diff --git a/tests/acceptance/features/apiSharingNg/mountOrUnmountShare.feature b/tests/acceptance/features/apiSharingNg/mountOrUnmountShare.feature
index 72b860deb2..9439ffd461 100644
--- a/tests/acceptance/features/apiSharingNg/mountOrUnmountShare.feature
+++ b/tests/acceptance/features/apiSharingNg/mountOrUnmountShare.feature
@@ -86,3 +86,65 @@ Feature:  mount or unmount incoming share
       | resource      |
       | textfile0.txt |
       | folder        |
+
+
+  Scenario Outline: enable a group share sync by only one user in a group
+    Given user "Carol" has been created with default attributes and without skeleton files
+    And group "grp1" has been created
+    And user "Alice" has been added to group "grp1"
+    And user "Brian" has been added to group "grp1"
+    And user "Alice" has disabled the auto-sync share
+    And user "Brian" has disabled the auto-sync share
+    And user "Carol" has uploaded file with content "hello world" to "/textfile0.txt"
+    And user "Carol" has created folder "FolderToShare"
+    And user "Carol" has sent the following share invitation:
+      | resource        | <resource> |
+      | space           | Personal   |
+      | sharee          | grp1       |
+      | shareType       | group      |
+      | permissionsRole | Viewer     |
+    When user "Alice" mounts share "<resource>" offered by "Carol" from "Personal" space using the Graph API
+    Then the HTTP status code should be "201"
+    And the JSON data of the response should match
+      """
+      {
+        "type": "object",
+        "required": [
+          "@client.synchronize"
+        ],
+        "properties": {
+          "@client.synchronize": {
+            "const": true
+          }
+        }
+      }
+      """
+    And user "Alice" should have sync enabled for share "<resource>"
+    And user "Brian" should have sync disabled for share "<resource>"
+    Examples:
+      | resource      |
+      | textfile0.txt |
+      | FolderToShare |
+
+
+  Scenario Outline: disable group share sync by only one user in a group
+    Given user "Carol" has been created with default attributes and without skeleton files
+    And group "grp1" has been created
+    And user "Alice" has been added to group "grp1"
+    And user "Brian" has been added to group "grp1"
+    And user "Carol" has created folder "FolderToShare"
+    And user "Carol" has uploaded file with content "hello world" to "/textfile0.txt"
+    And user "Carol" has sent the following share invitation:
+      | resource        | <resource> |
+      | space           | Personal   |
+      | sharee          | grp1       |
+      | shareType       | group      |
+      | permissionsRole | Viewer     |
+    When user "Alice" unmounts share "<resource>" using the Graph API
+    Then the HTTP status code should be "200"
+    And user "Alice" should have sync disabled for share "<resource>"
+    And user "Brian" should have sync enabled for share "<resource>"
+    Examples:
+      | resource      |
+      | textfile0.txt |
+      | FolderToShare |
diff --git a/tests/acceptance/features/bootstrap/SharingNgContext.php b/tests/acceptance/features/bootstrap/SharingNgContext.php
index a972082ffc..a860d9fe48 100644
--- a/tests/acceptance/features/bootstrap/SharingNgContext.php
+++ b/tests/acceptance/features/bootstrap/SharingNgContext.php
@@ -620,4 +620,38 @@ class SharingNgContext implements Context {
 		);
 		$this->featureContext->setResponse($response);
 	}
+
+	/**
+	 * @Then /^user "([^"]*)" should have sync (enabled|disabled) for share "([^"]*)"$/
+	 *
+	 * @param string $user
+	 * @param string $status
+	 * @param string $resource
+	 *
+	 * @return void
+	 * @throws \GuzzleHttp\Exception\GuzzleException
+	 */
+	public function userShouldHaveSyncEnabledOrDisabledForShare(string $user, string $status, string $resource):void {
+		$response = GraphHelper::getSharesSharedWithMe(
+			$this->featureContext->getBaseUrl(),
+			$this->featureContext->getStepLineRef(),
+			$user,
+			$this->featureContext->getPasswordForUser($user)
+		);
+		$responseBody = $this->featureContext->getJsonDecodedResponse($response);
+		$expectedValue = $status === "enabled" ? "true" : "false";
+		foreach ($responseBody["value"] as $value) {
+			if ($value["remoteItem"]["name"] === $resource) {
+				// var_export converts values to their string representations
+				// e.g.: true -> 'true'
+				$actaulValue = var_export($value["@client.synchronize"], true);
+				break;
+			}
+		}
+		Assert::assertSame(
+			$actaulValue,
+			$expectedValue,
+			"Expected property '@client.synchronize' to be '$expectedValue' but found '$actaulValue'"
+		);
+	}
 }