Delete permission in portal
To delete a permission:
- Click the Customer Portal option under the Users and Control section in the Settings page.

- Click the Permissions option in the Customer portal page.

- Hover the mouse over the required permission. Click the Delete icon that appears.

- In the pop-up that appears, choose the permission set to move the customers belonging to the deleted permission to. Then click Ok.

- The permission will be deleted and only the permissions which remain will be displayed.