaceId: string,
+  languageRequests: TV3SurveyLanguageRequest[],
+  requestId?: string
+): Promise<TSurveyLanguage[]> {
+  const log = logger.withContext({ requestId, workspaceId });
+
+  try {
+    const languages = await Promise.all(
+      languageRequests.map((languageRequest) =>
+        prisma.language.upsert({
+          where: {
+            workspaceId_code: {
+              workspaceId,
+              code: languageRequest.code,
+            },
+          },
+          update: {},
+          create: {
+            workspaceId,
+            code: languageRequest.code,
+            alias: null,
+          },
+          select: languageSelect,
+        })
+      )
+    );
+    const languageByCode = new Map(
+      languages.map((language) => [language.code.toLowerCase(), language as TLanguage])
+    );
+
+    return languageRequests.map((languageRequest) => {
+      const language = languageByCode.get(languageRequest.code.toLowerCase());
+
+      if (!language) {
+        throw new DatabaseError(`Failed to resolve language '${languageRequest.code}'`);
+      }
+
+      return {
+        language,
+        default: languageRequest.default,
+        enabled: languageRequest.enabled,
+      };
+    });
+  } catch (error) {
+    if (error instanceof Prisma.PrismaClientKnownRequestError) {
+      log.error({ error }, "Error creating workspace languages for v3 survey write");
+      throw new DatabaseError(error.message);
+    }
+
+    throw error;
+  }
+}

apps/web/app/api/v3/surveys/prepare.test.ts

@@ -0,0 +1,165 @@
+import { describe, expect, test, vi } from "vitest";
+import type { TSurvey } from "@formbricks/types/surveys/types";
+import { prepareV3SurveyCreate, prepareV3SurveyCreateInput, prepareV3SurveyPatchInput } from "./prepare";
+import { ZV3CreateSurveyBody } from "./schemas";
+
+vi.mock("server-only", () => ({}));
+
+const workspaceId = "clxx1234567890123456789012";
+
+const rawCreateBody = {
+  workspaceId,
+  name: "Product Feedback",
+  defaultLanguage: "en-US",
+  blocks: [
+    {
+      id: "clbk1234567890123456789012",
+      name: "Main Block",
+      elements: [
+        {
+          id: "satisfaction",
+          type: "openText",
+          headline: { "en-US": "What should we improve?", "de-DE": "Was sollen wir verbessern?" },
+          required: true,
+        },
+      ],
+    },
+  ],
+};
+
+const createBody = ZV3CreateSurveyBody.parse(rawCreateBody);
+
+const survey = {
+  id: "clsv1234567890123456789012",
+  workspaceId,
+  createdAt: new Date("2026-04-21T10:00:00.000Z"),
+  updatedAt: new Date("2026-04-21T10:00:00.000Z"),
+  name: "Product Feedback",
+  type: "link",
+  status: "draft",
+  metadata: {},
+  languages: [
+    {
+      language: {
+        id: "cllangenus000000000000000",
+        code: "en-US",
+        alias: null,
+        workspaceId,
+        createdAt: new Date("2026-04-21T10:00:00.000Z"),
+        updatedAt: new Date("2026-04-21T10:00:00.000Z"),
+      },
+      default: true,
+      enabled: true,
+    },
+  ],
+  questions: [],
+  welcomeCard: { enabled: false },
+  blocks: createBody.blocks,
+  endings: [],
+  hiddenFields: { enabled: false },
+  variables: [],
+} as unknown as TSurvey;
+
+describe("v3 survey preparation", () => {
+  test("prepares a valid create document and derives language side effects", () => {
+    const preparation = prepareV3SurveyCreate(createBody);
+
+    expect(preparation.ok).toBe(true);
+    if (!preparation.ok) {
+      throw new Error("Expected create preparation to succeed");
+    }
+    expect(preparation.languageRequests).toEqual([
+      { code: "en-US", default: true, enabled: true },
+      { code: "de-DE", default: false, enabled: true },
+    ]);
+  });
+
+  test("returns validation results instead of throwing for invalid create input", () => {
+    const preparation = prepareV3SurveyCreateInput({
+      ...rawCreateBody,
+      blocks: [
+        {
+          ...rawCreateBody.blocks[0],
+          elements: [
+            {
+              ...rawCreateBody.blocks[0].elements[0],
+              buttonUrl: "https://example.com",
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(preparation.ok).toBe(false);
+    if (!preparation.ok) {
+      expect(preparation.validation.invalidParams).toEqual(
+        expect.arrayContaining([expect.objectContaining({ name: "blocks.0.elements.0.buttonUrl" })])
+      );
+    }
+  });
+
+  test("applies a patch over the current document before validating references", () => {
+    const preparation = prepareV3SurveyPatchInput(survey, {
+      blocks: [
+        {
+          ...rawCreateBody.blocks[0],
+          logicFallback: "clmiss12345678901234567890",
+        },
+      ],
+    });
+
+    expect(preparation.ok).toBe(false);
+    if (!preparation.ok) {
+      expect(preparation.validation.invalidParams).toEqual(
+        expect.arrayContaining([expect.objectContaining({ name: "blocks.0.logicFallback" })])
+      );
+    }
+  });
+
+  test("rejects patch input with immutable fields as validation results", () => {
+    const preparation = prepareV3SurveyPatchInput(survey, {
+      workspaceId,
+    });
+
+    expect(preparation.ok).toBe(false);
+    if (!preparation.ok) {
+      expect(preparation.validation.invalidParams).toEqual(
+        expect.arrayContaining([expect.objectContaining({ name: "workspaceId" })])
+      );
+    }
+  });
+
+  test("rejects non-draft element id changes on non-draft surveys", () => {
+    const preparation = prepareV3SurveyPatchInput(
+      {
+        ...survey,
+        status: "inProgress",
+      } as TSurvey,
+      {
+        blocks: [
+          {
+            ...rawCreateBody.blocks[0],
+            elements: [
+              {
+                ...rawCreateBody.blocks[0].elements[0],
+                id: "renamed_satisfaction",
+              },
+            ],
+          },
+        ],
+      }
+    );
+
+    expect(preparation.ok).toBe(false);
+    if (!preparation.ok) {
+      expect(preparation.validation.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            name: "blocks.0.elements.0.id",
+            reason: expect.stringContaining("cannot be changed"),
+          }),
+        ])
+      );
+    }
+  });
+});

apps/web/app/api/v3/surveys/prepare.ts

@@ -0,0 +1,178 @@
+import type { TSurvey as TInternalSurvey } from "@formbricks/types/surveys/types";
+import type { InvalidParam } from "@/app/api/v3/lib/response";
+import { getV3SurveyDefaultLanguage, getV3SurveyLanguages } from "./language";
+import { type TV3SurveyLanguageRequest, deriveV3SurveyLanguageRequests } from "./languages";
+import {
+  DEFAULT_V3_SURVEY_LANGUAGE,
+  type TV3CreateSurveyBody,
+  type TV3PatchSurveyBody,
+  type TV3SurveyDocument,
+  ZV3CreateSurveyBody,
+  ZV3SurveyDocumentBase,
+  createZV3PatchSurveyBodySchema,
+  formatV3ZodInvalidParams,
+} from "./schemas";
+import { type TV3SurveyDocumentValidationResult, validateV3SurveyDocument } from "./validation";
+
+type TV3SurveyPrepareSuccess<TDocument> = {
+  ok: true;
+  document: TDocument;
+  validation: Extract<TV3SurveyDocumentValidationResult, { valid: true }>;
+  languageRequests: TV3SurveyLanguageRequest[];
+};
+
+type TV3SurveyPrepareFailure = {
+  ok: false;
+  validation: Extract<TV3SurveyDocumentValidationResult, { valid: false }>;
+};
+
+export type TV3SurveyPrepareResult<TDocument> = TV3SurveyPrepareSuccess<TDocument> | TV3SurveyPrepareFailure;
+
+function invalidPreparation(invalidParams: InvalidParam[]): TV3SurveyPrepareFailure {
+  return {
+    ok: false,
+    validation: {
+      valid: false,
+      invalidParams,
+    },
+  };
+}
+
+function validPreparation<TDocument extends TV3SurveyDocument>(
+  document: TDocument
+): TV3SurveyPrepareResult<TDocument> {
+  const validation = validateV3SurveyDocument(document);
+
+  if (!validation.valid) {
+    return invalidPreparation(validation.invalidParams);
+  }
+
+  return {
+    ok: true,
+    document,
+    validation,
+    languageRequests: deriveV3SurveyLanguageRequests(document),
+  };
+}
+
+function buildDocumentFromSurvey(survey: TInternalSurvey): TV3SurveyPrepareResult<TV3SurveyDocument> {
+  if (Array.isArray(survey.questions) && survey.questions.length > 0) {
+    return invalidPreparation([
+      {
+        name: "survey",
+        reason: "Legacy question-based surveys are not supported by the v3 survey management API",
+      },
+    ]);
+  }
+
+  const documentResult = ZV3SurveyDocumentBase.safeParse({
+    name: survey.name,
+    status: survey.status,
+    metadata: survey.metadata ?? {},
+    defaultLanguage: getV3SurveyDefaultLanguage(survey, DEFAULT_V3_SURVEY_LANGUAGE),
+    languages: getV3SurveyLanguages(survey, DEFAULT_V3_SURVEY_LANGUAGE),
+    welcomeCard: survey.welcomeCard,
+    blocks: survey.blocks,
+    endings: survey.endings,
+    hiddenFields: survey.hiddenFields,
+    variables: survey.variables,
+  });
+
+  if (!documentResult.success) {
+    return invalidPreparation(formatV3ZodInvalidParams(documentResult.error, "survey"));
+  }
+
+  return validPreparation(documentResult.data);
+}
+
+function mergeV3SurveyPatch(document: TV3SurveyDocument, patch: TV3PatchSurveyBody): TV3SurveyDocument {
+  return {
+    ...document,
+    ...Object.fromEntries(Object.entries(patch).filter(([, value]) => value !== undefined)),
+  };
+}
+
+function getElementIds(document: TV3SurveyDocument): Set<string> {
+  return new Set(document.blocks.flatMap((block) => block.elements.map((element) => element.id)));
+}
+
+function getImmutableElementIdIssues(
+  currentDocument: TV3SurveyDocument,
+  patchedDocument: TV3SurveyDocument
+): InvalidParam[] {
+  if (currentDocument.status === "draft") {
+    return [];
+  }
+
+  const patchedElementIds = getElementIds(patchedDocument);
+  const issues: InvalidParam[] = [];
+
+  currentDocument.blocks.forEach((currentBlock) => {
+    const patchedBlockIndex = patchedDocument.blocks.findIndex((block) => block.id === currentBlock.id);
+    if (patchedBlockIndex === -1) {
+      return;
+    }
+
+    const patchedBlock = patchedDocument.blocks[patchedBlockIndex];
+    currentBlock.elements.forEach((currentElement, elementIndex) => {
+      if (currentElement.isDraft || patchedElementIds.has(currentElement.id)) {
+        return;
+      }
+
+      const patchedElement = patchedBlock.elements[elementIndex];
+      if (!patchedElement || patchedElement.id === currentElement.id) {
+        return;
+      }
+
+      issues.push({
+        name: `blocks.${patchedBlockIndex}.elements.${elementIndex}.id`,
+        reason: `Element id '${currentElement.id}' cannot be changed because the survey and element are no longer drafts`,
+      });
+    });
+  });
+
+  return issues;
+}
+
+export function prepareV3SurveyCreate(
+  document: TV3CreateSurveyBody
+): TV3SurveyPrepareResult<TV3CreateSurveyBody> {
+  return validPreparation(document);
+}
+
+export function prepareV3SurveyCreateInput(input: unknown): TV3SurveyPrepareResult<TV3CreateSurveyBody> {
+  const parsed = ZV3CreateSurveyBody.safeParse(input);
+
+  if (!parsed.success) {
+    return invalidPreparation(formatV3ZodInvalidParams(parsed.error, "data"));
+  }
+
+  return prepareV3SurveyCreate(parsed.data);
+}
+
+export function prepareV3SurveyPatchInput(
+  survey: TInternalSurvey,
+  input: unknown
+): TV3SurveyPrepareResult<TV3SurveyDocument> {
+  const currentDocument = buildDocumentFromSurvey(survey);
+
+  if (!currentDocument.ok) {
+    return currentDocument;
+  }
+
+  const parsedPatch = createZV3PatchSurveyBodySchema(currentDocument.document.defaultLanguage).safeParse(
+    input
+  );
+
+  if (!parsedPatch.success) {
+    return invalidPreparation(formatV3ZodInvalidParams(parsedPatch.error, "data"));
+  }
+
+  const patchedDocument = mergeV3SurveyPatch(currentDocument.document, parsedPatch.data);
+  const immutableElementIdIssues = getImmutableElementIdIssues(currentDocument.document, patchedDocument);
+  if (immutableElementIdIssues.length > 0) {
+    return invalidPreparation(immutableElementIdIssues);
+  }
+
+  return validPreparation(patchedDocument);
+}

