Hi Pankaj,
I believe you are talking about workflow tasks here correct? If so, I want to make sure I understand the use case here - so please let me know if this example is what you are looking for:
- User-A created a request which has an approval task X on it
- That approval task is assigned to User-B
- User-B sets User-A as a delegate for the approval task
So in this case, User-A can approve the task on their own request because User-B, who owns the task, has set User-A as a delegate on that task.
What you are looking to do is to prevent User-A from approving the task because they are also the "Affected End User" on the request - is this correct?
Let us know,
Jon I.