How To Fix STC_TM023 - Task list run &1 is currently locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_TM - Task List Manager Messages

• Message number: 023

• Message text: Task list run &1 is currently locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message STC_TM023 - Task list run &1 is currently locked by user &2 ?

  The SAP error message STC_TM023 indicates that a task list run is currently locked by another user. This typically occurs when a task list is being executed or modified by one user, preventing other users from accessing or executing the same task list simultaneously.
  Cause:
  
  Concurrent Execution: Another user is currently executing the same task list.
  Incomplete Execution: A previous execution of the task list did not complete properly, leaving it in a locked state.
  User Lock: The task list may be locked due to a user session that has not been properly terminated.
  
  Solution:
  
  Wait and Retry: If the task list is being executed by another user, you may need to wait until that user completes their task and releases the lock.
  Check Lock Status: Use transaction code SM12 to check for locks on the task list. You can look for entries related to the task list and the user who is locking it.
  Release Lock: If you find that the task list is locked due to an incomplete execution or a user session that is no longer active, you can manually delete the lock entry in SM12. However, be cautious with this approach, as it may lead to data inconsistency if the task list is still being processed.
  Contact the User: If you identify the user who is locking the task list, you can contact them to determine if they can release the lock or if they are still actively working on it.
  System Administrator: If you are unable to resolve the issue, it may be necessary to involve a system administrator who can investigate further and take appropriate actions.
  
  Related Information:
  
  Transaction Codes:
  
  ST22: For checking dumps that may have occurred during task execution.
  SM21: For reviewing system logs that might provide insights into the issue.
  SM37: To check the status of background jobs related to the task list.
  
  
  Documentation: Refer to SAP Help documentation for more details on task lists and their management.
  Best Practices: Implement proper task list management practices to avoid concurrent execution issues, such as scheduling tasks during off-peak hours or using unique identifiers for different runs.
  
  By following these steps, you should be able to resolve the STC_TM023 error and successfully execute the task list.