apps/web/app/api/v3/surveys/reference-validation.test.ts

@@ -0,0 +1,269 @@
+import { describe, expect, test } from "vitest";
+import { validateV3SurveyReferences } from "./reference-validation";
+import { ZV3CreateSurveyBody } from "./schemas";
+
+const validSurvey = ZV3CreateSurveyBody.parse({
+  workspaceId: "clxx1234567890123456789012",
+  name: "Product Feedback",
+  hiddenFields: {
+    enabled: true,
+    fieldIds: ["account_id"],
+  },
+  variables: [
+    {
+      id: "clvar123456789012345678901",
+      name: "score",
+      type: "number",
+      value: 0,
+    },
+  ],
+  endings: [
+    {
+      id: "clend123456789012345678901",
+      type: "endScreen",
+      headline: { "en-US": "Thanks" },
+    },
+  ],
+  blocks: [
+    {
+      id: "clbk1234567890123456789012",
+      name: "Main Block",
+      logicFallback: "clend123456789012345678901",
+      elements: [
+        {
+          id: "satisfaction",
+          type: "openText",
+          headline: { "en-US": "What should we improve?" },
+          required: true,
+        },
+      ],
+      logic: [
+        {
+          id: "cllog123456789012345678901",
+          conditions: {
+            id: "clgrp123456789012345678901",
+            connector: "and",
+            conditions: [
+              {
+                id: "clcon123456789012345678901",
+                leftOperand: { type: "element", value: "satisfaction" },
+                operator: "isSubmitted",
+              },
+            ],
+          },
+          actions: [
+            {
+              id: "clact123456789012345678901",
+              objective: "calculate",
+              variableId: "clvar123456789012345678901",
+              operator: "add",
+              value: { type: "static", value: 1 },
+            },
+          ],
+        },
+      ],
+    },
+  ],
+});
+
+describe("validateV3SurveyReferences", () => {
+  test("accepts a survey with consistent stable identifiers", () => {
+    expect(
+      validateV3SurveyReferences({
+        blocks: validSurvey.blocks,
+        endings: validSurvey.endings,
+        hiddenFields: validSurvey.hiddenFields,
+        variables: validSurvey.variables,
+      })
+    ).toEqual({ ok: true, invalidParams: [] });
+  });
+
+  test("rejects duplicate block, element, variable, and hidden field identifiers", () => {
+    const survey = {
+      ...validSurvey,
+      hiddenFields: { enabled: true, fieldIds: ["account_id", "account_id"] },
+      variables: [
+        ...validSurvey.variables,
+        {
+          id: "clvar123456789012345678901",
+          name: "score",
+          type: "number" as const,
+          value: 0,
+        },
+      ],
+      blocks: [
+        ...validSurvey.blocks,
+        {
+          ...validSurvey.blocks[0],
+          elements: [{ ...validSurvey.blocks[0].elements[0] }],
+        },
+      ],
+    };
+
+    const result = validateV3SurveyReferences({
+      blocks: survey.blocks,
+      endings: survey.endings,
+      hiddenFields: survey.hiddenFields,
+      variables: survey.variables,
+    });
+
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({ name: "blocks.1.id" }),
+          expect.objectContaining({ name: "blocks.1.elements.0.id" }),
+          expect.objectContaining({ name: "variables.1.id" }),
+          expect.objectContaining({ name: "hiddenFields.fieldIds.1" }),
+        ])
+      );
+    }
+  });
+
+  test("rejects cross-namespace identifier collisions", () => {
+    const result = validateV3SurveyReferences({
+      blocks: validSurvey.blocks,
+      endings: validSurvey.endings,
+      hiddenFields: { enabled: true, fieldIds: ["account_id", "satisfaction"] },
+      variables: [
+        {
+          id: "satisfaction",
+          name: "account_id",
+          type: "number",
+          value: 0,
+        },
+      ],
+    });
+
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({ name: "hiddenFields.fieldIds.1" }),
+          expect.objectContaining({ name: "variables.0.id" }),
+          expect.objectContaining({ name: "variables.0.name" }),
+        ])
+      );
+    }
+  });
+
+  test("reports dangling logic references with actionable paths", () => {
+    const survey = {
+      ...validSurvey,
+      blocks: [
+        {
+          ...validSurvey.blocks[0],
+          logicFallback: "clmiss12345678901234567890",
+          logic: [
+            {
+              ...validSurvey.blocks[0].logic![0],
+              actions: [
+                {
+                  ...validSurvey.blocks[0].logic![0].actions[0],
+                  variableId: "clmiss12345678901234567890",
+                },
+                {
+                  id: "cljmp123456789012345678901",
+                  objective: "jumpToBlock" as const,
+                  target: "clmiss12345678901234567890",
+                },
+              ],
+            },
+          ],
+        },
+      ],
+    };
+
+    const result = validateV3SurveyReferences({
+      blocks: survey.blocks,
+      endings: survey.endings,
+      hiddenFields: survey.hiddenFields,
+      variables: survey.variables,
+    });
+
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({ name: "blocks.0.logicFallback" }),
+          expect.objectContaining({ name: "blocks.0.logic.0.actions.0.variableId" }),
+          expect.objectContaining({ name: "blocks.0.logic.0.actions.1.target" }),
+        ])
+      );
+    }
+  });
+
+  test("reports dangling recall references with actionable paths", () => {
+    const survey = {
+      ...validSurvey,
+      blocks: [
+        {
+          ...validSurvey.blocks[0],
+          elements: [
+            {
+              ...validSurvey.blocks[0].elements[0],
+              headline: {
+                default: "Please explain #recall:missing_id/fallback:your answer#",
+              },
+            },
+          ],
+        },
+      ],
+    };
+
+    const result = validateV3SurveyReferences({
+      blocks: survey.blocks,
+      endings: survey.endings,
+      hiddenFields: survey.hiddenFields,
+      variables: survey.variables,
+    });
+
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            name: "blocks.0.elements.0.headline.default",
+            reason: expect.stringContaining("missing_id"),
+          }),
+        ])
+      );
+    }
+  });
+
+  test("reports dangling recall references in survey-level translatable fields", () => {
+    const result = validateV3SurveyReferences({
+      blocks: validSurvey.blocks,
+      endings: validSurvey.endings,
+      hiddenFields: validSurvey.hiddenFields,
+      metadata: {
+        title: {
+          default: "Metadata #recall:missing_metadata_reference/fallback:value#",
+        },
+      },
+      variables: validSurvey.variables,
+      welcomeCard: {
+        enabled: true,
+        headline: {
+          default: "Welcome #recall:missing_welcome_reference/fallback:there#",
+        },
+      },
+    });
+
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.invalidParams).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            name: "welcomeCard.headline.default",
+            reason: expect.stringContaining("missing_welcome_reference"),
+          }),
+          expect.objectContaining({
+            name: "metadata.title.default",
+            reason: expect.stringContaining("missing_metadata_reference"),
+          }),
+        ])
+      );
+    }
+  });
+});

apps/web/app/api/v3/surveys/reference-validation.ts

@@ -0,0 +1,342 @@
+import type { TSurveyBlocks } from "@formbricks/types/surveys/blocks";
+import type { TConditionGroup, TDynamicLogicFieldValue } from "@formbricks/types/surveys/logic";
+import type { TSurveyEndings, TSurveyHiddenFields, TSurveyVariables } from "@formbricks/types/surveys/types";
+import type { InvalidParam } from "@/app/api/v3/lib/response";
+
+type TReferenceValidationInput = {
+  blocks: TSurveyBlocks;
+  endings: TSurveyEndings;
+  hiddenFields: TSurveyHiddenFields;
+  metadata?: unknown;
+  variables: TSurveyVariables;
+  welcomeCard?: unknown;
+};
+
+type TNamedReference = {
+  id: string;
+  path: string;
+  namespace: "block" | "element" | "ending" | "hiddenField" | "variable" | "variableName";
+};
+
+export class V3SurveyReferenceValidationError extends Error {
+  invalidParams: InvalidParam[];
+
+  constructor(invalidParams: InvalidParam[]) {
+    super("Survey contains invalid references");
+    this.name = "V3SurveyReferenceValidationError";
+    this.invalidParams = invalidParams;
+  }
+}
+
+export type TV3SurveyReferenceValidationResult =
+  | { ok: true; invalidParams: [] }
+  | { ok: false; invalidParams: InvalidParam[] };
+
+function addDuplicateIdIssues(
+  entries: { id: string; path: string }[],
+  label: string,
+  issues: InvalidParam[]
+): void {
+  const firstPathById = new Map<string, string>();
+
+  entries.forEach(({ id, path }) => {
+    const firstPath = firstPathById.get(id);
+    if (firstPath !== undefined) {
+      issues.push({
+        name: path,
+        reason: `${label} id '${id}' is duplicated; first used at ${firstPath}`,
+      });
+      return;
+    }
+
+    firstPathById.set(id, path);
+  });
+}
+
+function addDuplicateValueIssues(
+  values: string[],
+  pathForIndex: (index: number) => string,
+  label: string,
+  issues: InvalidParam[]
+): void {
+  const firstIndexByValue = new Map<string, number>();
+
+  values.forEach((value, index) => {
+    const firstIndex = firstIndexByValue.get(value);
+    if (firstIndex !== undefined) {
+      issues.push({
+        name: pathForIndex(index),
+        reason: `${label} '${value}' is duplicated; first used at ${pathForIndex(firstIndex)}`,
+      });
+      return;
+    }
+
+    firstIndexByValue.set(value, index);
+  });
+}
+
+function addCrossNamespaceCollisionIssues(entries: TNamedReference[], issues: InvalidParam[]): void {
+  const firstEntryById = new Map<string, TNamedReference>();
+
+  entries.forEach((entry) => {
+    const lookupId = entry.id.toLowerCase();
+    const firstEntry = firstEntryById.get(lookupId);
+
+    if (!firstEntry) {
+      firstEntryById.set(lookupId, entry);
+      return;
+    }
+
+    if (firstEntry.namespace === entry.namespace) {
+      return;
+    }
+
+    issues.push({
+      name: entry.path,
+      reason: `${entry.namespace} identifier '${entry.id}' conflicts with ${firstEntry.namespace} identifier at ${firstEntry.path}`,
+    });
+  });
+}
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function addRecallReferenceIssues(
+  value: unknown,
+  path: string,
+  references: {
+    elementIds: Set<string>;
+    variableIds: Set<string>;
+    hiddenFieldIds: Set<string>;
+  },
+  issues: InvalidParam[]
+): void {
+  if (typeof value === "string") {
+    const recallPattern = /#recall:([A-Za-z0-9_-]+)/g;
+
+    for (const match of value.matchAll(recallPattern)) {
+      const recallId = match[1];
+      const isKnownReference =
+        references.elementIds.has(recallId) ||
+        references.variableIds.has(recallId) ||
+        references.hiddenFieldIds.has(recallId);
+
+      if (!isKnownReference) {
+        issues.push({
+          name: path,
+          reason: `Recall reference '${recallId}' is not defined in blocks, variables, or hiddenFields.fieldIds`,
+        });
+      }
+    }
+
+    return;
+  }
+
+  if (Array.isArray(value)) {
+    value.forEach((entry, index) => addRecallReferenceIssues(entry, `${path}.${index}`, references, issues));
+    return;
+  }
+
+  if (!isPlainObject(value)) {
+    return;
+  }
+
+  Object.entries(value).forEach(([key, entry]) => {
+    addRecallReferenceIssues(entry, path ? `${path}.${key}` : key, references, issues);
+  });
+}
+
+function validateDynamicOperand(
+  operand: TDynamicLogicFieldValue,
+  path: string,
+  references: {
+    elementIds: Set<string>;
+    variableIds: Set<string>;
+    hiddenFieldIds: Set<string>;
+  },
+  issues: InvalidParam[]
+): void {
+  if (operand.type === "element" && !references.elementIds.has(operand.value)) {
+    issues.push({
+      name: `${path}.value`,
+      reason: `Element id '${operand.value}' is not defined in blocks`,
+    });
+  }
+
+  if (operand.type === "variable" && !references.variableIds.has(operand.value)) {
+    issues.push({
+      name: `${path}.value`,
+      reason: `Variable id '${operand.value}' is not defined in variables`,
+    });
+  }
+
+  if (operand.type === "hiddenField" && !references.hiddenFieldIds.has(operand.value)) {
+    issues.push({
+      name: `${path}.value`,
+      reason: `Hidden field id '${operand.value}' is not defined in hiddenFields.fieldIds`,
+    });
+  }
+}
+
+function validateConditionGroup(
+  conditionGroup: TConditionGroup,
+  path: string,
+  references: {
+    elementIds: Set<string>;
+    variableIds: Set<string>;
+    hiddenFieldIds: Set<string>;
+  },
+  issues: InvalidParam[]
+): void {
+  conditionGroup.conditions.forEach((condition, index) => {
+    const conditionPath = `${path}.conditions.${index}`;
+
+    if ("conditions" in condition) {
+      validateConditionGroup(condition, conditionPath, references, issues);
+      return;
+    }
+
+    validateDynamicOperand(condition.leftOperand, `${conditionPath}.leftOperand`, references, issues);
+
+    if (condition.rightOperand?.type && condition.rightOperand.type !== "static") {
+      validateDynamicOperand(condition.rightOperand, `${conditionPath}.rightOperand`, references, issues);
+    }
+  });
+}
+
+export function getV3SurveyReferenceInvalidParams(input: TReferenceValidationInput): InvalidParam[] {
+  const issues: InvalidParam[] = [];
+  const blockIds = input.blocks.map((block) => block.id);
+  const blockEntries = input.blocks.map((block, index) => ({
+    id: block.id,
+    path: `blocks.${index}.id`,
+  }));
+  const endingIds = input.endings.map((ending) => ending.id);
+  const endingEntries = input.endings.map((ending, index) => ({
+    id: ending.id,
+    path: `endings.${index}.id`,
+  }));
+  const elementEntries = input.blocks.flatMap((block, blockIndex) =>
+    block.elements.map((element, elementIndex) => ({
+      id: element.id,
+      path: `blocks.${blockIndex}.elements.${elementIndex}.id`,
+    }))
+  );
+  const elementIds = elementEntries.map((element) => element.id);
+  const hiddenFieldIds = input.hiddenFields.fieldIds ?? [];
+  const hiddenFieldEntries = hiddenFieldIds.map((id, index) => ({
+    id,
+    path: `hiddenFields.fieldIds.${index}`,
+  }));
+  const variableIds = input.variables.map((variable) => variable.id);
+  const variableIdEntries = variableIds.map((id, index) => ({
+    id,
+    path: `variables.${index}.id`,
+  }));
+  const variableNames = input.variables.map((variable) => variable.name);
+  const variableNameEntries = variableNames.map((id, index) => ({
+    id,
+    path: `variables.${index}.name`,
+  }));
+  const navigationTargetIds = new Set([...blockIds, ...endingIds]);
+  const references = {
+    elementIds: new Set(elementIds),
+    variableIds: new Set(variableIds),
+    hiddenFieldIds: new Set(hiddenFieldIds),
+  };
+
+  addDuplicateIdIssues(blockEntries, "Block", issues);
+  addDuplicateIdIssues(elementEntries, "Element", issues);
+  addDuplicateIdIssues(variableIdEntries, "Variable", issues);
+  addDuplicateValueIssues(
+    hiddenFieldIds,
+    (index) => `hiddenFields.fieldIds.${index}`,
+    "Hidden field id",
+    issues
+  );
+  addDuplicateValueIssues(variableNames, (index) => `variables.${index}.name`, "Variable name", issues);
+  addCrossNamespaceCollisionIssues(
+    [
+      ...blockEntries.map((entry) => ({ ...entry, namespace: "block" as const })),
+      ...elementEntries.map((entry) => ({ ...entry, namespace: "element" as const })),
+      ...endingEntries.map((entry) => ({ ...entry, namespace: "ending" as const })),
+      ...hiddenFieldEntries.map((entry) => ({ ...entry, namespace: "hiddenField" as const })),
+      ...variableIdEntries.map((entry) => ({ ...entry, namespace: "variable" as const })),
+      ...variableNameEntries.map((entry) => ({ ...entry, namespace: "variableName" as const })),
+    ],
+    issues
+  );
+
+  input.blocks.forEach((block, blockIndex) => {
+    if (block.logicFallback && !navigationTargetIds.has(block.logicFallback)) {
+      issues.push({
+        name: `blocks.${blockIndex}.logicFallback`,
+        reason: `Logic fallback target '${block.logicFallback}' is not defined in blocks or endings`,
+      });
+    }
+
+    block.logic?.forEach((logic, logicIndex) => {
+      const logicPath = `blocks.${blockIndex}.logic.${logicIndex}`;
+      validateConditionGroup(logic.conditions, `${logicPath}.conditions`, references, issues);
+
+      logic.actions.forEach((action, actionIndex) => {
+        const actionPath = `${logicPath}.actions.${actionIndex}`;
+
+        if (action.objective === "calculate") {
+          if (!references.variableIds.has(action.variableId)) {
+            issues.push({
+              name: `${actionPath}.variableId`,
+              reason: `Variable id '${action.variableId}' is not defined in variables`,
+            });
+          }
+
+          if (action.value.type !== "static") {
+            validateDynamicOperand(action.value, `${actionPath}.value`, references, issues);
+          }
+        }
+
+        if (action.objective === "requireAnswer" && !references.elementIds.has(action.target)) {
+          issues.push({
+            name: `${actionPath}.target`,
+            reason: `Element id '${action.target}' is not defined in blocks`,
+          });
+        }
+
+        if (action.objective === "jumpToBlock" && !navigationTargetIds.has(action.target)) {
+          issues.push({
+            name: `${actionPath}.target`,
+            reason: `Jump target '${action.target}' is not defined in blocks or endings`,
+          });
+        }
+      });
+    });
+  });
+
+  addRecallReferenceIssues(input.blocks, "blocks", references, issues);
+  addRecallReferenceIssues(input.endings, "endings", references, issues);
+  addRecallReferenceIssues(input.welcomeCard, "welcomeCard", references, issues);
+  addRecallReferenceIssues(input.metadata, "metadata", references, issues);
+
+  return issues;
+}
+
+export function validateV3SurveyReferences(
+  input: TReferenceValidationInput
+): TV3SurveyReferenceValidationResult {
+  const invalidParams = getV3SurveyReferenceInvalidParams(input);
+
+  if (invalidParams.length > 0) {
+    return { ok: false, invalidParams };
+  }
+
+  return { ok: true, invalidParams: [] };
+}
+
+export function assertValidV3SurveyReferences(input: TReferenceValidationInput): void {
+  const result = validateV3SurveyReferences(input);
+
+  if (!result.ok) {
+    throw new V3SurveyReferenceValidationError(result.invalidParams);
+  }
+}

apps/web/app/api/v3/surveys/route.test.ts

@@ -50,6 +50,10 @@ vi.mock("@/modules/survey/list/lib/survey", async (importOriginal) => {
   };
 });
 
