Hi,
Please refer to the docu below :
PERFORM form IN PROGRAM prog.
Extras:
1. ... TABLES itab1 itab2 ...
2. ... USING u1 u2 u3 ...
3. ... CHANGING c1 c2 c3 ...
4. ... IF FOUND
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas.See Passing SY-REPID not allowed and Receiving SY-SUBRC not allowed.
Effect
External PERFORM. Calls a subroutine form of another ABAP program prog. You can transfer both the subroutine name and the program name dynamically (at runtime); in this case you must enclose form or prog in brackets. The names transferred with form or prog must be in upper case, otherwise a runtime error will occur. If there are no subsequent addtional specifications (for example USING), you do not need to specify the program name after IN PROGRAM; in this case the system searches for the routine in the current program.
Note
If you call a routine of a program prog, the system loads this program prog into the PXA buffer (if it is not already there). For storage space reasons, you should not call too many subroutines belonging to different programs.
Thanks,
Sriram Ponna.
Bluesky
