diff --git a/e2e/src/specs/server/api/album.e2e-spec.ts b/e2e/src/specs/server/api/album.e2e-spec.ts
index a9e90940ab..d2b6b9befb 100644
--- a/e2e/src/specs/server/api/album.e2e-spec.ts
+++ b/e2e/src/specs/server/api/album.e2e-spec.ts
@@ -424,6 +424,7 @@ describe('/albums', () => {
         description: '',
         albumThumbnailAssetId: null,
         shared: false,
+        isFavorite: false,
         albumUsers: [],
         hasSharedLink: false,
         assets: [],
@@ -540,6 +541,44 @@ describe('/albums', () => {
     });
   });
 
+  describe('PATCH /albums/:id/user-metadata', () => {
+    it('should toggle favorite status per user on a shared album', async () => {
+      const before = await getAlbumInfo({ id: user1Albums[3].id }, { headers: asBearerAuth(user2.accessToken) });
+      expect(before.isFavorite).toBe(false);
+
+      const favoriteResponse = await request(app)
+        .patch(`/albums/${user1Albums[3].id}/user-metadata`)
+        .set('Authorization', `Bearer ${user2.accessToken}`)
+        .send({ isFavorite: true });
+
+      expect(favoriteResponse.status).toBe(200);
+      expect(favoriteResponse.body).toMatchObject({ id: user1Albums[3].id, isFavorite: true });
+
+      const favoritedForViewer = await getAlbumInfo(
+        { id: user1Albums[3].id },
+        { headers: asBearerAuth(user2.accessToken) },
+      );
+      const unchangedForOwner = await getAlbumInfo(
+        { id: user1Albums[3].id },
+        { headers: asBearerAuth(user1.accessToken) },
+      );
+
+      expect(favoritedForViewer.isFavorite).toBe(true);
+      expect(unchangedForOwner.isFavorite).toBe(false);
+
+      const unfavoriteResponse = await request(app)
+        .patch(`/albums/${user1Albums[3].id}/user-metadata`)
+        .set('Authorization', `Bearer ${user2.accessToken}`)
+        .send({ isFavorite: false });
+
+      expect(unfavoriteResponse.status).toBe(200);
+      expect(unfavoriteResponse.body).toMatchObject({ id: user1Albums[3].id, isFavorite: false });
+
+      const after = await getAlbumInfo({ id: user1Albums[3].id }, { headers: asBearerAuth(user2.accessToken) });
+      expect(after.isFavorite).toBe(false);
+    });
+  });
+
   describe('DELETE /albums/:id/assets', () => {
     it('should require authorization', async () => {
       const { status, body } = await request(app)
diff --git a/e2e/src/ui/generators/timeline/rest-response.ts b/e2e/src/ui/generators/timeline/rest-response.ts
index 0c4bd06dc3..607d98a880 100644
--- a/e2e/src/ui/generators/timeline/rest-response.ts
+++ b/e2e/src/ui/generators/timeline/rest-response.ts
@@ -427,6 +427,7 @@ export function getAlbum(
     albumUsers: [], // Empty array for non-shared album
     shared: false,
     hasSharedLink: false,
+    isFavorite: false,
     isActivityEnabled: true,
     assetCount: albumAssets.length,
     assets: albumAssets,