Deleting masking format
To delete an existing masking format:
- Open Application Data Protection. 
- In the left pane, click Masking Format. The list of masking formats is displayed. 
- Click the overflow icon (  ) corresponding to the masking format that you want to delete. ) corresponding to the masking format that you want to delete.- Note - The predefined masking formats can't be deleted. You can only view them. 
- Click Delete. A dialog box appears prompting to confirm the action. 
- Click Delete. A message, <Masking format-name> has been deleted appears on screen.