ERPClimb logoERPClimb
Login

IDoc inbound function module

Inbound IDoc function module cannot be determined

Inbound processing stops because SAP cannot determine or call the function module/application handler for the IDoc.

Quick answer

Most likely cause
Process code points to an invalid or missing function module.
Check first
WE42 process code and linked processing function.
First resolution step
Restore the correct standard/custom processing assignment.

Likely root causes

  1. Process code points to an invalid or missing function module.
  2. Message/basic type assignment to inbound processing logic is incomplete.
  3. Custom inbound function module was not transported or is inactive.

What to inspect

  1. WE42 process code and linked processing function.
  2. WE57/message-type to function-module assignment where applicable.
  3. SE37 activation/existence of custom inbound function module.
  4. IDoc basic type/message type in the control record.

Resolution path

  1. Restore the correct standard/custom processing assignment.
  2. Activate/transport custom code through normal change control.
  3. Do not bind a random function module to the process code.
  4. Retest with an IDoc that represents the real payload structure.

Share this diagnosis

Paste a credited summary into a ticket, chat or forum reply. Your pasted input is never included.

ERPClimb is an independent platform and is not affiliated with SAP SE.