Same inbound type idoc to different FM

Question

Hi everybody.
I have the same idoc type that is received from two different logical systems. I want to customize two FM to process these idocs.
In transacion we57 there are two entries to associate the same idoc type to two different function modules.
The problem is that when I go to transaction we42 to create a process code only one of the functions created in transaction we57 is shown and it´s impossible to create two differents process operation associated each of them to the two different FM.
How could I create 2 process code for the 2 FM for the same idoc types???
Thanks

Answer 1

Hi,
I'm guessing these are customer functions.
Ideally, the processing should be done in the same function module, you can always switch to different logic within the function module ( wrapper function ) and call different function modules based on the sender to process the data.
Something like this:
function idoc_input_mestyp  " This is the wrapper function which will process the Idoc
if sender = 'X'.
  "Process for sender X
  call function 'X'.
elseif sender = 'Y'.
  "Process for sender Y
  call function 'Y'.
endif.
endfunction.
You can create a Z table where you can store the sender and function module, this way you can dynamically call the functions.
Hope this helps.
Br,
Advait