diff --git a/packages/lib/services/actions.ts b/packages/lib/services/actions.ts
index ffa8b2475a..08038ba032 100644
--- a/packages/lib/services/actions.ts
+++ b/packages/lib/services/actions.ts
@@ -2,7 +2,7 @@ import "server-only";
 
 import z from "zod";
 import { prisma } from "@formbricks/database";
-import { DatabaseError } from "@formbricks/types/v1/errors";
+import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/v1/errors";
 import { TAction } from "@formbricks/types/v1/actions";
 import { ZId } from "@formbricks/types/v1/environment";
 import { Prisma } from "@prisma/client";
@@ -65,7 +65,7 @@ export const createAction = async (data: TJsActionInput) => {
   const session = await getSessionCached(sessionId);
 
   if (!session) {
-    throw new Error("Session not found");
+    throw new ResourceNotFoundError("Session", sessionId);
   }
 
   const actionClass = await getActionClassCached(name, environmentId);
diff --git a/packages/lib/services/activity.tsx b/packages/lib/services/activity.tsx
index 55ba044ffd..c9215812f6 100644
--- a/packages/lib/services/activity.tsx
+++ b/packages/lib/services/activity.tsx
@@ -5,6 +5,7 @@ import { TActivityFeedItem } from "@formbricks/types/v1/activity";
 import { validateInputs } from "../utils/validate";
 import { ZId } from "@formbricks/types/v1/environment";
 import { cache } from "react";
+import { ResourceNotFoundError } from "@formbricks/types/v1/errors";
 
 export const getActivityTimeline = cache(async (personId: string): Promise<TActivityFeedItem[]> => {
   validateInputs([personId, ZId]);
@@ -34,8 +35,9 @@ export const getActivityTimeline = cache(async (personId: string): Promise<TActi
       },
     },
   });
+
   if (!person) {
-    throw new Error("No such person found");
+    throw new ResourceNotFoundError("Person", personId);
   }
   const { attributes, displays, sessions } = person;
 
diff --git a/packages/lib/services/displays.ts b/packages/lib/services/displays.ts
index 5cbe1983d9..af7610a198 100644
--- a/packages/lib/services/displays.ts
+++ b/packages/lib/services/displays.ts
@@ -92,7 +92,9 @@ export const createDisplay = async (displayInput: TDisplayInput): Promise<TDispl
 export const markDisplayResponded = async (displayId: string): Promise<TDisplay> => {
   validateInputs([displayId, ZId]);
   try {
-    if (!displayId) throw new Error("Display ID is required");
+    if (!displayId) {
+      throw new ResourceNotFoundError("Display", displayId);
+    }
 
     const displayPrisma = await prisma.display.update({
       where: {
diff --git a/packages/lib/services/googleSheet.ts b/packages/lib/services/googleSheet.ts
index 1f8900a889..c7daae2b2b 100644
--- a/packages/lib/services/googleSheet.ts
+++ b/packages/lib/services/googleSheet.ts
@@ -2,7 +2,7 @@ import "server-only";
 
 import { prisma } from "@formbricks/database";
 import { Prisma } from "@prisma/client";
-import { DatabaseError } from "@formbricks/types/v1/errors";
+import { DatabaseError, UnknownError } from "@formbricks/types/v1/errors";
 import { cache } from "react";
 import {
   TGoogleCredential,
@@ -89,8 +89,7 @@ export async function writeData(credentials: TGoogleCredential, spreadsheetId: s
       },
       (err: Error) => {
         if (err) {
-          throw new Error(`Error while appending data: ${err.message}`);
-        } else {
+          throw new UnknownError(`Error while appending data: ${err.message}`);
         }
       }
     );
@@ -104,8 +103,7 @@ export async function writeData(credentials: TGoogleCredential, spreadsheetId: s
       },
       (err: Error) => {
         if (err) {
-          throw new Error(`Error while appending data: ${err.message}`);
-        } else {
+          throw new UnknownError(`Error while appending data: ${err.message}`);
         }
       }
     );
diff --git a/packages/lib/services/membership.ts b/packages/lib/services/membership.ts
index 16f0123aaa..470cc72280 100644
--- a/packages/lib/services/membership.ts
+++ b/packages/lib/services/membership.ts
@@ -1,7 +1,7 @@
 import "server-only";
 
 import { prisma } from "@formbricks/database";
-import { ResourceNotFoundError } from "@formbricks/types/v1/errors";
+import { ResourceNotFoundError, DatabaseError, UnknownError } from "@formbricks/types/v1/errors";
 import { TMember, TMembership, TMembershipUpdateInput } from "@formbricks/types/v1/memberships";
 import { Prisma } from "@prisma/client";
 import { cache } from "react";
@@ -102,9 +102,9 @@ export const updateMembership = async (
   } catch (error) {
     if (error instanceof Prisma.PrismaClientKnownRequestError && error.code === "P2016") {
       throw new ResourceNotFoundError("Membership", `userId: ${userId}, teamId: ${teamId}`);
-    } else {
-      throw error; // Re-throw any other errors
     }
+
+    throw error;
   }
 };
 
