How To Fix /SCMTMS/WBN040 - Waybill number &1 in use by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/WBN -

• Message number: 040

• Message text: Waybill number &1 in use by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/WBN040 - Waybill number &1 in use by user &2 ?

  The SAP error message /SCMTMS/WBN040 Waybill number &1 in use by user &2 typically occurs in the context of SAP Transportation Management (TM) when a waybill number is being accessed or modified by another user. This is a concurrency control mechanism to prevent data inconsistencies and ensure that only one user can make changes to a specific waybill at a time.
  Cause:
  
  Concurrent Access: Another user is currently editing or processing the waybill number specified in the error message.
  Session Lock: The waybill may be locked due to an open session by another user, preventing others from making changes.
  System Configuration: There may be specific configurations or settings in the system that enforce strict locking mechanisms for waybill processing.
  
  Solution:
  
  Identify the User: Check who is currently using the waybill number. You can do this by using transaction codes like SM04 (to see active users) or AL08 (to see all users logged into the system).
  Wait for Release: If the other user is legitimately working on the waybill, you may need to wait until they finish their task and release the lock.
  Communicate: If you know the user who is using the waybill, you can communicate with them to understand their timeline for completing their work.
  Force Release (if necessary): If the user is inactive or has left the session open unintentionally, a system administrator may need to terminate their session to release the lock. This should be done with caution and proper authorization.
  Check for Background Jobs: Sometimes, background jobs may also hold locks on waybill numbers. Check if any background processes are running that might be using the waybill.
  Review System Settings: If this issue occurs frequently, it may be worth reviewing the system settings related to locking mechanisms and user access to see if adjustments can be made to improve concurrency handling.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs for any related issues).
  Documentation: Refer to SAP documentation or help resources for more details on handling locks and user sessions in SAP TM.
  Support: If the issue persists or if you need further assistance, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  By following these steps, you should be able to resolve the error and continue working with the waybill in question.