How To Fix KG390 - Nonallowed action in user exit

SAP Error Message - Details

• 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 User Exit Logic: Check the code in the user exit that is causing the error. Ensure that the logic is correctly implemented and that it allows the actions you are trying to perform.
  
  
  Debugging: Use the SAP debugger to trace the execution of the user exit. This can help identify the exact point where the error occurs and why the action is deemed non-allowed.
  
  
  Check Configuration: Review the configuration settings related to the user exit and the processes you are working with. Ensure that there are no restrictions that would prevent the action from being executed.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific user exit you are using. There may be known issues or additional requirements that need to be met.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on how to handle it.
  
  
  Testing: After making changes, thoroughly test the functionality to ensure that the error is resolved and that the user exit behaves as expected.
  
  
  Related Information:
  
  User Exits: User exits are predefined points in the SAP standard code where you can add your own custom code. They are often used to enhance standard functionality without modifying the original code.
  Enhancement Framework: In addition to user exits, SAP provides other enhancement options such as BAdIs (Business Add-Ins) and enhancement spots, which may offer more flexibility and better practices for extending functionality.
  Transaction Codes: Familiarize yourself with transaction codes related to user exits and enhancements, such as SE80 (Object Navigator) and SE37 (Function Module).
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific implementation and requirements.