SAP Message 5A713 - 6000 is set as the screen number.

Diagnosis
You have entered a PBO or PAI function, however, the customerenhancement is not to be executed as you have selected screen number6000. The enhancement will remain inactive.

System Response
6000 is automatically assigned as the screen number.

Procedure
If you want to display another screen, delete the entries for the PBOand PAI entries. Once you have done this, select the correct screennumber.