How To Fix M2331 - With data collection via user-exit no change in source data is possible

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 331

• Message text: With data collection via user-exit no change in source data is possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M2331 - With data collection via user-exit no change in source data is possible ?

  The SAP error message M2331, which states "With data collection via user-exit no change in source data is possible," typically occurs in the context of inventory management or material movements when using user-exits for data collection. This error indicates that the system is trying to process data that cannot be modified due to the way the user-exit is configured.
  Cause:
  
  User-Exit Configuration: The user-exit that is being used for data collection may be set up in a way that prevents changes to the source data. This is often the case when the user-exit is designed to read data but not to modify it.
  Data Locking: The source data might be locked by another process or transaction, preventing any changes from being made.
  Incorrect Implementation: If the user-exit is incorrectly implemented or if there are logical errors in the code, it may lead to this error message.
  
  Solution:
  
  Review User-Exit Implementation: Check the implementation of the user-exit to ensure that it is correctly set up to allow changes to the source data if that is the intended functionality. You may need to modify the code to allow for data changes.
  Check for Data Locks: Investigate if the source data is locked by another transaction. You can use transaction codes like SM12 to check for locks and SM21 for system logs to identify any issues.
  Debugging: If you have access to the development environment, you can debug the user-exit to see where the error is being triggered. This can help identify if there are any logical errors in the code.
  Consult Documentation: Review SAP documentation related to the specific user-exit you are using. There may be specific guidelines or limitations regarding data changes.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide guidance on user-exit configurations.
  
  Related Information:
  
  User-Exits: User-exits are predefined points in the SAP code where custom code can be added. They are often used to enhance standard functionality without modifying the original code.
  Transaction Codes: Familiarize yourself with transaction codes like SE80 (Object Navigator) to view and edit user-exit implementations, and SE37 (Function Module) to check related function modules.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to involve your SAP Basis or ABAP team for further investigation.