diff --git a/packages/twenty-server/src/engine/core-modules/user/services/__tests__/workspace-member-transpiler.service.spec.ts b/packages/twenty-server/src/engine/core-modules/user/services/__tests__/workspace-member-transpiler.service.spec.ts
new file mode 100644
index 0000000000..d32946aa3a
--- /dev/null
+++ b/packages/twenty-server/src/engine/core-modules/user/services/__tests__/workspace-member-transpiler.service.spec.ts
@@ -0,0 +1,78 @@
+import { Test, type TestingModule } from '@nestjs/testing';
+
+import { OpenRecordIn } from 'twenty-shared/types';
+
+import { FileUrlService } from 'src/engine/core-modules/file/file-url/file-url.service';
+import { type UserWorkspaceEntity } from 'src/engine/core-modules/user-workspace/user-workspace.entity';
+import { WorkspaceMemberTranspiler } from 'src/engine/core-modules/user/services/workspace-member-transpiler.service';
+import { type WorkspaceMemberWorkspaceEntity } from 'src/modules/workspace-member/standard-objects/workspace-member.workspace-entity';
+
+const buildWorkspaceMemberEntity = (
+  overrides: Partial<WorkspaceMemberWorkspaceEntity> = {},
+) =>
+  ({
+    id: '20202020-0687-4c41-b707-ed1bfca972a7',
+    name: { firstName: 'Tim', lastName: 'Apple' },
+    userEmail: 'tim@apple.dev',
+    colorScheme: 'System',
+    openRecordIn: OpenRecordIn.RECORD_PAGE,
+    locale: 'en',
+    avatarUrl: null,
+    timeFormat: 'SYSTEM',
+    timeZone: 'system',
+    dateFormat: 'SYSTEM',
+    calendarStartDay: 0,
+    numberFormat: 'SYSTEM',
+    ...overrides,
+  }) as unknown as WorkspaceMemberWorkspaceEntity;
+
+const userWorkspace = {
+  id: '20202020-9e3b-46d4-a556-88b9ddc2b034',
+  workspaceId: '20202020-1c25-4d02-bf25-6aeccf7ea419',
+} as UserWorkspaceEntity;
+
+describe('WorkspaceMemberTranspiler', () => {
+  let transpiler: WorkspaceMemberTranspiler;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        WorkspaceMemberTranspiler,
+        {
+          provide: FileUrlService,
+          useValue: { signFileByIdUrl: jest.fn().mockResolvedValue('') },
+        },
+      ],
+    }).compile();
+
+    transpiler = module.get<WorkspaceMemberTranspiler>(
+      WorkspaceMemberTranspiler,
+    );
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('should preserve openRecordIn when the workspace member has one', async () => {
+    const dto = await transpiler.toWorkspaceMemberDto({
+      userWorkspace,
+      workspaceMemberEntity: buildWorkspaceMemberEntity(),
+      userWorkspaceRoles: [],
+    });
+
+    expect(dto.openRecordIn).toBe(OpenRecordIn.RECORD_PAGE);
+  });
+
+  it('should fall back to SIDE_PANEL when the workspace has not been upgraded yet', async () => {
+    const dto = await transpiler.toWorkspaceMemberDto({
+      userWorkspace,
+      workspaceMemberEntity: buildWorkspaceMemberEntity({
+        openRecordIn: undefined as unknown as string,
+      }),
+      userWorkspaceRoles: [],
+    });
+
+    expect(dto.openRecordIn).toBe(OpenRecordIn.SIDE_PANEL);
+  });
+});
diff --git a/packages/twenty-server/src/engine/core-modules/user/services/workspace-member-transpiler.service.ts b/packages/twenty-server/src/engine/core-modules/user/services/workspace-member-transpiler.service.ts
index 4bf3820f0c..c516b51fed 100644
--- a/packages/twenty-server/src/engine/core-modules/user/services/workspace-member-transpiler.service.ts
+++ b/packages/twenty-server/src/engine/core-modules/user/services/workspace-member-transpiler.service.ts
@@ -16,7 +16,7 @@ import {
   type WorkspaceMemberTimeFormatEnum,
   type WorkspaceMemberWorkspaceEntity,
 } from 'src/modules/workspace-member/standard-objects/workspace-member.workspace-entity';
-import { FileFolder, type OpenRecordIn } from 'twenty-shared/types';
+import { FileFolder, OpenRecordIn } from 'twenty-shared/types';
 
 export type ToWorkspaceMemberDtoArgs = {
   workspaceMemberEntity: WorkspaceMemberWorkspaceEntity;
@@ -99,7 +99,9 @@ export class WorkspaceMemberTranspiler {
       avatarUrl,
       userWorkspaceId: userWorkspace.id,
       colorScheme,
-      openRecordIn: openRecordIn as OpenRecordIn,
+      // Workspaces upgrade after the code rolls out, so the field is absent
+      // until the 2-27 workspace command reaches them.
+      openRecordIn: (openRecordIn as OpenRecordIn) ?? OpenRecordIn.SIDE_PANEL,
       dateFormat: dateFormat as WorkspaceMemberDateFormatEnum,
       locale,
       timeFormat: timeFormat as WorkspaceMemberTimeFormatEnum,