How To Fix WTADDI_IDOC020 - User exit & is to be called

WTADDI_IDOC020 - Overview

• Message type: E = Error

• Message class: WTADDI_IDOC - Messages for Application Log LO-ADM/IDOC

• Message number: 020

• Message text: User exit & is to be called

What causes this issue?

You can change or enhance the additionals IDoc data using user exit
&V1&. The current <DS:NA.WTADDI_IDOC005>key</> and segment and
application data are transferred to the user exit.
&hints&
Information for chaging the additionals IDocs are to found in the
documentation for the relevant <DS:MO.EXIT_SAPLWTIP_001> user exit</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WTADDI_IDOC020 - User exit & is to be called ?

  The SAP error message:
  WTADDI_IDOC020 User exit & is to be called
  typically occurs in the context of IDoc processing, specifically when dealing with the Warehouse Management (WM) or Extended Warehouse Management (EWM) interfaces that use IDocs for data exchange.
  
  Cause
  
  
  The message indicates that a user exit (a custom enhancement point in SAP) is expected to be called during the IDoc processing, but either:
  
  The user exit is not implemented or activated.
  The system expects the user exit to perform some processing but it is missing or incomplete.
  The user exit is called but does not handle the required logic, causing the process to stop or raise this message.
  
  
  
  In other words, the standard SAP process expects a custom enhancement (user exit) to be executed at this point, but it is either not found or not properly implemented.
  
  
  
  Where does this happen?
  
  This message is common in scenarios where IDocs are used to transfer warehouse tasks or delivery data,