If you have stale, orphan or other classifications of user accounts that need to be deleted and you do not have a policy in place to delete those accounts dynamically, you can do so manually.
Manually Delete User Accounts
On the navbar, expand Identity Administration and select User Accounts.
Select the Delete Account action.
Search for the user account you want to delete and then check the box beside the record returned for the account.
Repeat step 3 for any other user accounts you need to delete.
When ready to commit your changes, click Submit.
Click YES to confirm you want to delete the account(s); otherwise, click NO.
Click OK to close the Operation Execution Summary.
Before submitting your changes, you can remove one or more user accounts from the cart by clicking the Selected icon and then clicking the Remove button beside the accounts you want to remove, as shown in the below image.
Deleting a potential delete user account operation before submitting the workflow