Error message from HRPTIM03 and return to PT60 initial screen.

Hi Experts,

I have to show an error message during execution of PT60 (time evaluation) from the user exit HRPTIM03.

Now when ever the error message come the program exiting but i want to come to the PT60 initial screeen.

Even i tried with message type 'W' but its not working.

Plz suggest.