To reject a request that is assigned to you:
Log in to Identity Self Service.
Click Self Service. Self service Home page is displayed.
Click Pending Approvals box. The Pending Approvals page is displayed.
Select the task that you want to reject.
Click the task to view its details in a new tab and provide any comments. Then, click Reject. The task is rejected and is no longer displayed in the tasks table of the Approval Details page.