+vi.mock("./create", () => ({
+  createV3Survey: vi.fn(),
+}));
+
 vi.mock("@formbricks/logger", () => ({
   logger: {
     withContext: vi.fn(() => ({

apps/web/app/api/v3/surveys/route.ts

@@ -1,5 +1,5 @@
 /**
- * GET /api/v3/surveys — list surveys for a workspace.
+ * /api/v3/surveys — list and create block-based survey management resources.
  * Session cookie or x-api-key; scope by workspaceId only.
  */
 import { logger } from "@formbricks/logger";
@@ -7,6 +7,7 @@ import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/errors";
 import { withV3ApiWrapper } from "@/app/api/v3/lib/api-wrapper";
 import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
 import {
+  createdResponse,
   problemBadRequest,
   problemForbidden,
   problemInternalError,
@@ -14,8 +15,15 @@ import {
 } from "@/app/api/v3/lib/response";
 import { getSurveyCount } from "@/modules/survey/list/lib/survey";
 import { getSurveyListPage } from "@/modules/survey/list/lib/survey-page";
+import { V3SurveyCreatePermissionError, createV3Survey } from "./create";
 import { parseV3SurveysListQuery } from "./parse-v3-surveys-list-query";
-import { serializeV3SurveyListItem } from "./serializers";
+import { V3SurveyReferenceValidationError } from "./reference-validation";
+import { ZV3CreateSurveyBody } from "./schemas";
+import {
+  V3SurveyUnsupportedShapeError,
+  serializeV3SurveyListItem,
+  serializeV3SurveyResource,
+} from "./serializers";
 
 export const GET = withV3ApiWrapper({
   auth: "both",
@@ -80,3 +88,81 @@ export const GET = withV3ApiWrapper({
     }
   },
 });
+
+export const POST = withV3ApiWrapper({
+  auth: "both",
+  schemas: {
+    body: ZV3CreateSurveyBody,
+  },
+  action: "created",
+  targetType: "survey",
+  handler: async ({ authentication, auditLog, parsedInput, requestId, instance }) => {
+    const { body } = parsedInput;
+    const log = logger.withContext({ requestId, workspaceId: body.workspaceId });
+
+    try {
+      const authResult = await requireV3WorkspaceAccess(
+        authentication,
+        body.workspaceId,
+        "readWrite",
+        requestId,
+        instance
+      );
+      if (authResult instanceof Response) {
+        return authResult;
+      }
+
+      const survey = await createV3Survey(
+        {
+          ...body,
+          workspaceId: authResult.workspaceId,
+        },
+        authentication,
+        requestId,
+        authResult.organizationId
+      );
+      const resource = serializeV3SurveyResource(survey);
+
+      if (auditLog) {
+        auditLog.organizationId = authResult.organizationId;
+        auditLog.targetId = survey.id;
+        auditLog.newObject = resource;
+      }
+
+      return createdResponse(resource, {
+        requestId,
+        location: `/api/v3/surveys/${survey.id}`,
+      });
+    } catch (err) {
+      if (err instanceof V3SurveyReferenceValidationError) {
+        log.warn({ statusCode: 400, invalidParams: err.invalidParams }, "Survey reference validation failed");
+        return problemBadRequest(requestId, "Invalid survey references", {
+          invalid_params: err.invalidParams,
+          instance,
+        });
+      }
+      if (err instanceof V3SurveyUnsupportedShapeError) {
+        log.warn({ statusCode: 400, errorCode: err.name }, "Unsupported survey shape");
+        return problemBadRequest(requestId, err.message, {
+          invalid_params: [{ name: "body", reason: err.message }],
+          instance,
+        });
+      }
+      if (err instanceof V3SurveyCreatePermissionError) {
+        log.warn({ statusCode: 403, errorCode: err.name }, "Survey create permission check failed");
+        return problemForbidden(requestId, err.message, instance);
+      }
+      if (err instanceof ResourceNotFoundError) {
+        log.warn({ statusCode: 403, errorCode: err.name }, "Resource not found");
+        return problemForbidden(requestId, "You are not authorized to access this resource", instance);
+      }
+      if (err instanceof DatabaseError) {
+        log.error({ error: err, statusCode: 500 }, "Database error");
+        return problemInternalError(requestId, "An unexpected error occurred.", instance);
+      }
+
+      log.error({ error: err, statusCode: 500 }, "V3 survey create unexpected error");
+      return problemInternalError(requestId, "An unexpected error occurred.", instance);
+    }
+  },
+});

apps/web/app/api/v3/surveys/schemas.test.ts

@@ -0,0 +1,403 @@
+import { describe, expect, test } from "vitest";
+import { ZV3CreateSurveyBody, ZV3PatchSurveyBody, createZV3PatchSurveyBodySchema } from "./schemas";
+
+const validCreateBody = {
+  workspaceId: "clxx1234567890123456789012",
+  name: "Product Feedback",
+  blocks: [
+    {
+      id: "clbk1234567890123456789012",
+      name: "Main Block",
+      elements: [
+        {
+          id: "satisfaction",
+          type: "openText",
+          headline: { "en-US": "What should we improve?" },
+          required: true,
+        },
+      ],
+    },
+  ],
+};
+
+describe("ZV3CreateSurveyBody", () => {
+  test("accepts a valid block-based create body and applies public defaults", () => {
+    const parsed = ZV3CreateSurveyBody.parse(validCreateBody);
+
+    expect(parsed).toMatchObject({
+      workspaceId: validCreateBody.workspaceId,
+      name: "Product Feedback",
+      type: "link",
+      status: "draft",
+      metadata: {},
+      defaultLanguage: "en-US",
+      languages: [],
+      welcomeCard: { enabled: false },
+      endings: [],
+      hiddenFields: { enabled: false },
+      variables: [],
+    });
+    expect(parsed.blocks[0].elements[0]).toMatchObject({
+      headline: { default: "What should we improve?" },
+    });
+  });
+
+  test("normalizes locale maps and language codes before shared survey validation", () => {
+    const parsed = ZV3CreateSurveyBody.parse({
+      ...validCreateBody,
+      defaultLanguage: "en_us",
+      languages: [{ code: "de_de" }],
+      welcomeCard: {
+        enabled: true,
+        headline: { en_us: "Welcome", de_de: "Willkommen" },
+      },
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              headline: { en_us: "Hello", de_de: "Hallo" },
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(parsed.defaultLanguage).toBe("en-US");
+    expect(parsed.languages).toEqual([{ code: "de-DE", enabled: true }]);
+    expect(parsed.welcomeCard).toMatchObject({
+      headline: { default: "Welcome", "de-DE": "Willkommen" },
+    });
+    expect(parsed.blocks[0].elements[0]).toMatchObject({
+      headline: { default: "Hello", "de-DE": "Hallo" },
+    });
+  });
+
+  test("rejects an invalid defaultLanguage instead of silently defaulting", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      defaultLanguage: "not a locale",
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toContain("defaultLanguage");
+  });
+
+  test("rejects duplicate locale keys after normalization", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              headline: { "en-US": "Hello", en_us: "Duplicate" },
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toContain(
+      "blocks.0.elements.0.headline.en_us"
+    );
+  });
+
+  test("rejects unsupported top-level fields instead of silently ignoring them", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      questions: [],
+      styling: {},
+      createdBy: "user_1",
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toEqual(
+      expect.arrayContaining(["questions", "styling", "createdBy"])
+    );
+  });
+
+  test("rejects unsupported nested fields instead of stripping them", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          targeting: {},
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              analytics: {},
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toEqual(
+      expect.arrayContaining(["blocks.0.targeting", "blocks.0.elements.0.analytics"])
+    );
+  });
+
+  test("rejects element fields that do not belong to the selected element type", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              buttonUrl: "https://example.com",
+              scale: "star",
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toContain(
+      "blocks.0.elements.0.buttonUrl"
+    );
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toContain("blocks.0.elements.0.scale");
+    expect(
+      result.error?.issues.find((issue) => issue.path.join(".") === "blocks.0.elements.0.buttonUrl")
+    ).toMatchObject({
+      message: expect.stringContaining("element type 'openText'"),
+    });
+  });
+
+  test("rejects choice fields that do not belong to the selected element type", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              id: "choices",
+              type: "multipleChoiceSingle",
+              headline: { "en-US": "Pick one" },
+              required: true,
+              choices: [
+                { id: "choice_1", label: { "en-US": "A" }, imageUrl: "https://example.com/a.png" },
+                { id: "choice_2", label: { "en-US": "B" } },
+              ],
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toContain(
+      "blocks.0.elements.0.choices.0.imageUrl"
+    );
+    expect(
+      result.error?.issues.find((issue) => issue.path.join(".") === "blocks.0.elements.0.choices.0.imageUrl")
+    ).toMatchObject({
+      message: expect.stringContaining("Allowed fields: id, label"),
+    });
+  });
+
+  test("does not rewrite locale-shaped objects in logic metadata", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+            },
+          ],
+          logic: [
+            {
+              id: "cllog123456789012345678901",
+              conditions: {
+                id: "clgrp123456789012345678901",
+                connector: "and",
+                conditions: [
+                  {
+                    id: "clcon123456789012345678901",
+                    leftOperand: {
+                      type: "element",
+                      value: "satisfaction",
+                      meta: { "en-US": "metadata" },
+                    },
+                    operator: "isSubmitted",
+                  },
+                ],
+              },
+              actions: [
+                {
+                  id: "clact123456789012345678901",
+                  objective: "requireAnswer",
+                  target: "satisfaction",
+                },
+              ],
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(true);
+    if (!result.success) {
+      throw new Error("Expected schema validation to pass");
+    }
+    expect(result.data.blocks[0].logic?.[0].conditions.conditions[0]).toMatchObject({
+      leftOperand: {
+        meta: { "en-US": "metadata" },
+      },
+    });
+  });
+
+  test("rejects the internal default translation key in public v3 input", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              headline: { default: "Internal key should not be public" },
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues[0].path.join(".")).toBe("blocks.0.elements.0.headline.default");
+  });
+
+  test("preserves arbitrary metadata while normalizing known translatable metadata fields", () => {
+    const parsed = ZV3CreateSurveyBody.parse({
+      ...validCreateBody,
+      metadata: {
+        cx_context: {
+          "de-DE": "This is arbitrary customer metadata, not translation content",
+        },
+        title: {
+          "en-US": "Feedback Survey",
+          "de-DE": "Feedback-Umfrage",
+        },
+      },
+    });
+
+    expect(parsed.metadata).toMatchObject({
+      cx_context: {
+        "de-DE": "This is arbitrary customer metadata, not translation content",
+      },
+      title: {
+        default: "Feedback Survey",
+        "de-DE": "Feedback-Umfrage",
+      },
+    });
+  });
+
+  test("rejects non-link survey types for this survey-template endpoint", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      type: "app",
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues[0].path).toEqual(["type"]);
+  });
+
+  test("rejects malformed locale maps that do not include the default language", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      blocks: [
+        {
+          ...validCreateBody.blocks[0],
+          elements: [
+            {
+              ...validCreateBody.blocks[0].elements[0],
+              headline: { "not a locale": "Hello" },
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(result.success).toBe(false);
+  });
+
+  test("rejects duplicate language entries and disabled default language", () => {
+    const result = ZV3CreateSurveyBody.safeParse({
+      ...validCreateBody,
+      languages: [{ code: "en-US", enabled: false }, { code: "en_us" }],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toEqual(
+      expect.arrayContaining(["languages.0.enabled", "languages.1.code"])
+    );
+  });
+});
+
+describe("ZV3PatchSurveyBody", () => {
+  test("accepts a strict top-level partial and preserves omitted defaults", () => {
+    const parsed = ZV3PatchSurveyBody.parse({
+      name: "Updated survey",
+    });
+
+    expect(parsed).toEqual({ name: "Updated survey" });
+  });
+
+  test("rejects an empty patch body", () => {
+    const result = ZV3PatchSurveyBody.safeParse({});
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues[0]).toMatchObject({
+      message: "Request body must include at least one updatable field",
+    });
+  });
+
+  test("rejects immutable and out-of-scope fields", () => {
+    const result = ZV3PatchSurveyBody.safeParse({
+      id: "clsv1234567890123456789012",
+      workspaceId: "clxx1234567890123456789012",
+      type: "link",
+      questions: [],
+    });
+
+    expect(result.success).toBe(false);
+    expect(result.error?.issues.map((issue) => issue.path.join("."))).toEqual(
+      expect.arrayContaining(["id", "workspaceId", "type", "questions"])
+    );
+  });
+
+  test("normalizes patch translation maps using the current default language", () => {
+    const parsed = createZV3PatchSurveyBodySchema("de-DE").parse({
+      blocks: [
+        {
+          id: "clbk1234567890123456789012",
+          name: "Main Block",
+          elements: [
+            {
+              id: "satisfaction",
+              type: "openText",
+              headline: { de_de: "Hallo", en_us: "Hello" },
+              required: true,
+            },
+          ],
+        },
+      ],
+    });
+
+    expect(parsed.blocks?.[0].elements[0]).toMatchObject({
+      headline: { default: "Hallo", "en-US": "Hello" },
+    });
+    expect(parsed).not.toHaveProperty("defaultLanguage");
+  });
+});

