IDocs are processed by a function module, which are mapped against in table EDIFCT. When you process an IDoc with BD87 you can have a breakpoint in the function and it will stop. For outbound processing it depends on which program is sending the IDoc. For transactional data like purchase orders, the IDoc is created via RSNAST00 which in turn calls a function module assigned to the processing code (BD41).
Dig Deeper on SAP ABAP
Related Q&A from Axel Angeli
An SAP user wants to know how to upload data into SAP R/3 when SAP Scripting is not enabled. Continue Reading
An SAP user is receiving an error message while integrating SAP iDoc PORDCR1 for a purchase order. Continue Reading
An SAP user is having difficulty with PERNR iDoc while transporting data from SAP to an external system. Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.