How To Fix KG390 - Nonallowed action in user exit

KG390 - Overview

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 390

• Message text: Nonallowed action in user exit

What causes this issue?

In a user exit (enhancement COPA000), you have changed characteristics
or rearranged data in a manner that is not allowed in CO-PA planning.

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?

Use the user exit only to change value fields. Do not sort table
XTH_CE0.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KG390 - Nonallowed action in user exit ?

  The SAP error message KG390 ("Nonallowed action in user exit") typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with user exits or enhancements that are not permitted in certain scenarios. This error can arise during various processes, such as when trying to post or process transactions that involve user exits.
  
  Cause:
  The error is generally caused by one of the following reasons:
  
  User Exit Restrictions: The user exit being called is not allowed to perform the action you are trying to execute. This could be due to the logic defined in the user exit or the specific conditions under which it is invoked.
  Incorrect Implementation: The user exit may not be implemented correctly, leading to unexpected behavior or restrictions being triggered.
  
  Configuration Issues: There may be configuration settings in the system that restrict certain actions within the user exit.
  
  
  Solution:
  To resolve the KG390 error, you can take the following steps:
  
  
  Review