apps/web/app/api/v3/surveys/serializers.test.ts

@@ -0,0 +1,274 @@
+import { describe, expect, test } from "vitest";
+import type { TSurvey } from "@formbricks/types/surveys/types";
+import { V3SurveyUnsupportedShapeError, serializeV3SurveyResource } from "./serializers";
+
+const baseSurvey = {
+  id: "survey_1",
+  workspaceId: "workspace_1",
+  createdAt: new Date("2026-04-21T10:00:00.000Z"),
+  updatedAt: new Date("2026-04-21T11:00:00.000Z"),
+  name: "Product Feedback",
+  type: "link",
+  status: "draft",
+  metadata: { cx: "enterprise" },
+  languages: [
+    {
+      default: true,
+      enabled: true,
+      language: { id: "lang_1", code: "en-US", alias: "en", createdAt: new Date(), updatedAt: new Date() },
+    },
+    {
+      default: false,
+      enabled: true,
+      language: { id: "lang_2", code: "de-DE", alias: "de", createdAt: new Date(), updatedAt: new Date() },
+    },
+    {
+      default: false,
+      enabled: false,
+      language: { id: "lang_3", code: "fr-FR", alias: "fr", createdAt: new Date(), updatedAt: new Date() },
+    },
+  ],
+  questions: [],
+  welcomeCard: {
+    enabled: true,
+    headline: { default: "Welcome", "de-DE": "Willkommen", "fr-FR": "Bienvenue" },
+  },
+  blocks: [
+    {
+      id: "block_1",
+      name: "Intro",
+      elements: [
+        {
+          id: "satisfaction",
+          type: "openText",
+          headline: { default: "What should we improve?", "de-DE": "Was sollen wir verbessern?" },
+          subheader: { default: "Tell us more" },
+          required: true,
+        },
+      ],
+    },
+  ],
+  endings: [],
+  hiddenFields: { enabled: false, fieldIds: [] },
+  variables: [],
+} as unknown as TSurvey;
+
+describe("serializeV3SurveyResource", () => {
+  test("returns canonical multilingual fields using real locale codes", () => {
+    const resource = serializeV3SurveyResource(baseSurvey);
+
+    expect(resource.defaultLanguage).toBe("en-US");
+    expect(resource).not.toHaveProperty("language");
+    expect(resource.languages).toEqual([
+      { code: "en-US", default: true, enabled: true },
+      { code: "de-DE", default: false, enabled: true },
+      { code: "fr-FR", default: false, enabled: false },
+    ]);
+    expect(resource).toMatchObject({
+      welcomeCard: {
+        headline: {
+          "en-US": "Welcome",
+          "de-DE": "Willkommen",
+          "fr-FR": "Bienvenue",
+        },
+      },
+    });
+    expect(resource).toMatchObject({
+      blocks: [
+        {
+          elements: [
+            {
+              headline: {
+                "en-US": "What should we improve?",
+                "de-DE": "Was sollen wir verbessern?",
+              },
+            },
+          ],
+        },
+      ],
+    });
+  });
+
+  test("does not expose the internal default pseudo-locale for surveys without configured languages", () => {
+    const survey = {
+      ...baseSurvey,
+      languages: [],
+      welcomeCard: {
+        enabled: true,
+        headline: { default: "Welcome" },
+      },
+      blocks: [
+        {
+          id: "block_1",
+          name: "Intro",
+          elements: [
+            {
+              id: "satisfaction",
+              type: "openText",
+              headline: { default: "What should we improve?" },
+              required: true,
+            },
+          ],
+        },
+      ],
+    } as unknown as TSurvey;
+
+    const resource = serializeV3SurveyResource(survey);
+
+    expect(resource.defaultLanguage).toBe("en-US");
+    expect(resource.languages).toEqual([{ code: "en-US", default: true, enabled: true }]);
+    expect(resource).toMatchObject({
+      welcomeCard: { headline: { "en-US": "Welcome" } },
+      blocks: [
+        {
+          elements: [
+            {
+              headline: { "en-US": "What should we improve?" },
+            },
+          ],
+        },
+      ],
+    });
+  });
+
+  test("filters the implicit default language for surveys without configured languages", () => {
+    const survey = {
+      ...baseSurvey,
+      languages: [],
+      welcomeCard: {
+        enabled: true,
+        headline: { default: "Welcome" },
+      },
+    } as unknown as TSurvey;
+
+    const resource = serializeV3SurveyResource(survey, { lang: ["en"] });
+
+    expect(resource).not.toHaveProperty("language");
+    expect(resource).toMatchObject({ welcomeCard: { headline: { "en-US": "Welcome" } } });
+  });
+
+  test("preserves stored locale variants when their keys use non-canonical casing or separators", () => {
+    const survey = {
+      ...baseSurvey,
+      welcomeCard: {
+        enabled: true,
+        headline: { default: "Welcome", de_de: "Willkommen" },
+      },
+    } as unknown as TSurvey;
+
+    const resource = serializeV3SurveyResource(survey);
+
+    expect(resource).toMatchObject({
+      welcomeCard: {
+        headline: {
+          "en-US": "Welcome",
+          "de-DE": "Willkommen",
+        },
+      },
+    });
+  });
+
+  test("filters fields for case-insensitive underscore language selectors while preserving maps", () => {
+    const resource = serializeV3SurveyResource(baseSurvey, { lang: ["DE_de"] });
+
+    expect(resource).not.toHaveProperty("language");
+    expect(resource).toMatchObject({
+      welcomeCard: { headline: { "de-DE": "Willkommen" } },
+      blocks: [
+        {
+          elements: [
+            {
+              headline: { "de-DE": "Was sollen wir verbessern?" },
+              subheader: { "de-DE": "Tell us more" },
+            },
+          ],
+        },
+      ],
+    });
+  });
+
+  test("resolves language-only selectors against configured survey languages", () => {
+    const resource = serializeV3SurveyResource(baseSurvey, { lang: ["de"] });
+
+    expect(resource).toMatchObject({ welcomeCard: { headline: { "de-DE": "Willkommen" } } });
+  });
+
+  test("filters disabled configured languages for management reads", () => {
+    const resource = serializeV3SurveyResource(baseSurvey, { lang: ["fr"] });
+
+    expect(resource).toMatchObject({ welcomeCard: { headline: { "fr-FR": "Bienvenue" } } });
+  });
+
+  test("filters multiple requested languages while preserving maps", () => {
+    const resource = serializeV3SurveyResource(baseSurvey, { lang: ["en-US", "de"] });
+
+    expect(resource).not.toHaveProperty("language");
+    expect(resource).toMatchObject({
+      welcomeCard: {
+        headline: {
+          "en-US": "Welcome",
+          "de-DE": "Willkommen",
+        },
+      },
+      blocks: [
+        {
+          elements: [
+            {
+              headline: {
+                "en-US": "What should we improve?",
+                "de-DE": "Was sollen wir verbessern?",
+              },
+            },
+          ],
+        },
+      ],
+    });
+  });
+
+  test("rejects ambiguous language-only selectors", () => {
+    const survey = {
+      ...baseSurvey,
+      languages: [
+        {
+          default: true,
+          enabled: true,
+          language: {
+            id: "lang_1",
+            code: "pt-BR",
+            alias: "br",
+            createdAt: new Date(),
+            updatedAt: new Date(),
+          },
+        },
+        {
+          default: false,
+          enabled: true,
+          language: {
+            id: "lang_2",
+            code: "pt-PT",
+            alias: "pt",
+            createdAt: new Date(),
+            updatedAt: new Date(),
+          },
+        },
+      ],
+    } as unknown as TSurvey;
+
+    expect(() => serializeV3SurveyResource(survey, { lang: ["pt"] })).toThrow(
+      "Language 'pt' is ambiguous for this survey; use one of pt-BR, pt-PT"
+    );
+  });
+
+  test("rejects legacy question-based survey shapes instead of returning an incomplete block resource", () => {
+    const survey = {
+      ...baseSurvey,
+      questions: [{ id: "legacy_question", type: "openText", headline: { default: "Legacy question" } }],
+      blocks: [],
+    } as unknown as TSurvey;
+
+    expect(() => serializeV3SurveyResource(survey)).toThrow(V3SurveyUnsupportedShapeError);
+    expect(() => serializeV3SurveyResource(survey)).toThrow(
+      "Legacy question-based surveys are not supported by the v3 survey management API"
+    );
+  });
+});

apps/web/app/api/v3/surveys/serializers.ts

@@ -1,13 +1,170 @@
-import type { TSurvey } from "@/modules/survey/list/types/surveys";
+import type { TSurvey as TInternalSurvey } from "@formbricks/types/surveys/types";
+import type { TSurvey as TSurveyListRecord } from "@/modules/survey/list/types/surveys";
+import {
+  type TV3SurveyLanguage,
+  getV3SurveyDefaultLanguage,
+  getV3SurveyLanguages,
+  normalizeV3SurveyLanguageTag,
+  resolveV3SurveyLanguageCode,
+} from "./language";
 
-export type TV3SurveyListItem = Omit<TSurvey, "singleUse">;
+export type TV3SurveyListItem = Omit<TSurveyListRecord, "singleUse">;
+const DEFAULT_V3_SURVEY_LANGUAGE = "en-US";
+
+type TSerializedValue =
+  | string
+  | number
+  | boolean
+  | null
+  | TSerializedValue[]
+  | { [key: string]: TSerializedValue };
+
+export class V3SurveyLanguageError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = "V3SurveyLanguageError";
+  }
+}
+
+export class V3SurveyUnsupportedShapeError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = "V3SurveyUnsupportedShapeError";
+  }
+}
 
 /**
  * Keep the v3 API contract isolated from internal persistence naming.
  * Surveys are scoped by workspaceId.
  */
-export function serializeV3SurveyListItem(survey: TSurvey): TV3SurveyListItem {
+export function serializeV3SurveyListItem(survey: TSurveyListRecord): TV3SurveyListItem {
   const { singleUse: _omitSingleUse, ...rest } = survey;
 
   return rest;
 }
+
+function toIsoString(value: Date | string): string {
+  return value instanceof Date ? value.toISOString() : new Date(value).toISOString();
+}
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function isI18nString(value: unknown): value is Record<string, string> {
+  return (
+    isPlainObject(value) &&
+    typeof value.default === "string" &&
+    Object.values(value).every((entry) => typeof entry === "string")
+  );
+}
+
+function getI18nValueForLanguage(value: Record<string, string>, languageCode: string): string | undefined {
+  if (typeof value[languageCode] === "string") {
+    return value[languageCode];
+  }
+
+  const matchingKey = Object.keys(value).find(
+    (key) => normalizeV3SurveyLanguageTag(key)?.toLowerCase() === languageCode.toLowerCase()
+  );
+  return matchingKey ? value[matchingKey] : undefined;
+}
+
+function serializeCanonicalValue(
+  value: unknown,
+  defaultLanguage: string,
+  languageCodes: Set<string>,
+  options?: { fallbackMissingTranslations?: boolean }
+): TSerializedValue {
+  if (isI18nString(value)) {
+    const result: Record<string, string> = {
+      [defaultLanguage]: value.default,
+    };
+
+    for (const languageCode of languageCodes) {
+      const translatedValue = getI18nValueForLanguage(value, languageCode);
+      if (languageCode !== defaultLanguage) {
+        if (translatedValue !== undefined) {
+          result[languageCode] = translatedValue;
+        } else if (options?.fallbackMissingTranslations) {
+          result[languageCode] = value.default;
+        }
+      }
+    }
+
+    if (!languageCodes.has(defaultLanguage)) {
+      delete result[defaultLanguage];
+    }
+
+    return result;
+  }
+
+  if (Array.isArray(value)) {
+    return value.map((entry) => serializeCanonicalValue(entry, defaultLanguage, languageCodes, options));
+  }
+
+  if (isPlainObject(value)) {
+    return Object.fromEntries(
+      Object.entries(value).map(([key, entry]) => [
+        key,
+        serializeCanonicalValue(entry, defaultLanguage, languageCodes, options),
+      ])
+    );
+  }
+
+  return value as TSerializedValue;
+}
+
+function resolveRequestedLanguage(languages: TV3SurveyLanguage[], language: string): string {
+  const result = resolveV3SurveyLanguageCode(language, languages);
+
+  if (!result.ok) {
+    throw new V3SurveyLanguageError(result.message);
+  }
+
+  return result.code;
+}
+
+function resolveRequestedLanguages(languages: TV3SurveyLanguage[], requestedLanguages?: string[]): string[] {
+  if (!requestedLanguages) {
+    return [];
+  }
+
+  return requestedLanguages.map((language) => resolveRequestedLanguage(languages, language));
+}
+
+export function serializeV3SurveyResource(survey: TInternalSurvey, options?: { lang?: string[] }) {
+  if (Array.isArray(survey.questions) && survey.questions.length > 0) {
+    throw new V3SurveyUnsupportedShapeError(
+      "Legacy question-based surveys are not supported by the v3 survey management API"
+    );
+  }
+
+  const defaultLanguage = getV3SurveyDefaultLanguage(survey, DEFAULT_V3_SURVEY_LANGUAGE);
+  const languages = getV3SurveyLanguages(survey, DEFAULT_V3_SURVEY_LANGUAGE);
+  const configuredLanguageCodes = new Set(languages.map((language) => language.code));
+  const requestedLanguages = resolveRequestedLanguages(languages, options?.lang);
+  const languageCodes = requestedLanguages.length > 0 ? new Set(requestedLanguages) : configuredLanguageCodes;
+  const serializeValue = (value: unknown) =>
+    serializeCanonicalValue(value, defaultLanguage, languageCodes, {
+      fallbackMissingTranslations: requestedLanguages.length > 0,
+    });
+
+  return {
+    id: survey.id,
+    workspaceId: survey.workspaceId,
+    createdAt: toIsoString(survey.createdAt),
+    updatedAt: toIsoString(survey.updatedAt),
+    name: survey.name,
+    type: survey.type,
+    status: survey.status,
+    metadata: survey.metadata,
+    defaultLanguage,
+    languages,
+    welcomeCard: serializeValue(survey.welcomeCard),
+    blocks: serializeValue(survey.blocks),
+    endings: serializeValue(survey.endings),
+    hiddenFields: survey.hiddenFields,
+    variables: survey.variables,
+  };
+}

apps/web/app/api/v3/surveys/validate/route.ts

@@ -0,0 +1,108 @@
+import { z } from "zod";
+import { logger } from "@formbricks/logger";
+import { DatabaseError } from "@formbricks/types/errors";
+import { withV3ApiWrapper } from "@/app/api/v3/lib/api-wrapper";
+import { requireV3WorkspaceAccess } from "@/app/api/v3/lib/auth";
+import { problemInternalError, successResponse } from "@/app/api/v3/lib/response";
+import { getAuthorizedV3Survey } from "../authorization";
+import {
+  type TV3SurveyPrepareResult,
+  prepareV3SurveyCreateInput,
+  prepareV3SurveyPatchInput,
+} from "../prepare";
+import { type TV3SurveyDocument, ZV3EmptyQuery, ZV3SurveyValidationRequestBody } from "../schemas";
+
+const createWorkspaceSchema = z.object({
+  workspaceId: z.cuid2(),
+});
+
+function serializeValidationResult<TDocument extends TV3SurveyDocument>(
+  operation: "create" | "patch",
+  preparation: TV3SurveyPrepareResult<TDocument>
+) {
+  if (!preparation.ok) {
+    return {
+      valid: false,
+      operation,
+      invalid_params: preparation.validation.invalidParams,
+    };
+  }
+
+  return {
+    valid: true,
+    operation,
+    invalid_params: [],
+    languages: preparation.languageRequests.map((languageRequest) => ({
+      ...languageRequest,
+      writeBehavior: "connect_or_create" as const,
+    })),
+  };
+}
+
+export const POST = withV3ApiWrapper({
+  auth: "both",
+  schemas: {
+    body: ZV3SurveyValidationRequestBody,
+    query: ZV3EmptyQuery,
+  },
+  handler: async ({ parsedInput, authentication, requestId, instance }) => {
+    const { body } = parsedInput;
+    const log = logger.withContext({ requestId, operation: body.operation });
+
+    try {
+      if (body.operation === "create") {
+        const workspaceResult = createWorkspaceSchema.safeParse(body.data);
+        if (workspaceResult.success) {
+          const authResult = await requireV3WorkspaceAccess(
+            authentication,
+            workspaceResult.data.workspaceId,
+            "readWrite",
+            requestId,
+            instance
+          );
+
+          if (authResult instanceof Response) {
+            return authResult;
+          }
+        }
+
+        return successResponse(serializeValidationResult("create", prepareV3SurveyCreateInput(body.data)), {
+          requestId,
+          cache: "private, no-store",
+        });
+      }
+
+      const { survey, response } = await getAuthorizedV3Survey({
+        surveyId: body.surveyId,
+        authentication,
+        access: "readWrite",
+        requestId,
+        instance,
+      });
+
+      if (response) {
+        log.warn(
+          { statusCode: response.status, surveyId: body.surveyId },
+          "Survey not found or not accessible"
+        );
+        return response;
+      }
+
+      return successResponse(
+        serializeValidationResult("patch", prepareV3SurveyPatchInput(survey, body.data)),
+        {
+          requestId,
+          cache: "private, no-store",
+        }
+      );
+    } catch (error) {
+      if (error instanceof DatabaseError) {
+        log.error({ error, statusCode: 500 }, "Database error");
+        return problemInternalError(requestId, "An unexpected error occurred.", instance);
+      }
+
+      log.error({ error, statusCode: 500 }, "V3 survey validation unexpected error");
+      return problemInternalError(requestId, "An unexpected error occurred.", instance);
+    }
+  },
+});

apps/web/app/api/v3/surveys/validation.ts

@@ -0,0 +1,27 @@
+import type { InvalidParam } from "@/app/api/v3/lib/response";
+import { validateV3SurveyReferences } from "./reference-validation";
+import type { TV3SurveyDocument } from "./schemas";
+
+export type TV3SurveyDocumentValidationResult =
+  | { valid: true; invalidParams: [] }
+  | { valid: false; invalidParams: InvalidParam[] };
+
+export function validateV3SurveyDocument(document: TV3SurveyDocument): TV3SurveyDocumentValidationResult {
+  const referenceValidation = validateV3SurveyReferences({
+    blocks: document.blocks,
+    endings: document.endings,
+    hiddenFields: document.hiddenFields,
+    metadata: document.metadata,
+    variables: document.variables,
+    welcomeCard: document.welcomeCard,
+  });
+
+  if (!referenceValidation.ok) {
+    return {
+      valid: false,
+      invalidParams: referenceValidation.invalidParams,
+    };
+  }
+
+  return { valid: true, invalidParams: [] };
+}

apps/web/lib/survey/service.test.ts

@@ -733,6 +733,85 @@ describe("Tests for createSurvey", () => {
         })
       );
     });
+
+    test("creates survey languages from validated language inputs", async () => {
+      vi.mocked(getOrganizationByWorkspaceId).mockResolvedValueOnce(mockOrganizationOutput);
+      prisma.survey.create.mockResolvedValueOnce({
+        ...mockSurveyOutput,
+      });
+
+      await createSurvey(mockWorkspaceId, {
+        ...mockCreateSurveyInput,
+        languages: [
+          {
+            default: true,
+            enabled: true,
+            language: {
+              id: "cllang12345678901234567890",
+              code: "en-US",
+              alias: null,
+              workspaceId: mockWorkspaceId,
+              createdAt: new Date(),
+              updatedAt: new Date(),
+            },
+          },
+        ],
+      });
+
+      expect(prisma.survey.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            languages: {
+              create: [
+                {
+                  language: {
+                    connect: {
+                      id: "cllang12345678901234567890",
+                    },
+                  },
+                  default: true,
+                  enabled: true,
+                },
+              ],
+            },
+          }),
+        })
+      );
+    });
+
+    test("preserves an explicitly provided segment relation for existing callers", async () => {
+      vi.mocked(getOrganizationByWorkspaceId).mockResolvedValueOnce(mockOrganizationOutput);
+      prisma.survey.create.mockResolvedValueOnce({
+        ...mockSurveyOutput,
+      });
+
+      await createSurvey(mockWorkspaceId, {
+        ...mockCreateSurveyInput,
+        segment: {
+          id: "clseg123456789012345678901",
+          title: "Segment",
+          description: null,
+          isPrivate: false,
+          filters: [],
+          workspaceId: mockWorkspaceId,
+          surveys: [],
+          createdAt: new Date(),
+          updatedAt: new Date(),
+        },
+      });
+
+      expect(prisma.survey.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            segment: {
+              connect: {
+                id: "clseg123456789012345678901",
+              },
+            },
+          }),
+        })
+      );
+    });
   });
 
   describe("Sad Path", () => {

apps/web/lib/survey/service.ts

@@ -628,9 +628,23 @@ export const createSurvey = async (workspaceId: string, surveyBody: TSurveyCreat
   );
 
   try {
-    const { createdBy, languages, ...restSurveyBody } = parsedSurveyBody;
+    const { createdBy, languages, segment, followUps, ...restSurveyBody } = parsedSurveyBody;
     const normalizedCloseOn = restSurveyBody.closeOn instanceof Date ? restSurveyBody.closeOn : null;
     const normalizedPublishOn = restSurveyBody.publishOn instanceof Date ? restSurveyBody.publishOn : null;
+    const surveyLanguagesCreateData: Prisma.SurveyLanguageCreateNestedManyWithoutSurveyInput | undefined =
+      languages?.length
+        ? {
+            create: languages.map((surveyLanguage) => ({
+              language: {
+                connect: {
+                  id: surveyLanguage.language.id,
+                },
+              },
+              default: surveyLanguage.default,
+              enabled: surveyLanguage.enabled,
+            })),
+          }
+        : undefined;
 
     const actionClasses = await getActionClasses(parsedWorkspaceId);
 