@@ -148,6 +148,11 @@ export const transferOwnership = async (currentOwnerId: string, newOwnerId: stri
       }),
     ]);
   } catch (error) {
-    throw new Error("Something went wrong");
+    if (error instanceof Prisma.PrismaClientKnownRequestError) {
+      throw new DatabaseError("Database operation failed");
+    }
+
+    const message = error instanceof Error ? error.message : "";
+    throw new UnknownError(`Error while transfering ownership: ${message}`);
   }
 };
diff --git a/packages/lib/services/person.ts b/packages/lib/services/person.ts
index 21a89535b9..ae5bb4c0b2 100644
--- a/packages/lib/services/person.ts
+++ b/packages/lib/services/person.ts
@@ -2,7 +2,7 @@ import "server-only";
 
 import { prisma } from "@formbricks/database";
 import { ZId } from "@formbricks/types/v1/environment";
-import { DatabaseError } from "@formbricks/types/v1/errors";
+import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/v1/errors";
 import { TPerson, TPersonUpdateInput } from "@formbricks/types/v1/people";
 import { Prisma } from "@prisma/client";
 import { revalidateTag, unstable_cache } from "next/cache";
@@ -250,7 +250,7 @@ export const getOrCreatePersonByUserId = async (userId: string, environmentId: s
     const userIdAttributeClass = await getAttributeClassByName(environmentId, "userId");
 
     if (!userIdAttributeClass) {
-      throw new Error("Attribute class not found for the given environmentId");
+      throw new ResourceNotFoundError("Attribute class not found for the given environment", environmentId);
     }
 
     const personPrisma = await prisma.person.create({
diff --git a/packages/lib/services/team.ts b/packages/lib/services/team.ts
index 63883dca4b..c7371ecc83 100644
--- a/packages/lib/services/team.ts
+++ b/packages/lib/services/team.ts
@@ -2,7 +2,7 @@ import "server-only";
 
 import { prisma } from "@formbricks/database";
 import { ZId } from "@formbricks/types/v1/environment";
-import { DatabaseError, ResourceNotFoundError } from "@formbricks/types/v1/errors";
+import { DatabaseError, ResourceNotFoundError, ValidationError } from "@formbricks/types/v1/errors";
 import { TTeam, TTeamUpdateInput } from "@formbricks/types/v1/teams";
 import { createId } from "@paralleldrive/cuid2";
 import { Prisma } from "@prisma/client";
@@ -245,7 +245,7 @@ export const createDemoProduct = async (teamId: string) => {
 
   // check if updatedEnvironment exists and it has attributeClasses
   if (!updatedEnvironment || !updatedEnvironment.attributeClasses) {
-    throw new Error("Attribute classes could not be created");
+    throw new ValidationError("Attribute classes could not be created");
   }
 
   const attributeClasses = updatedEnvironment.attributeClasses;
@@ -332,8 +332,12 @@ export const createDemoProduct = async (teamId: string) => {
         })),
       }),
     ]);
-  } catch (err: any) {
-    throw new Error(err);
+  } catch (error: any) {
+    if (error instanceof Prisma.PrismaClientKnownRequestError) {
+      throw new DatabaseError("Database operation failed");
+    }
+
+    throw error;
   }
 
   // Create a function that creates a survey
diff --git a/packages/types/v1/errors.ts b/packages/types/v1/errors.ts
index e86054c477..1d2e8ee850 100644
--- a/packages/types/v1/errors.ts
+++ b/packages/types/v1/errors.ts
@@ -22,6 +22,14 @@ class ValidationError extends Error {
   }
 }
 
+class UnknownError extends Error {
+  statusCode = 500;
+  constructor(message: string) {
+    super(message);
+    this.name = "DatabaseError";
+  }
+}
+
 class DatabaseError extends Error {
   statusCode = 500;
   constructor(message: string) {
@@ -83,6 +91,7 @@ export {
   ValidationError,
   DatabaseError,
   UniqueConstraintError,
+  UnknownError,
   ForeignKeyConstraintError,
   OperationNotAllowedError,
   AuthenticationError,