How To Fix EJ000 - Function module can only process one IDoc

EJ000 - Overview

• Message type: E = Error

• Message class: EJ - Formal error for ISU-IDocs

• Message number: 000

• Message text: Function module can only process one IDoc

What causes this issue?

Several IDocs were transferred to the current function module at the
same time for processing. However, multiple processing is not planned.

System Response

The system cannot process your request.

How to fix this error?

Call up the function module with one IDoc at a time.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EJ000 - Function module can only process one IDoc ?

  The SAP error message EJ000 indicates that a function module is attempting to process more than one IDoc (Intermediate Document) at a time, but it is designed to handle only a single IDoc. This error typically arises in scenarios where IDocs are being processed in batch mode or when a function module is called in a loop that processes multiple IDocs simultaneously.
  
  Cause:
  
  Batch Processing: The function module is being called in a context where multiple IDocs are being passed to it, such as in a loop or batch processing scenario.
  Incorrect Function Module Usage: The function module being used is not designed to handle multiple IDocs, and the calling program is not respecting this limitation.
  
  Configuration Issues: There may be configuration settings in the IDoc processing that are not aligned with the expected input for the function module.
  
  
  Solution:
  
  Single IDoc Processing: Ensure that the function module is called with only one IDoc at a