@@ -641,18 +655,15 @@ export const createSurvey = async (workspaceId: string, surveyBody: TSurveyCreat
         publishOn: normalizedPublishOn,
         status: restSurveyBody.status ?? "draft",
       }),
-      // @ts-expect-error - languages would be undefined in case of empty array
-      languages: languages?.length ? languages : undefined,
+      languages: surveyLanguagesCreateData,
+      segment: segment?.id ? { connect: { id: segment.id } } : undefined,
       triggers: restSurveyBody.triggers
         ? handleTriggerUpdates(restSurveyBody.triggers, [], actionClasses)
         : undefined,
       attributeFilters: undefined,
     };
     const data = validateSurveyCreateDataMedia(
-      attachSurveyFollowUpsToCreateData(
-        attachSurveyCreatorToCreateData(baseData, createdBy),
-        restSurveyBody.followUps
-      )
+      attachSurveyFollowUpsToCreateData(attachSurveyCreatorToCreateData(baseData, createdBy), followUps)
     );
 
     const organization = await getOrganizationByWorkspaceId(parsedWorkspaceId);

apps/web/lib/utils/action-client/index.test.ts

@@ -5,7 +5,6 @@ import { afterEach, beforeEach, describe, expect, test, vi } from "vitest";
 import {
   AuthenticationError,
   AuthorizationError,
-  ConfigurationError,
   EXPECTED_ERROR_NAMES,
   INVALID_PASSWORD_RESET_TOKEN_ERROR_CODE,
   InvalidInputError,
@@ -75,7 +74,6 @@ describe("isExpectedError (shared helper)", () => {
       "ValidationError",
       "AuthenticationError",
       "OperationNotAllowedError",
-      "ConfigurationError",
       "QueryExecutionError",
       "TooManyRequestsError",
       "InvalidPasswordResetTokenError",
@@ -96,7 +94,6 @@ describe("isExpectedError (shared helper)", () => {
     { ErrorClass: InvalidInputError, args: ["Invalid input"] },
     { ErrorClass: ValidationError, args: ["Invalid data"] },
     { ErrorClass: OperationNotAllowedError, args: ["Not allowed"] },
-    { ErrorClass: ConfigurationError, args: ["Cube is not configured"] },
     { ErrorClass: QueryExecutionError, args: ["Cube query failed. Details: connect ECONNREFUSED"] },
     { ErrorClass: InvalidPasswordResetTokenError, args: [INVALID_PASSWORD_RESET_TOKEN_ERROR_CODE] },
     { ErrorClass: UniqueConstraintError, args: ["Already exists"] },
@@ -188,12 +185,6 @@ describe("actionClient handleServerError", () => {
       expect(Sentry.captureException).not.toHaveBeenCalled();
     });
 
-    test("ConfigurationError returns its message and is not sent to Sentry", async () => {
-      const result = await executeThrowingAction(new ConfigurationError("Cube is not configured"));
-      expect(result?.serverError).toBe("Cube is not configured");
-      expect(Sentry.captureException).not.toHaveBeenCalled();
-    });
-
     test("QueryExecutionError returns its message and is not sent to Sentry", async () => {
       const result = await executeThrowingAction(
         new QueryExecutionError("Cube query failed. Details: connect ECONNREFUSED")

apps/web/locales/de-DE.json

@@ -2710,6 +2710,8 @@
         "save_the_following_backup_codes_in_a_safe_place": "Speichere die folgenden Backup-Codes an einem sicheren Ort.",
         "scan_the_qr_code_below_with_your_authenticator_app": "Scanne den QR-Code unten mit deiner Authenticator-App.",
         "security_description": "Verwalte dein Passwort und andere Sicherheitseinstellungen wie die Zwei-Faktor-Authentifizierung (2FA).",
+        "sso_identity_confirmation_failed": "SSO-Identitätsbestätigung fehlgeschlagen. Bitte versuche erneut, dein Konto zu löschen.",
+        "sso_identity_confirmation_may_be_required_for_deletion": "Bei SSO-Konten kann dich die Auswahl von Löschen zu deinem Identitätsanbieter weiterleiten, um dieses Konto zu bestätigen. Wenn dasselbe Konto bestätigt wird, wird die Löschung automatisch fortgesetzt.",
         "two_factor_authentication": "Zwei-Faktor-Authentifizierung",
         "two_factor_authentication_description": "Füge deinem Konto eine zusätzliche Sicherheitsebene hinzu, falls dein Passwort gestohlen wird.",
         "two_factor_authentication_enabled_please_enter_the_six_digit_code_from_your_authenticator_app": "Zwei-Faktor-Authentifizierung aktiviert. Bitte gib den sechsstelligen Code aus deiner Authenticator-App ein.",
@@ -2718,9 +2720,7 @@
         "update_personal_info": "Aktualisiere deine persönlichen Informationen",
         "warning_cannot_delete_account": "Du bist der einzige Inhaber dieser Organisation. Bitte übertrage zuerst die Inhaberschaft auf ein anderes Mitglied.",
         "warning_cannot_undo": "Dies kann nicht rückgängig gemacht werden",
-        "wrong_password": "Falsches Passwort",
-        "sso_identity_confirmation_failed": "SSO-Identitätsbestätigung fehlgeschlagen. Bitte versuche erneut, dein Konto zu löschen.",
-        "sso_identity_confirmation_may_be_required_for_deletion": "Bei SSO-Konten kann dich die Auswahl von Löschen zu deinem Identitätsanbieter weiterleiten, um dieses Konto zu bestätigen. Wenn dasselbe Konto bestätigt wird, wird die Löschung automatisch fortgesetzt."
+        "wrong_password": "Falsches Passwort"
       },
       "teams": {
         "add_members_description": "Füge Mitglieder zum Team hinzu und lege ihre Rolle fest.",

apps/web/locales/tr-TR.json

@@ -2710,6 +2710,8 @@
         "save_the_following_backup_codes_in_a_safe_place": "Aşağıdaki yedekleme kodlarını güvenli bir yerde sakla.",
         "scan_the_qr_code_below_with_your_authenticator_app": "Aşağıdaki QR kodunu kimlik doğrulayıcı uygulamanla tara.",
         "security_description": "Şifreni ve iki faktörlü kimlik doğrulama (2FA) gibi diğer güvenlik ayarlarını yönet.",
+        "sso_identity_confirmation_failed": "SSO kimlik doğrulaması başarısız oldu. Lütfen hesabınızı silmeyi tekrar deneyin.",
+        "sso_identity_confirmation_may_be_required_for_deletion": "SSO hesaplarında Sil'i seçmek, bu hesabı onaylamanız için sizi kimlik sağlayıcınıza yönlendirebilir. Aynı hesap onaylanırsa silme işlemi otomatik olarak devam eder.",
         "two_factor_authentication": "İki faktörlü kimlik doğrulama",
         "two_factor_authentication_description": "Şifren çalınması durumunda hesabına ekstra bir güvenlik katmanı ekle.",
         "two_factor_authentication_enabled_please_enter_the_six_digit_code_from_your_authenticator_app": "İki faktörlü kimlik doğrulama etkinleştirildi. Lütfen kimlik doğrulayıcı uygulamandaki altı haneli kodu gir.",
@@ -2718,9 +2720,7 @@
         "update_personal_info": "Kişisel bilgilerini güncelle",
         "warning_cannot_delete_account": "Bu organizasyonun tek sahibi sensin. Lütfen önce sahipliği başka bir üyeye aktar.",
         "warning_cannot_undo": "Bu geri alınamaz",
-        "wrong_password": "Yanlış şifre",
-        "sso_identity_confirmation_failed": "SSO kimlik doğrulaması başarısız oldu. Lütfen hesabınızı silmeyi tekrar deneyin.",
-        "sso_identity_confirmation_may_be_required_for_deletion": "SSO hesaplarında Sil'i seçmek, bu hesabı onaylamanız için sizi kimlik sağlayıcınıza yönlendirebilir. Aynı hesap onaylanırsa silme işlemi otomatik olarak devam eder."
+        "wrong_password": "Yanlış şifre"
       },
       "teams": {
         "add_members_description": "Ekibe üye ekle ve rollerini belirle.",

apps/web/modules/ee/analysis/api/lib/cube-config.test.ts

@@ -112,4 +112,12 @@ describe("cube-config", () => {
 
     await expect(import("./cube-config")).rejects.toThrow("Invalid environment variables");
   });
+
+  test("fails at env validation when CUBEJS_API_SECRET is an empty string", async () => {
+    setTestEnv({
+      CUBEJS_API_SECRET: "",
+    });
+
+    await expect(import("./cube-config")).rejects.toThrow("Invalid environment variables");
+  });
 });

apps/web/modules/ee/analysis/api/lib/cube-config.ts

@@ -1,11 +1,8 @@
 import "server-only";
 import jwt from "jsonwebtoken";
 import { randomUUID } from "node:crypto";
-import { ConfigurationError } from "@formbricks/types/errors";
 import { env } from "@/lib/env";
 
-export const CUBE_CONFIGURATION_ERROR_MESSAGE =
-  "Cube is not configured on this instance. Set CUBEJS_API_URL and CUBEJS_API_SECRET.";
 export const CUBE_API_TOKEN_TTL_SECONDS = 5 * 60;
 export const CUBE_QUERY_SCOPE = "xm:cube:query";
 export const DEFAULT_CUBE_JWT_AUDIENCE = "formbricks-cube";
@@ -39,18 +36,12 @@ export const normalizeCubeApiUrl = (baseUrl: string): string => {
   return `${normalizedBaseUrl}/cubejs-api/v1`;
 };
 
-export const getCubeApiCredentials = () => {
-  if (!env.CUBEJS_API_URL || !env.CUBEJS_API_SECRET) {
-    throw new ConfigurationError(CUBE_CONFIGURATION_ERROR_MESSAGE);
-  }
-
-  return {
-    apiUrl: normalizeCubeApiUrl(env.CUBEJS_API_URL),
-    apiSecret: env.CUBEJS_API_SECRET,
-    audience: env.CUBEJS_JWT_AUDIENCE ?? DEFAULT_CUBE_JWT_AUDIENCE,
-    issuer: env.CUBEJS_JWT_ISSUER ?? DEFAULT_CUBE_JWT_ISSUER,
-  };
-};
+export const getCubeApiCredentials = () => ({
+  apiUrl: normalizeCubeApiUrl(env.CUBEJS_API_URL),
+  apiSecret: env.CUBEJS_API_SECRET,
+  audience: env.CUBEJS_JWT_AUDIENCE ?? DEFAULT_CUBE_JWT_AUDIENCE,
+  issuer: env.CUBEJS_JWT_ISSUER ?? DEFAULT_CUBE_JWT_ISSUER,
+});
 
 export const createCubeApiToken = (
   apiSecret: string,

apps/web/modules/storage/utils.test.ts

@@ -2,6 +2,7 @@ import { beforeEach, describe, expect, test, vi } from "vitest";
 import { StorageErrorCode } from "@formbricks/storage";
 import { TResponseData } from "@formbricks/types/responses";
 import { ZAllowedFileExtension } from "@formbricks/types/storage";
+import { TSurveyBlock } from "@formbricks/types/surveys/blocks";
 import { TSurveyQuestion } from "@formbricks/types/surveys/types";
 import {
   isAllowedFileExtension,
@@ -12,6 +13,7 @@ import {
   sanitizeFileName,
   validateFileUploads,
   validateSingleFile,
+  validateSurveyAllowsFileUpload,
 } from "@/modules/storage/utils";
 
 // Mock the getOriginalFileNameFromUrl function
@@ -351,6 +353,148 @@ describe("storage utils", () => {
     });
   });
 
+  describe("validateSurveyAllowsFileUpload", () => {
+    test("should allow a matching extension from a modern file upload block element", () => {
+      const blocks = [
+        {
+          id: "block1",
+          name: "Block 1",
+          elements: [
+            {
+              id: "element1",
+              type: "fileUpload" as const,
+              allowedFileExtensions: ["pdf"],
+            },
+          ],
+        },
+      ] as unknown as TSurveyBlock[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report.pdf", blocks })).toEqual({ ok: true });
+    });
+
+    test("should allow a matching extension from a legacy file upload question", () => {
+      const questions = [
+        {
+          id: "question1",
+          type: "fileUpload" as const,
+          allowedFileExtensions: ["png"],
+        },
+      ] as TSurveyQuestion[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "image.png", questions })).toEqual({ ok: true });
+    });
+
+    test("should allow any globally safe extension when a file upload has no survey restriction", () => {
+      const blocks = [
+        {
+          id: "block1",
+          name: "Block 1",
+          elements: [
+            {
+              id: "element1",
+              type: "fileUpload" as const,
+            },
+          ],
+        },
+      ] as unknown as TSurveyBlock[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report.pdf", blocks })).toEqual({ ok: true });
+    });
+
+    test("should reject surveys without file upload blocks or questions", () => {
+      const blocks = [
+        {
+          id: "block1",
+          name: "Block 1",
+          elements: [
+            {
+              id: "element1",
+              type: "openText" as const,
+            },
+          ],
+        },
+      ] as unknown as TSurveyBlock[];
+      const questions = [
+        {
+          id: "question1",
+          type: "openText" as const,
+        },
+      ] as TSurveyQuestion[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report.pdf", blocks, questions })).toEqual({
+        ok: false,
+        reason: "no_file_upload_question",
+      });
+    });
+
+    test("should reject when no file upload entry allows the requested extension", () => {
+      const blocks = [
+        {
+          id: "block1",
+          name: "Block 1",
+          elements: [
+            {
+              id: "element1",
+              type: "fileUpload" as const,
+              allowedFileExtensions: ["jpg"],
+            },
+            {
+              id: "element2",
+              type: "fileUpload" as const,
+              allowedFileExtensions: ["png"],
+            },
+          ],
+        },
+      ] as unknown as TSurveyBlock[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report.pdf", blocks })).toEqual({
+        ok: false,
+        reason: "file_extension_not_allowed",
+      });
+    });
+
+    test("should allow when any file upload entry permits the requested extension", () => {
+      const blocks = [
+        {
+          id: "block1",
+          name: "Block 1",
+          elements: [
+            {
+              id: "element1",
+              type: "fileUpload" as const,
+              allowedFileExtensions: ["jpg"],
+            },
+            {
+              id: "element2",
+              type: "fileUpload" as const,
+              allowedFileExtensions: ["pdf"],
+            },
+          ],
+        },
+      ] as unknown as TSurveyBlock[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report.pdf", blocks })).toEqual({ ok: true });
+    });
+
+    test("should reject files without a globally safe extension even when the survey has an unrestricted upload", () => {
+      const questions = [
+        {
+          id: "question1",
+          type: "fileUpload" as const,
+        },
+      ] as TSurveyQuestion[];
+
+      expect(validateSurveyAllowsFileUpload({ fileName: "report", questions })).toEqual({
+        ok: false,
+        reason: "file_extension_not_allowed",
+      });
+      expect(validateSurveyAllowsFileUpload({ fileName: "malware.exe", questions })).toEqual({
+        ok: false,
+        reason: "file_extension_not_allowed",
+      });
+    });
+  });
+
   describe("isValidImageFile", () => {
     test("should return true for valid image file extensions", () => {
       expect(isValidImageFile("https://example.com/image.jpg")).toBe(true);

apps/web/modules/storage/utils.ts

@@ -2,6 +2,8 @@ import "server-only";
 import { type StorageError, StorageErrorCode } from "@formbricks/storage";
 import { TResponseData } from "@formbricks/types/responses";
 import { TAllowedFileExtension, ZAllowedFileExtension } from "@formbricks/types/storage";
+import { TSurveyBlock } from "@formbricks/types/surveys/blocks";
+import { TSurveyElementTypeEnum, TSurveyFileUploadElement } from "@formbricks/types/surveys/elements";
 import { TSurveyQuestion, TSurveyQuestionTypeEnum } from "@formbricks/types/surveys/types";
 import { responses } from "@/app/lib/api/response";
 import { WEBAPP_URL } from "@/lib/constants";
@@ -57,15 +59,27 @@ export const sanitizeFileName = (rawFileName: string): string => {
   return result;
 };
 
