How to escape message no changes to save in Oracle Forms;

There are various ways to solve this issue:-

KEY-COMMIT  trigger :-

BEGIN
  :System.Message_Level := 25;
  COMMIT;
  :System.Message_Level := 0;
END;
and second is at on-error trigger:-
DECLARE
  V_Error_Code       NUMBER;
  V_Error_Text       VARCHAR2 (2000);
 
BEGIN
  V_Error_Code      := Error_Code;
  V_Error_Text      := Error_Text;


  IF V_Error_Code IN (40401, 40405) THEN
   
    NULL;
 
  ELSE
 
    Show_Error (V_Error_Code);
  END IF;
END;