Debugging ECC FM called via RFC

Question

Hello experts,
From a CRM Function Module, we are trying to invoke a custom ECC FM. On debugging, the flow does not go to the ECC module for debugging (although it returns the values). We tried several options like adding RFC param in su01, Activate Remote Debugging in ECC, sm51, sm50 etc. But none of this helps.
Any suggestions on debugging would be most welcome.
Regards,
Nisha

Answer 1

You can follow these steps to indirectly debug your ECC FM.
1) Put an infinite loop in your ECC FM, say
     DATA TEMP.
     DO.
      IF TEMP = 'X'.
        EXIT.
      ENDIF.
     ENDDO.
  2) Execute your CRM FM in which your ECC FM is being called.
  3) Go to ECC, Transaction SM50 (Process Overview). You will see your FM's entry. Select your FM's entry then from the  menu select Program/Session>Program>Debugging. This will open your ECC FM in debug mode. Put value of TEMP as 'X' and continue debugging.