SAP OO OBS ON CHANGE 1 documentation, setup help and example usage

INCLUDE
ARTICLE

ON CHANGE OF - ENDON not Permitted

The pseudo control structure ON CHANGE OF - ENDON is not permitted in ABAP Objects.

ABAP Objects error message at:

ON CHANGE OF f.
...
ENDON.

Correct syntax:

DATA g LIKE f.

IF f g.
...
g = f.
ENDIF.

Reason:

The system internally creates a global invisible auxiliary field which cannot be controlled by the program. You are recommended to declare your own auxiliary field and process it with the IF control structure.