How To Fix TH042 - Interface of exit module &1 is not consistent.

TH042 - Overview

• Message type: E = Error

• Message class: TH - Messages for Upgrade Repository Switch

• Message number: 042

• Message text: Interface of exit module &1 is not consistent.

What causes this issue?

Function module &V1& is to be called as an exit module. However, the
function module was not executed since its interface was not consistent
with the transferred parameters of the function module caller.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Create a customer message and assign it to component BC-UPG-ADDON.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

TH042 - Details

• The SAP error message TH042, which states "Interface of exit module &1 is not consistent," typically occurs when there is a mismatch or inconsistency in the interface of a user exit or enhancement implementation. This can happen for several reasons, including changes in the underlying SAP standard code, incorrect parameter definitions, or issues with the implementation of the exit itself.
  Causes:
  
  Parameter Mismatch: The parameters defined in the user exit do not match the expected parameters in the SAP standard interface.
  Changes in SAP Standard: If SAP has updated the standard code and the user exit has not been updated accordingly, it can lead to inconsistencies.
  Incorrect Implementation: The user exit may have been implemented incorrectly, with missing or extra parameters.
  Transport Issues: If the user exit was transported from one system to another (e.g., from development to production) without proper adjustments, it may lead to inconsistencies.
  
  Solutions:
  
  Check the Interface: Review the interface of the user