How To Fix STC_TM034 - Task list &1 locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_TM - Task List Manager Messages

• Message number: 034

• Message text: Task list &1 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_TM034 - Task list &1 locked by user &2 ?

  The SAP error message STC_TM034 indicates that a task list is locked by a specific user, which prevents other users from executing or modifying that task list. This typically occurs in the context of background processing or task scheduling in SAP.
  Cause:
  
  User Lock: The task list is currently being processed or modified by another user, which locks it for other users.
  Long-Running Processes: If a task list is executing a long-running job, it may remain locked until the job completes.
  System Errors: Sometimes, system errors or crashes can leave a task list in a locked state.
  Manual Locking: A user may have manually locked the task list for maintenance or other reasons.
  
  Solution:
  
  Wait and Retry: If the task list is locked due to a long-running process, wait for the process to complete and then try again.
  Identify the Locking User: Use transaction code SM12 to check for locks in the system. You can filter by the user ID mentioned in the error message to see what locks they have.
  Release the Lock: If you determine that the lock is no longer needed (e.g., the user has logged off or the process has failed), you can manually release the lock using transaction SM12. Be cautious when doing this, as it may disrupt ongoing processes.
  Check for Background Jobs: Use transaction SM37 to check if there are any background jobs related to the task list that are still running. If a job is stuck, you may need to terminate it.
  Contact the User: If possible, contact the user who has locked the task list to understand why it is locked and if they can release it.
  System Restart: In rare cases, if the lock persists and cannot be resolved, a system restart may be necessary, but this should be done with caution and typically as a last resort.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks in the system.
  SM37: To monitor background jobs.
  ST22: To check for dumps that may have caused locks.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to task list locking.
  Documentation: Review SAP documentation for task scheduling and background processing for best practices and troubleshooting tips.
  
  Always ensure that you have the necessary authorizations to perform actions related to locks and background jobs in your SAP system.