+/**
+ * Extracts the lowercase file extension from a file name
+ * @param fileName The name of the file
+ * @returns {string | null} The lowercase extension, or null when no extension exists
+ */
+const extractFileExtension = (fileName: string): string | null => {
+  const extension = fileName.split(".").pop()?.toLowerCase();
+
+  if (!extension || extension === fileName.toLowerCase()) return null;
+
+  return extension;
+};
+
 /**
  * Validates if the file extension is allowed
  * @param fileName The name of the file to validate
  * @returns {boolean} True if the file extension is allowed, false otherwise
  */
 export const isAllowedFileExtension = (fileName: string): boolean => {
-  // Extract the file extension
-  const extension = fileName.split(".").pop()?.toLowerCase();
-  if (!extension || extension === fileName.toLowerCase()) return false;
+  const extension = extractFileExtension(fileName);
+  if (!extension) return false;
 
   // Check if the extension is in the allowed list
   return Object.values(ZAllowedFileExtension.enum).includes(extension as TAllowedFileExtension);
@@ -77,7 +91,7 @@ export const validateSingleFile = (
 ): boolean => {
   const fileName = getOriginalFileNameFromUrl(fileUrl);
   if (!fileName) return false;
-  const extension = fileName.split(".").pop()?.toLowerCase();
+  const extension = extractFileExtension(fileName);
   if (!extension) return false;
   return !allowedFileExtensions || allowedFileExtensions.includes(extension as TAllowedFileExtension);
 };
@@ -100,6 +114,70 @@ export const validateFileUploads = (data?: TResponseData, questions?: TSurveyQue
   return true;
 };
 
+export type TSurveyFileUploadPermissionResult =
+  | {
+      ok: true;
+    }
+  | {
+      ok: false;
+      reason: "no_file_upload_question" | "file_extension_not_allowed";
+    };
+
+const getAllowedFileExtensionFromFileName = (fileName: string): TAllowedFileExtension | null => {
+  const extension = extractFileExtension(fileName);
+  if (!extension) return null;
+
+  const extensionValidation = ZAllowedFileExtension.safeParse(extension);
+
+  return extensionValidation.success ? extensionValidation.data : null;
+};
+
+export const validateSurveyAllowsFileUpload = ({
+  fileName,
+  blocks,
+  questions,
+}: {
+  fileName: string;
+  blocks?: TSurveyBlock[] | null;
+  questions?: TSurveyQuestion[] | null;
+}): TSurveyFileUploadPermissionResult => {
+  const fileUploadConfigs = [
+    ...(blocks ?? [])
+      .flatMap((block) => block.elements)
+      .filter((element) => element.type === TSurveyElementTypeEnum.FileUpload),
+    ...(questions ?? []).filter((question) => question.type === TSurveyQuestionTypeEnum.FileUpload),
+  ] as TSurveyFileUploadElement[];
+
+  if (fileUploadConfigs.length === 0) {
+    return {
+      ok: false,
+      reason: "no_file_upload_question",
+    };
+  }
+
+  const fileExtension = getAllowedFileExtensionFromFileName(fileName);
+
+  if (!fileExtension) {
+    return {
+      ok: false,
+      reason: "file_extension_not_allowed",
+    };
+  }
+
+  const isFileExtensionAllowed = fileUploadConfigs.some((fileUploadConfig) => {
+    const { allowedFileExtensions } = fileUploadConfig;
+
+    return allowedFileExtensions === undefined || allowedFileExtensions.includes(fileExtension);
+  });
+
+  return isFileExtensionAllowed
+    ? { ok: true }
+    : {
+        ok: false,
+        reason: "file_extension_not_allowed",
+      };
+};
+
 export const isValidImageFile = (fileUrl: string): boolean => {
   const fileName = getOriginalFileNameFromUrl(fileUrl);
   if (!fileName || fileName.endsWith(".")) return false;

apps/web/modules/survey/link/components/survey-client-wrapper.tsx

@@ -3,6 +3,7 @@
 import { Workspace } from "@prisma/client";
 import { useSearchParams } from "next/navigation";
 import { useCallback, useEffect, useMemo, useState } from "react";
+import { useTranslation } from "react-i18next";
 import { TResponseData } from "@formbricks/types/responses";
 import { TSurvey, TSurveyStyling } from "@formbricks/types/surveys/types";
 import { TWorkspaceStyling } from "@formbricks/types/workspace";
@@ -13,7 +14,7 @@ import { LinkSurveyWrapper } from "@/modules/survey/link/components/link-survey-
 import { OfflineAlert } from "@/modules/survey/link/components/offline-alert";
 import { getPrefillValue } from "@/modules/survey/link/lib/prefill";
 import { getUserIdFromSearchParams } from "@/modules/survey/link/lib/user-id";
-import { isRTLLanguage } from "@/modules/survey/link/lib/utils";
+import { getWebAppLocale, isRTLLanguage } from "@/modules/survey/link/lib/utils";
 import { SurveyInline } from "@/modules/ui/components/survey";
 
 interface SurveyClientWrapperProps {
@@ -63,6 +64,17 @@ export const SurveyClientWrapper = ({
   IS_FORMBRICKS_CLOUD,
 }: SurveyClientWrapperProps) => {
   const searchParams = useSearchParams();
+  const { i18n } = useTranslation();
+
+  useEffect(() => {
+    const webAppLocale = getWebAppLocale(languageCode, survey);
+    if (i18n.language !== webAppLocale) {
+      i18n.changeLanguage(webAppLocale).catch(() => {
+        i18n.changeLanguage("en-US");
+      });
+    }
+  }, [languageCode, survey, i18n]);
+
   const skipPrefilled = searchParams.get("skipPrefilled") === "true";
   const offlineSupport = searchParams.get("offlineSupport") === "true";
   const userId = canReadUserIdFromUrl ? getUserIdFromSearchParams(searchParams) : undefined;

apps/web/modules/survey/list/hooks/use-delete-survey.test.ts

@@ -99,12 +99,7 @@ describe("useDeleteSurvey", () => {
       0
     );
 
-    resolveFetch?.(
-      new Response(JSON.stringify({ data: { id: "survey_1" } }), {
-        status: 200,
-        headers: { "Content-Type": "application/json" },
-      })
-    );
+    resolveFetch?.(new Response(null, { status: 204 }));
 
     await waitFor(() => expect(result.current.isSuccess).toBe(true));
     expect(invalidateQueriesSpy).toHaveBeenCalledWith({ queryKey: surveyKeys.lists() });

apps/web/modules/survey/list/lib/v3-surveys-client.test.ts

@@ -1,5 +1,10 @@
-import { describe, expect, test } from "vitest";
-import { buildSurveyListSearchParams } from "./v3-surveys-client";
+import { afterEach, describe, expect, test, vi } from "vitest";
+import type { V3ApiError } from "@/modules/api/lib/v3-client";
+import { buildSurveyListSearchParams, deleteSurvey } from "./v3-surveys-client";
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
 
 describe("buildSurveyListSearchParams", () => {
   test("emits only supported v3 params using normalized filter values", () => {
@@ -39,3 +44,39 @@ describe("buildSurveyListSearchParams", () => {
     );
   });
 });
+
+describe("deleteSurvey", () => {
+  test("treats 204 No Content as a successful delete", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(new Response(null, { status: 204 }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await expect(deleteSurvey("survey_1")).resolves.toBeUndefined();
+
+    expect(fetchMock).toHaveBeenCalledWith("/api/v3/surveys/survey_1", {
+      method: "DELETE",
+      cache: "no-store",
+    });
+  });
+
+  test("maps v3 problem responses to V3ApiError", async () => {
+    vi.stubGlobal(
+      "fetch",
+      vi.fn().mockResolvedValue(
+        Response.json(
+          {
+            status: 403,
+            detail: "You are not authorized to access this resource",
+            code: "forbidden",
+          },
+          { status: 403 }
+        )
+      )
+    );
+
+    await expect(deleteSurvey("survey_1")).rejects.toMatchObject<V3ApiError>({
+      status: 403,
+      detail: "You are not authorized to access this resource",
+      code: "forbidden",
+    });
+  });
+});

apps/web/modules/survey/list/lib/v3-surveys-client.ts

@@ -13,12 +13,6 @@ type TV3SurveyListResponse = {
   meta: TSurveyListPage["meta"];
 };
 
-type TV3DeleteSurveyResponse = {
-  data: {
-    id: string;
-  };
-};
-
 export type TSurveyListPage = {
   data: TSurveyListItem[];
   meta: {
@@ -122,7 +116,7 @@ export async function listSurveys({
   };
 }
 
-export async function deleteSurvey(surveyId: string): Promise<{ id: string }> {
+export async function deleteSurvey(surveyId: string): Promise<void> {
   const response = await fetch(`/api/v3/surveys/${surveyId}`, {
     method: "DELETE",
     cache: "no-store",
@@ -131,7 +125,4 @@ export async function deleteSurvey(surveyId: string): Promise<{ id: string }> {
   if (!response.ok) {
     throw await parseV3ApiError(response);
   }
-
-  const body = (await response.json()) as TV3DeleteSurveyResponse;
-  return body.data;
 }

charts/formbricks/README.md

@@ -46,14 +46,15 @@ The intended defaults are:
 - self-hosted / single-tenant clusters: bundled controller mode
 - shared clusters with an existing platform controller: external-controller mode
 
-## Cube.js for XM Suite v5
+## Cube
 
-XM Suite v5 dashboard and analysis features require Cube.js. Set `cube.enabled=true` to deploy an
-internal Cube service from this chart, or provide an external Cube endpoint.
+Cube is part of the baseline Formbricks v5 stack and is deployed by this chart by default
+(`cube.enabled: true`).
 
-- For chart-managed Cube, set `deployment.env.CUBEJS_API_URL` to `http://formbricks-cube:4000`
+- For the chart-managed Cube, `deployment.env.CUBEJS_API_URL` should point at `http://formbricks-cube:4000`
   when using the default release name.
-- For external Cube, set `deployment.env.CUBEJS_API_URL` to your Cube endpoint.
+- For an external Cube, set `cube.enabled: false` and point `deployment.env.CUBEJS_API_URL` at your
+  endpoint.
 - Provide `CUBEJS_API_SECRET` through your existing secret management flow, such as the generated app secret override or `deployment.envFrom`.
 - Provide `CUBEJS_DB_*` connection variables to the Cube deployment through `cube.envFrom` or `cube.env`.
 - Keep `cube.replicas=1` while `cube.env.CUBEJS_CACHE_AND_QUEUE_DRIVER` is `memory`. Configure Cube Store before running multiple Cube replicas.

charts/formbricks/values.yaml

@@ -96,8 +96,8 @@ deployment:
     #   nameSuffix: app-secrets
 
   # Environment variables passed to the app container.
-  # XM Suite v5 analytics requires an external Cube endpoint when using Helm:
-  # set deployment.env.CUBEJS_API_URL and provide CUBEJS_API_SECRET through a Secret referenced by envFrom/existingSecret.
+  # Cube is bundled by default (see the `cube` section below). To use an external Cube cluster instead,
+  # set `cube.enabled: false` and provide CUBEJS_API_URL / CUBEJS_API_SECRET here via deployment.env or envFrom.
   env: {}
 
   # Tolerations for scheduling pods on tainted nodes
@@ -561,8 +561,10 @@ serviceMonitor:
 # Cube.js Analytics Configuration
 ##########################################################
 cube:
-  # Optional internal Cube.js service for XM Suite v5 analytics.
-  enabled: false
+  # Cube semantic-layer service used by Formbricks analytics. Bundled by default.
+  # Set to false only if you want to point the app at an external Cube cluster
+  # via deployment.env.CUBEJS_API_URL (CUBEJS_API_SECRET must still be provided).
+  enabled: true
   replicas: 1
 
   image:
@@ -900,10 +902,6 @@ hub:
     affinity: {}
     topologySpreadConstraints: []
 
-  # XM Suite v5 analytics also requires Cube. Use cube.enabled=true to deploy
-  # the internal chart-managed Cube service, or set deployment.env.CUBEJS_API_URL
-  # to an operator-managed Cube endpoint.
-
   # Upgrade migration job runs goose + river before Helm upgrades Hub resources.
   # Fresh installs run the same migrations through the Hub deployment init container.
   migration:

docker-compose.dev.yml

@@ -155,7 +155,6 @@ services:
       <<: *hub-runtime-environment
 
   cube:
-    profiles: ["xm"]
     image: cubejs/cube:v1.6.6
     env_file:
       - apps/web/.env

docker/README.md

@@ -30,13 +30,13 @@ That's it! After running the command and providing the required information, vis
 
 ## Formbricks Hub and Cube
 
-The stack includes the [Formbricks Hub](https://github.com/formbricks/hub) API (`ghcr.io/formbricks/hub`) and can also run a bundled Cube.js service for XM Suite v5 analytics. Hub and Cube share the same database as Formbricks by default, and Cube is enabled through the optional Docker Compose `xm` profile.
+The stack includes the [Formbricks Hub](https://github.com/formbricks/hub) API (`ghcr.io/formbricks/hub`) and the bundled Cube service. Hub and Cube share the same database as Formbricks by default and both start as part of the baseline `docker compose up`.
 
