I am facing a problem in IDOCS. I am sending billing document to external vendor using outbound IDOCs.But customer is asking to for the change of data in one of the segment.that is the data in the segment E1EDK02_002 should be replaced with E1EDP02_002. Where can I change this. I tried to finding the user exit for this by debugging the IDOC but it is not going into the userexits. Please anyone help me out in solvng this?