Custome BAPI - declare ITAB and define the Function Module and Subroutine

Question

Hello Experts
I want to create a Custom BAPI and it has the following scenario:
1) a Function Module which collects some records into it internal table, say ITAB
2) a Subroutine which moved the records from ITAB to BAPI table
Now, I want to declare ITAB and define the Function Module and Subroutine.
Where and How can I do this?
Plz suggest.
Regards
BD

Answer 1

Hi,
  1) Got to SE37 and create an RFC .
  2) Declare the ITAB directly in the TABLES tab of the FM.
  3) Inside the FM source Code tab, collect all the data using SELECT query and directly or by using logic, put the data into the
      ITAB.
  4) Since the data collected is directly put into the itab you dont need a subroutine to be written.
  5) If subroutine is a necessity, then just write PERFORM SUB ROUTINE NAME.
       AND DEFINE THE FORM ENDFORM OF THE SUBROUTINE AFTER THE ENDFUNCTION OF THE FM
   Let me know if any issues....
Regards,
Vimal.