 - **Migrations**: A `hub-migrate` service runs Hub's database migrations (goose + river) before the Hub API starts. It runs on every `docker compose up` and is idempotent.
-- **Production** (`docker/docker-compose.yml`): Set `HUB_API_KEY` (required). `HUB_API_URL` defaults to `http://hub:8080` so the Formbricks app can reach Hub inside the compose network. To enable XM Suite v5 analytics, set `COMPOSE_PROFILES=xm` and `CUBEJS_API_SECRET`; `CUBEJS_API_URL` defaults to `http://cube:4000`. Cube JWT issuer/audience default to `formbricks-web` and `formbricks-cube`, and the bundled Cube service exposes only `meta,data` API scopes. Override `HUB_DATABASE_URL` and `CUBEJS_DB_*` only if Hub or Cube should use a separate database. The Hub image tracks `:latest` by default so `formbricks.sh update` advances Hub in lockstep with the app. `hub` and `hub-migrate` always resolve to the same image. To pin to an immutable reference, set `HUB_IMAGE_REF` in `docker/.env` to either a tag (e.g. `:0.3.0`) or a digest (e.g. `@sha256:14db7b3d...`).
-- **Development** (`docker-compose.dev.yml`): Hub uses a dedicated local `hub` database and `HUB_API_KEY` defaults to `dev-api-key`. The dev stack starts `hub` plus `hub-worker`; set `EMBEDDING_PROVIDER`, `EMBEDDING_MODEL`, and any provider credentials in the repo root `.env` to enable Hub embeddings locally. See the [Hub embeddings environment reference](https://hub.formbricks.com/reference/environment-variables/#embeddings) for provider-specific values. Cube is behind the `xm` profile, `CUBEJS_API_URL` defaults to `http://localhost:4000`, and `pnpm dev:setup` generates `CUBEJS_API_SECRET` in the repo root `.env`. The Hub image is pinned to a semver tag (`hub`, `hub-worker`, and `hub-migrate` share the same value); override `HUB_IMAGE_TAG` in the repo root `.env` to test a specific Hub release.
+- **Production** (`docker/docker-compose.yml`): Set `HUB_API_KEY` and `CUBEJS_API_SECRET` (both required). `HUB_API_URL` defaults to `http://hub:8080` and `CUBEJS_API_URL` defaults to `http://cube:4000` so the Formbricks app reaches Hub and Cube inside the compose network. Cube JWT issuer/audience default to `formbricks-web` and `formbricks-cube`, and the bundled Cube service exposes only `meta,data` API scopes. Override `HUB_DATABASE_URL` and `CUBEJS_DB_*` only if Hub or Cube should use a separate database. The Hub image tracks `:latest` by default so `formbricks.sh update` advances Hub in lockstep with the app. `hub` and `hub-migrate` always resolve to the same image. To pin to an immutable reference, set `HUB_IMAGE_REF` in `docker/.env` to either a tag (e.g. `:0.3.0`) or a digest (e.g. `@sha256:14db7b3d...`).
+- **Development** (`docker-compose.dev.yml`): Hub uses a dedicated local `hub` database and `HUB_API_KEY` defaults to `dev-api-key`. The dev stack starts `hub` plus `hub-worker`; set `EMBEDDING_PROVIDER`, `EMBEDDING_MODEL`, and any provider credentials in the repo root `.env` to enable Hub embeddings locally. See the [Hub embeddings environment reference](https://hub.formbricks.com/reference/environment-variables/#embeddings) for provider-specific values. Cube starts with the dev stack, `CUBEJS_API_URL` defaults to `http://localhost:4000`, and `pnpm dev:setup` generates `CUBEJS_API_SECRET` in the repo root `.env`. The Hub image is pinned to a semver tag (`hub`, `hub-worker`, and `hub-migrate` share the same value); override `HUB_IMAGE_TAG` in the repo root `.env` to test a specific Hub release.
 
-In development, Hub is exposed locally on port **8080**. When the `xm` profile is enabled, Cube is exposed on **4000** (with the Cube playground on **4001**). In production Docker Compose, Hub stays internal to the compose network at `http://hub:8080`; Cube also stays internal at `http://cube:4000` when enabled.
+In development, Hub is exposed locally on port **8080** and Cube on **4000** (with the Cube playground on **4001**). In production Docker Compose, both stay internal to the compose network at `http://hub:8080` and `http://cube:4000`.
 
 The one-click Traefik installer exposes Hub-backed FeedbackRecords on the Formbricks origin at
 `/api/v3/feedbackRecords` and `/v1/feedback-records`. Traefik uses Formbricks gateway auth, rewrites the v3

docker/docker-compose.yml

@@ -38,7 +38,7 @@ x-environment: &environment
     # Hub database URL (optional). Default: same Postgres as Formbricks. Set only if Hub uses a separate DB.
     # HUB_DATABASE_URL:
 
-    # Cube.js analytics for XM Suite v5. Enable the optional xm profile and set CUBEJS_API_SECRET to run Cube.
+    # Cube semantic-layer API used by Formbricks analytics. Required.
     CUBEJS_API_URL: ${CUBEJS_API_URL:-http://cube:4000}
     CUBEJS_API_SECRET: ${CUBEJS_API_SECRET:-}
     CUBEJS_JWT_ISSUER: ${CUBEJS_JWT_ISSUER:-formbricks-web}
@@ -257,6 +257,8 @@ services:
         condition: service_healthy
       redis:
         condition: service_healthy
+      cube:
+        condition: service_healthy
     ports:
       - 3000:3000
     volumes:
@@ -294,9 +296,8 @@ services:
       API_KEY: ${HUB_API_KEY:?HUB_API_KEY is required to run Hub}
       DATABASE_URL: ${HUB_DATABASE_URL:-postgresql://postgres:postgres@postgres:5432/formbricks?sslmode=disable}
 
-  # Optional Cube.js analytics service for XM Suite v5. Enable with COMPOSE_PROFILES=xm and set CUBEJS_API_SECRET.
+  # Cube semantic-layer API used by Formbricks analytics dashboards.
   cube:
-    profiles: ["xm"]
     restart: always
     image: cubejs/cube:v1.6.6
     depends_on:
@@ -319,6 +320,12 @@ services:
     volumes:
       - ./cube/cube.js:/cube/conf/cube.js:ro
       - ./cube/schema:/cube/conf/model:ro
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://localhost:4000/readyz"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 30s
 
 volumes:
   postgres:

docker/formbricks.sh

@@ -527,7 +527,6 @@ EOT
   hub_api_key=$(openssl rand -hex 32)
   cubejs_api_secret=$(openssl rand -hex 32)
 cat <<EOF > .env
-COMPOSE_PROFILES=xm
 HUB_API_KEY=$hub_api_key
 CUBEJS_API_SECRET=$cubejs_api_secret
 CUBEJS_JWT_ISSUER=formbricks-web

docs/self-hosting/advanced/migration.mdx

@@ -12,11 +12,12 @@ deployment, review this section before starting the new version.
 ### What Changes In v5
 
 - **Formbricks Hub is now mandatory** for self-hosted Formbricks v5 deployments.
+- **Cube is now part of the baseline stack** alongside Hub. Docker, one-click, and Helm all bundle Cube by
+  default; `CUBEJS_API_SECRET` is required. Operators can disable the bundled Cube deployment in Helm to use
+  an external cluster instead.
 - **Edge rate limiting is now required** for specific public and API-key routes. Those routes are no longer
   throttled inside the application server.
 - **AI features are configured at the instance level** via `AI_*` environment variables.
-- **XM Suite v5 analytics depends on Cube.js**. The Docker and one-click stack bundle it, while Helm
-  deployments still need a separate reachable Cube.js instance and `CUBEJS_API_SECRET`.
 
 <Warning>
   Formbricks v5 removes application-level rate limiting for several routes that are now expected to be
@@ -32,7 +33,8 @@ Before you restart your instance on Formbricks v5:
 - identify your current deployment type: one-click, manual Docker Compose, or Kubernetes/Helm
 - confirm Redis/Valkey and your file storage setup are already healthy from your v4 baseline
 - identify whether file uploads use external S3-compatible storage or a legacy bundled MinIO service
-- decide whether this instance needs AI features, dashboards/analysis, or only core survey flows
+- budget approximately ~500 MB additional RAM headroom for the bundled Cube container (dashboards and analysis are part of the baseline now)
+- decide whether this instance needs optional AI features
 - verify whether you already run Envoy Gateway or another equivalent edge rate limiter for the covered routes
 
 ### Required Config And Infrastructure Changes
@@ -75,13 +77,15 @@ enterprise functionality.
 - `AI_PROVIDER=azure` requires `AI_AZURE_API_KEY` and either `AI_AZURE_BASE_URL` or
   `AI_AZURE_RESOURCE_NAME`
 
-#### Cube.js Analytics
+#### Cube
 
-XM Suite v5 dashboard and analysis features require Cube.js.
+Cube is part of the baseline Formbricks v5 stack.
 
-- the Docker and one-click stack bundle the `cube` service and expect `CUBEJS_API_SECRET`
-- Helm deployments still need a separate reachable Cube.js instance
-- the Formbricks app expects `CUBEJS_API_URL` and `CUBEJS_API_SECRET`
+- the Docker, one-click, and Helm deployments all bundle the `cube` service by default
+- the Formbricks app requires `CUBEJS_API_URL` and `CUBEJS_API_SECRET`; the install/dev-setup scripts
+  generate the secret automatically for new installs
+- Helm operators who want to run an external Cube cluster can set `cube.enabled: false` and provide their
+  own endpoint via `deployment.env.CUBEJS_API_URL`
 - if you run Cube yourself, you may also need to override `CUBEJS_DB_*` values for the Cube service
 
 ### Upgrade Steps By Deployment Type
@@ -142,15 +146,15 @@ XM Suite v5 dashboard and analysis features require Cube.js.
     - add a non-empty `HUB_API_KEY` and reuse the same value wherever your deployment resolves Hub auth
     - keep `HUB_API_URL` at `http://hub:8080` unless Hub runs elsewhere
     - include the bundled `hub-migrate` and `hub` services
-    - if you use the bundled XM Suite v5 analytics stack, sync `formbricks/cube/cube.js` and
-      `formbricks/cube/schema/FeedbackRecords.js` from the current release and ensure
-      `formbricks/.env` contains `CUBEJS_API_SECRET`
+    - sync `formbricks/cube/cube.js` and `formbricks/cube/schema/FeedbackRecords.js` from the current
+      release and ensure `formbricks/.env` contains `CUBEJS_API_SECRET` (Cube is part of the baseline stack
+      in v5)
     - if your older setup still uses bundled MinIO for uploads, review that storage path separately before the
       first v5 restart; newer self-hosting updates move the bundled object-storage path to RustFS, while
       external S3-compatible storage keeps the same `S3_*` app contract
     - add any `AI_*` variables you need
-    - if you do not run the bundled Docker analytics path, point `CUBEJS_API_URL` at your external Cube.js
-      instance and provide the matching `CUBEJS_API_SECRET`
+    - if you prefer to run an external Cube instance, point `CUBEJS_API_URL` at it and provide the matching
+      `CUBEJS_API_SECRET`; otherwise the bundled `cube` service runs against the local Postgres
 
     After the compose file is updated and your edge rate limiter is in place:
 
@@ -171,15 +175,14 @@ XM Suite v5 dashboard and analysis features require Cube.js.
     - `HUB_API_KEY` is configured and the same value is available wherever your deployment resolves Hub auth
     - `HUB_API_URL` points to the Hub service the app can reach
     - the compose stack includes `hub-migrate` and `hub`
-    - the XM Suite v5 Docker stack also includes `cube`, `cube/cube.js`, and
-      `cube/schema/FeedbackRecords.js`, with `CUBEJS_API_SECRET` available through your `.env` or shell
-      environment
+    - the v5 stack also includes `cube`, `cube/cube.js`, and `cube/schema/FeedbackRecords.js`, with
+      `CUBEJS_API_SECRET` available through your `.env` or shell environment
     - if your legacy Compose file still includes bundled MinIO for uploads, treat that as a separate storage
       review when comparing files; newer bundled storage guidance uses RustFS, while external S3-compatible
       storage keeps the same `S3_*` app contract
     - any `AI_*` variables you need are set
-    - if you override the bundled analytics path, point `CUBEJS_API_URL` at your external Cube.js instance and
-      supply the matching `CUBEJS_API_SECRET`
+    - if you prefer to run an external Cube instance, point `CUBEJS_API_URL` at it and supply the matching
+      `CUBEJS_API_SECRET`; otherwise the bundled `cube` service runs against the local Postgres
 
     Then restart the stack:
 
@@ -190,8 +193,8 @@ XM Suite v5 dashboard and analysis features require Cube.js.
     ```
 
     <Info>
-      The XM Suite v5 Docker Compose stack bundles Hub and Cube.js. Keep the bundled `cube/` config files in
-      sync with `docker-compose.yml` when you update this path.
+      The v5 Docker Compose stack bundles Hub and Cube. Keep the bundled `cube/` config files in sync with
+      `docker-compose.yml` when you update this path.
     </Info>
   </Tab>
   <Tab title="Kubernetes">
@@ -211,8 +214,8 @@ XM Suite v5 dashboard and analysis features require Cube.js.
       - `envoy.controller.enabled=false` when the cluster already has a compatible Envoy Gateway controller
     - if you use bundled Envoy rate limiting, enable a dedicated backend with `envoyRedis.enabled=true`
     - if you already have an equivalent edge rate limiter outside the chart, keep that protection in place
-    - if the instance needs XM Suite v5 analytics or dashboards, provide `CUBEJS_API_URL` and
-      `CUBEJS_API_SECRET` for the external Cube.js deployment
+    - `CUBEJS_API_SECRET` is provided (Cube is bundled by default at `cube.enabled: true`; set to `false`
+      and point `CUBEJS_API_URL` at your own endpoint if you prefer an external Cube cluster)
   </Tab>
 </Tabs>
 
@@ -225,8 +228,7 @@ After the upgrade:
 - verify any Hub-backed connector or feedback flows you use
 - verify covered routes are rate-limited at the edge layer
 - verify AI features only if you configured the required `AI_*` variables
-- verify dashboards and analysis flows only if your deployment path includes Cube.js or points to an external
-  Cube.js instance
+- verify dashboards and analysis flows against the bundled (or external) Cube endpoint
 
 ### Troubleshooting And Rollback
 
@@ -238,7 +240,9 @@ Common upgrade issues:
   protected by the legacy in-app limiter
 - **Missing AI credentials**: AI features remain unavailable until `AI_PROVIDER`, `AI_MODEL`, and the matching
   provider credentials are set correctly
-- **Cube not configured**: dashboards or analysis queries fail even though the core Formbricks app is healthy
+- **Missing `CUBEJS_API_SECRET`** (or unreachable Cube endpoint): the Formbricks app fails env validation
+  at boot, or — if env vars are present but Cube is unreachable — dashboards and analysis queries fail
+  while the rest of the app stays healthy
 
 If you need to roll back:
 

docs/self-hosting/configuration/environment-variables.mdx

@@ -119,30 +119,30 @@ bundled Docker Compose or Helm assets, the following variables apply:
 | HUB_API_URL      | Base URL the Formbricks app uses to call Hub. With the bundled Docker stack, keep this at `http://hub:8080` unless Hub runs elsewhere.             | required | `http://hub:8080` (bundled Docker), `http://localhost:8080` (local dev) |
 | HUB_DATABASE_URL | PostgreSQL connection URL for Hub. Omit to use the same database as Formbricks.    | optional | Same as Formbricks `DATABASE_URL` (shared database) |
 
-#### Cube.js Analytics for XM Suite v5
+#### Cube Analytics
 
-XM Suite v5 dashboard and analysis features require a reachable Cube.js instance. Formbricks generates the backend
+Cube is part of the baseline Formbricks v5 stack and is required. Formbricks generates the backend
 Cube JWT from `CUBEJS_API_SECRET`, so `CUBEJS_API_TOKEN` is not part of the supported setup contract.
-If you do not use XM Suite v5 analytics, omit the Cube variables and leave the bundled Docker `xm` profile disabled.
 
-| Variable                  | Description                                                                                            | Required                           | Default                              |
-| ------------------------- | ------------------------------------------------------------------------------------------------------ | ---------------------------------- | ------------------------------------ |
-| CUBEJS_API_URL            | Base URL the Formbricks app uses to call Cube. Use `http://localhost:4000` locally.                    | required for XM Suite v5 analytics | `http://localhost:4000` in local dev |
-| CUBEJS_API_SECRET         | Shared secret Formbricks uses to sign Cube API JWTs. Generate with `openssl rand -hex 32`.             | required for XM Suite v5 analytics |                                      |
-| CUBEJS_JWT_ISSUER         | JWT issuer expected by Cube and used by Formbricks when signing per-request Cube tokens.               | optional                           | `formbricks-web`                     |
-| CUBEJS_JWT_AUDIENCE       | JWT audience expected by Cube and used by Formbricks when signing per-request Cube tokens.             | optional                           | `formbricks-cube`                    |
-| CUBEJS_DB_HOST            | Database host for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional                           | Depends on your Cube deployment      |
-| CUBEJS_DB_PORT            | Database port for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional                           | Depends on your Cube deployment      |
-| CUBEJS_DB_NAME            | Database name for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional                           | Depends on your Cube deployment      |
-| CUBEJS_DB_USER            | Database user for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional                           | Depends on your Cube deployment      |
-| CUBEJS_DB_PASS            | Database password for the Cube service. Only needed when you run Cube yourself and override defaults.  | optional                           | Depends on your Cube deployment      |
+| Variable                  | Description                                                                                            | Required | Default                              |
+| ------------------------- | ------------------------------------------------------------------------------------------------------ | -------- | ------------------------------------ |
+| CUBEJS_API_URL            | Base URL the Formbricks app uses to call Cube. Local dev (app on host): `http://localhost:4000`. Docker/container: `http://cube:4000` (service name). | required | |
+| CUBEJS_API_SECRET         | Shared secret Formbricks uses to sign Cube API JWTs. Generate with `openssl rand -hex 32`.             | required |                                      |
+| CUBEJS_JWT_ISSUER         | JWT issuer expected by Cube and used by Formbricks when signing per-request Cube tokens.               | optional | `formbricks-web`                     |
+| CUBEJS_JWT_AUDIENCE       | JWT audience expected by Cube and used by Formbricks when signing per-request Cube tokens.             | optional | `formbricks-cube`                    |
+| CUBEJS_DB_HOST            | Database host for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional | Depends on your Cube deployment      |
+| CUBEJS_DB_PORT            | Database port for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional | Depends on your Cube deployment      |
+| CUBEJS_DB_NAME            | Database name for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional | Depends on your Cube deployment      |
+| CUBEJS_DB_USER            | Database user for the Cube service. Only needed when you run Cube yourself and override defaults.      | optional | Depends on your Cube deployment      |
+| CUBEJS_DB_PASS            | Database password for the Cube service. Only needed when you run Cube yourself and override defaults.  | optional | Depends on your Cube deployment      |
 
 The bundled Docker Compose Cube service sets `CUBEJS_DEFAULT_API_SCOPES=meta,data` directly on the Cube
 container. If you run Cube outside the bundled Compose stack, configure the equivalent Cube service environment
 there rather than adding it to the Formbricks app environment.
 
