Delete a ghost user if they are no longer used in the project. When you delete a ghost user, they are also removed from all currently assigned tasks.
1. In the Planning view, click More, choose Ghost users, and then choose Manage ghost users.
The Manage ghost users dialog box opens.
2. Select the user to delete and click Delete.
You are prompted to confirm the deletion.
3. Click Yes.
The user is deleted and removed from all currently assigned tasks.
4. When you finish, click Close to close the Manage ghost users dialog box.