How To Fix TA390 - At least 2 exits are trying to change table &1; action terminated

SAP Error Message - Details

• Message type: E = Error

• Message class: TA - Extended table maintenance (eval., Customizing, client copy)

• Message number: 390

• Message text: At least 2 exits are trying to change table &1; action terminated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TA390 - At least 2 exits are trying to change table &1; action terminated ?

  The SAP error message TA390 indicates that there is a conflict where at least two user exits are attempting to modify the same database table simultaneously. This situation can lead to inconsistencies and is therefore not allowed by the SAP system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Multiple User Exits: The error typically arises when multiple user exits (or enhancements) are trying to modify the same table during the same transaction. This can happen if:
  
  Custom code in different user exits is trying to update the same fields of a table.
  There are conflicting logic or conditions in the user exits that lead to simultaneous attempts to change the same data.
  
  
  
  Incorrect Configuration: Sometimes, the configuration of the user exits or enhancements may not be set up correctly, leading to conflicts.
  
  
  Solution:
  
  
  Review User Exits: 
  
  Identify the user exits that are being triggered during the transaction that leads to the error. You can do this by checking the transaction logs or debugging the process.
  Analyze the code in each user exit to see what changes are being made to the table in question.
  
  
  
  Modify Logic: 
  
  If possible, consolidate the logic of the user exits so that they do not conflict. This may involve combining the functionality of the exits or ensuring that they do not attempt to modify the same fields at the same time.
  Implement checks to ensure that only one exit modifies the table at a time, or use flags to control the flow of execution.
  
  
  
  Use Function Modules: 
  
  If the logic can be encapsulated in a function module, consider creating a function module that handles the updates to the table. This can help centralize the logic and avoid conflicts.
  
  
  
  Testing: 
  
  After making changes, thoroughly test the transaction to ensure that the error no longer occurs and that the desired functionality is preserved.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to the specific user exits you are using. There may be known issues or recommendations for handling such conflicts.
  
  
  
  Related Information:
  
  Debugging: Use the SAP debugger to step through the code and identify where the conflict occurs. This can provide insights into which user exits are involved.
  SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this issue.
  Performance Considerations: Be mindful of performance implications when modifying user exits, as changes can affect the overall system performance.
  
  By following these steps, you should be able to resolve the TA390 error and ensure that your SAP system operates smoothly without conflicts in user exits.