How To Fix KG391 - Exit number &1 does not exist -> check your entry

SAP Error Message - Details

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 391

• Message text: Exit number &1 does not exist -> check your entry

What causes this issue?

The exit number &V1& has not yet been defined.

System Response

The exit number is needed in customer enhancement COPA0006, which can
be used to define company-specific planning functions.

How to fix this error?

Press F4 to display a list of possible entries, or see the
documentation on customer enhancement COPA0006 to create your own
planning function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KG391 - Exit number &1 does not exist -> check your entry ?

  The SAP error message KG391, which states "Exit number &1 does not exist -> check your entry," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with user exits or enhancements in the system. This error indicates that the system is trying to call a user exit that has not been defined or does not exist in the system.
  Cause:
  
  Non-existent User Exit: The exit number specified in the error message does not correspond to any user exit defined in the system.
  Incorrect Configuration: The configuration settings may be pointing to an incorrect exit number.
  Transport Issues: If the user exit was recently transported from another system, it may not have been properly imported or activated.
  Custom Development: If there is custom code that references a user exit, it may be incorrectly coded or the exit may not have been implemented.
  
  Solution:
  
  Check Exit Number: Verify the exit number mentioned in the error message. Ensure that it is correctly entered and corresponds to a valid user exit.
  Review Configuration: Go to the configuration settings in the SAP system where the exit is being called and check if the exit number is correctly configured.
  Transaction Codes: Use transaction codes like SMOD (for enhancements) and CMOD (for projects) to check if the exit exists and is active.
  Check for Transport Issues: If the exit was recently transported, check the transport logs to ensure it was successfully imported and activated.
  Consult Documentation: Refer to SAP documentation or notes related to the specific user exit to ensure it is implemented correctly.
  Debugging: If you have access to debugging tools, you can set breakpoints to see where the error is being triggered and gather more context about the issue.
  
  Related Information:
  
  User Exits: User exits are predefined points in the SAP standard code where you can add custom code without modifying the original code. They are often used to enhance functionality.
  Enhancement Framework: SAP provides an enhancement framework that allows developers to add custom logic to standard SAP applications.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific user exit or the error message.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP technical consultant or developer who can provide deeper insights into the specific configuration and coding aspects of your SAP environment.