-For Helm deployments, Formbricks does not deploy Cube for you in this chart. Provide an external Cube endpoint with
-`CUBEJS_API_URL` and supply `CUBEJS_API_SECRET` through your existing secret management setup.
+For Helm deployments, the chart deploys Cube by default (`cube.enabled: true`). To use an external Cube
+cluster instead, set `cube.enabled: false`, point `CUBEJS_API_URL` at your endpoint, and supply
+`CUBEJS_API_SECRET` through your existing secret management setup.
 
 <!-- prettier-ignore-end -->
 

docs/self-hosting/setup/docker.mdx

@@ -16,8 +16,8 @@ Make sure Docker and Docker Compose are installed on your system. These are usua
 </Note>
 
 <Info>
-  Starting with Formbricks v5, the production Docker Compose stack includes Formbricks Hub and the XM Suite v5
-  Cube.js services. Generate `HUB_API_KEY` and `CUBEJS_API_SECRET` during setup, keep `HUB_API_URL` at its
+  Starting with Formbricks v5, the production Docker Compose stack includes Formbricks Hub and Cube as part of
+  the baseline. Generate `HUB_API_KEY` and `CUBEJS_API_SECRET` during setup, keep `HUB_API_URL` at its
   internal default unless Hub runs elsewhere, and use the [migration guide](/self-hosting/advanced/migration#v5)
   when upgrading an existing 4.x instance.
 </Info>
@@ -34,7 +34,7 @@ Make sure Docker and Docker Compose are installed on your system. These are usua
 
 1. **Download the Docker Files**
 
-   Get the Docker Compose file plus the Cube.js configuration shipped with the XM Suite v5 stack:
+   Get the Docker Compose file plus the Cube configuration shipped with the baseline stack:
 
    ```bash
    mkdir -p cube/schema
@@ -43,15 +43,12 @@ Make sure Docker and Docker Compose are installed on your system. These are usua
    curl -o cube/schema/FeedbackRecords.js https://raw.githubusercontent.com/formbricks/formbricks/stable/docker/cube/schema/FeedbackRecords.js
    ```
 
-1. **Generate Hub Secret and Optional Cube Secret**
+1. **Generate Hub and Cube Secrets**
 
-   Formbricks Hub requires an API key. XM Suite v5 analytics also requires Cube.js; set the optional `xm`
-   Compose profile and Cube secret when you want to run the bundled Cube service. For a Hub-only stack, create
-   `.env` with just `HUB_API_KEY` and omit `COMPOSE_PROFILES` and `CUBEJS_API_SECRET`.
+   Formbricks Hub and Cube each require a shared secret. Create `.env` with both:
 
    ```bash
    cat <<EOF > .env
-   COMPOSE_PROFILES=xm
    HUB_API_KEY=$(openssl rand -hex 32)
    CUBEJS_API_SECRET=$(openssl rand -hex 32)
    CUBEJS_JWT_ISSUER=formbricks-web
@@ -133,8 +130,7 @@ Make sure Docker and Docker Compose are installed on your system. These are usua
 1. **Start the Docker Setup**
 
    Now, you're ready to run Formbricks with Docker. Use the command below to start Formbricks together with
-   PostgreSQL, Redis, and Formbricks Hub. If the `xm` profile is set in `.env`, Docker Compose also starts Cube.js
-   for XM Suite v5 analytics.
+   PostgreSQL, Redis, Formbricks Hub, and Cube.
 
    ```bash
    docker compose up -d
@@ -147,8 +143,8 @@ Make sure Docker and Docker Compose are installed on your system. These are usua
    Once the setup is running, open [**http://localhost:3000**](http://localhost:3000) in your browser to access Formbricks. The first time you visit, you'll see a setup wizard. Follow the steps to create your first user and start using Formbricks.
 
 <Note>
-  The bundled Docker stack keeps Formbricks Hub internal to the compose network. When the `xm` profile is
-  enabled, Cube.js is internal too. The app reaches them through `http://hub:8080` and `http://cube:4000`.
+  The bundled Docker stack keeps Formbricks Hub and Cube internal to the compose network. The app reaches
+  them through `http://hub:8080` and `http://cube:4000`.
 </Note>
 
 <Info>
@@ -164,8 +160,8 @@ Please take a look at our [migration guide](/self-hosting/advanced/migration) fo
 
 <Info>
   For a major migration such as Formbricks 4.x to 5.0, update your compose structure and configuration first.
-  Pulling images alone is not enough if your stack does not yet include Hub, `HUB_API_KEY`, the bundled
-  `cube/` config files plus `CUBEJS_API_SECRET`, or the new edge rate-limiting setup.
+  Pulling images alone is not enough if your stack does not yet include Hub (`HUB_API_KEY`), Cube (`cube/`
+  config files plus `CUBEJS_API_SECRET`), or the new edge rate-limiting setup.
 </Info>
 
 1. Pull the latest Formbricks image

docs/self-hosting/setup/kubernetes.mdx

@@ -109,13 +109,14 @@ envoyRedis:
 
 This keeps Envoy rate-limiting state separate from the application's own Redis traffic.
 
-### Cube Is Optional
+### Cube
 
-Cube is only needed for analytics dashboards or other analysis flows that depend on Cube queries.
+Cube is part of the baseline Formbricks v5 stack and is bundled with the chart by default
+(`cube.enabled: true`). To run an external Cube cluster instead:
 
-- deploy Cube separately when you need it
-- configure `CUBEJS_API_URL` and `CUBEJS_API_SECRET` for the Formbricks app
-- do not expect the main Formbricks chart to provision Cube automatically
+- set `cube.enabled: false` to skip the bundled Cube deployment
+- point the app at your external endpoint via `deployment.env.CUBEJS_API_URL`
+- supply `CUBEJS_API_SECRET` via `deployment.env` or `deployment.envFrom`
 
 ## 4. Upgrade The Deployment
 
@@ -133,7 +134,8 @@ For a Formbricks 4.x to 5.0 migration, confirm the following before running the
 - `HUB_API_KEY` is present
 - your edge rate-limiting plan is in place
 - any required `AI_*` variables are added
-- Cube is configured only if this instance needs analytics dashboards or analysis queries
+- `CUBEJS_API_SECRET` is configured (Cube is bundled by default; provide an external endpoint if you set
+  `cube.enabled: false`)
 
 ## 5. Key Values
 

docs/self-hosting/setup/one-click.mdx

@@ -53,8 +53,8 @@ curl -fsSL https://raw.githubusercontent.com/formbricks/formbricks/stable/docker
 ```
 
 <Info>
-  The current v5 one-click stack is based on the production Docker Compose file and includes Formbricks Hub plus
-  the bundled XM Suite v5 Cube.js files under `formbricks/cube/`. Ensure your generated
+  The current v5 one-click stack is based on the production Docker Compose file and includes Formbricks Hub
+  and Cube as part of the baseline (Cube configuration lives under `formbricks/cube/`). Ensure your generated
   `formbricks/docker-compose.yml` contains a non-empty `HUB_API_KEY` and that `formbricks/.env` contains
   `CUBEJS_API_SECRET` before treating the v5 stack as ready. If either value is missing after the script
   finishes, add it manually. `HUB_API_URL` should normally stay at `http://hub:8080`.

packages/types/errors.ts

@@ -31,14 +31,6 @@ class ValidationError extends Error {
   }
 }
 
-class ConfigurationError extends Error {
-  statusCode = 503;
-  constructor(message: string) {
-    super(message);
-    this.name = "ConfigurationError";
-  }
-}
-
 class QueryExecutionError extends Error {
   statusCode = 500;
   constructor(message: string) {
@@ -151,7 +143,6 @@ export {
   ResourceNotFoundError,
   InvalidInputError,
   ValidationError,
-  ConfigurationError,
   QueryExecutionError,
   DatabaseError,
   UniqueConstraintError,
@@ -181,7 +172,6 @@ export const EXPECTED_ERROR_NAMES = new Set([
   "AuthorizationError",
   "InvalidInputError",
   "ValidationError",
-  "ConfigurationError",
   "QueryExecutionError",
   "AuthenticationError",
   "OperationNotAllowedError",

packages/types/surveys/types.ts

@@ -278,11 +278,13 @@ export const ZSurveyRecaptcha = z
 
 export type TSurveyRecaptcha = z.infer<typeof ZSurveyRecaptcha>;
 
-export const ZSurveyMetadata = z.object({
-  title: ZI18nString.optional(),
-  description: ZI18nString.optional(),
-  ogImage: ZStorageUrl.optional(),
-});
+export const ZSurveyMetadata = z
+  .object({
+    title: ZI18nString.optional(),
+    description: ZI18nString.optional(),
+    ogImage: ZStorageUrl.optional(),
+  })
+  .catchall(z.unknown());
 
 export type TSurveyMetadata = z.infer<typeof ZSurveyMetadata>;
 

turbo.json

@@ -1,237 +1,135 @@
 {
   "$schema": "https://turborepo.org/schema.json",
+  "globalEnv": [],
   "tasks": {
     "@formbricks/ai#build": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["@formbricks/logger#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/ai#lint": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/ai#test": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/ai#test:coverage": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/cache#build": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["@formbricks/logger#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/cache#go": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/cache#lint": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/cache#test": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/cache#test:coverage": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/database#build": {
-      "dependsOn": [
-        "^build"
-      ],
-      "outputs": [
-        "dist/**",
-        "../../node_modules/.prisma/client/**"
-      ]
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**", "../../node_modules/.prisma/client/**"]
     },
     "@formbricks/database#lint": {
-      "dependsOn": [
-        "@formbricks/logger#build",
-        "@formbricks/database#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build", "@formbricks/database#build"]
     },
     "@formbricks/email#build": {
-      "dependsOn": [
-        "^build"
-      ],
+      "dependsOn": ["^build"],
       "outputs": []
     },
     "@formbricks/i18n-utils#build": {
-      "dependsOn": [
-        "^build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/i18n-utils#lint": {
-      "dependsOn": [
-        "^lint"
-      ]
+      "dependsOn": ["^lint"]
     },
     "@formbricks/i18n-utils#test": {
-      "dependsOn": [
-        "@formbricks/i18n-utils#build"
-      ]
+      "dependsOn": ["@formbricks/i18n-utils#build"]
     },
     "@formbricks/jobs#build": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["@formbricks/logger#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/jobs#lint": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/jobs#test": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/jobs#test:coverage": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/js-core#build": {
-      "dependsOn": [
-        "^build",
-        "@formbricks/database#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build", "@formbricks/database#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/js-core#go": {
       "cache": false,
-      "dependsOn": [
-        "@formbricks/database#db:setup"
-      ],
+      "dependsOn": ["@formbricks/database#db:setup"],
       "persistent": true
     },
     "@formbricks/js-core#lint": {
-      "dependsOn": [
-        "@formbricks/database#build"
-      ]
+      "dependsOn": ["@formbricks/database#build"]
     },
     "@formbricks/logger#build": {
-      "dependsOn": [
-        "^build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/storage#build": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["@formbricks/logger#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/storage#go": {
       "cache": false,
-      "dependsOn": [
-        "@formbricks/storage#build"
-      ],
+      "dependsOn": ["@formbricks/storage#build"],
       "persistent": true
     },
     "@formbricks/storage#lint": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/storage#test": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/storage#test:coverage": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "@formbricks/survey-ui#build": {
-      "dependsOn": [
-        "^build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/survey-ui#build:dev": {
-      "dependsOn": [
-        "^build:dev"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build:dev"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/survey-ui#go": {
       "cache": false,
-      "dependsOn": [
-        "@formbricks/survey-ui#build"
-      ],
+      "dependsOn": ["@formbricks/survey-ui#build"],
       "persistent": true
     },
     "@formbricks/surveys#build": {
-      "dependsOn": [
-        "^build",
-        "@formbricks/survey-ui#build"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build", "@formbricks/survey-ui#build"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/surveys#build:dev": {
-      "dependsOn": [
-        "^build:dev",
-        "@formbricks/i18n-utils#build",
-        "@formbricks/survey-ui#build:dev"
-      ],
-      "outputs": [
-        "dist/**"
-      ]
+      "dependsOn": ["^build:dev", "@formbricks/i18n-utils#build", "@formbricks/survey-ui#build:dev"],
+      "outputs": ["dist/**"]
     },
     "@formbricks/surveys#go": {
       "cache": false,
-      "dependsOn": [
-        "@formbricks/survey-ui#build",
-        "@formbricks/surveys#build"
-      ],
+      "dependsOn": ["@formbricks/survey-ui#build", "@formbricks/surveys#build"],
       "persistent": true
     },
     "@formbricks/surveys#test": {
-      "dependsOn": [
-        "@formbricks/survey-ui#build"
-      ]
+      "dependsOn": ["@formbricks/survey-ui#build"]
     },
     "@formbricks/surveys#test:coverage": {
-      "dependsOn": [
-        "@formbricks/survey-ui#build"
-      ]
+      "dependsOn": ["@formbricks/survey-ui#build"]
     },
     "@formbricks/web#dev": {
       "cache": false,
@@ -281,9 +179,7 @@
       ]
     },
     "build": {
-      "dependsOn": [
-        "^build"
-      ],
+      "dependsOn": ["^build"],
       "env": [
         "AUDIT_LOG_ENABLED",
         "AUDIT_LOG_GET_USER_IP",
@@ -428,19 +324,11 @@
         "PROMETHEUS_EXPORTER_PORT",
         "USER_MANAGEMENT_MINIMUM_ROLE"
       ],
-      "outputs": [
-        "dist/**",
-        ".next/**"
-      ]
+      "outputs": ["dist/**", ".next/**"]
     },
     "build:dev": {
-      "dependsOn": [
-        "^build:dev"
-      ],
-      "outputs": [
-        "dist/**",
-        ".next/**"
-      ]
+      "dependsOn": ["^build:dev"],
+      "outputs": ["dist/**", ".next/**"]
     },
     "clean": {
       "cache": false,
@@ -462,17 +350,12 @@
       "outputs": []
     },
     "db:seed": {
-      "env": [
-        "ALLOW_SEED"
-      ],
+      "env": ["ALLOW_SEED"],
       "outputs": []
     },
     "db:setup": {
       "cache": false,
-      "dependsOn": [
-        "@formbricks/logger#build",
-        "@formbricks/database#build"
-      ],
+      "dependsOn": ["@formbricks/logger#build", "@formbricks/database#build"],
       "outputs": []
     },
     "db:start": {
@@ -487,9 +370,7 @@
       "persistent": true
     },
     "generate": {
-      "dependsOn": [
-        "^generate"
-      ]
+      "dependsOn": ["^generate"]
     },
     "go": {
       "cache": false,
@@ -506,9 +387,7 @@
       "persistent": true
     },
     "storybook#storybook": {
-      "dependsOn": [
-        "@formbricks/logger#build"
-      ]
+      "dependsOn": ["@formbricks/logger#build"]
     },
     "test": {
       "outputs": []
@@ -517,6 +396,5 @@
       "outputs": []
     }
   },
-  "ui": "stream",
-  "globalEnv": []
+  "ui": "stream"
 }