How To Fix CM_EAM_TL_API164 - Equipment task list &1 is being used by another user or application

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EAM_TL_API - Message class for eam task list API

• Message number: 164

• Message text: Equipment task list &1 is being used by another user or application

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EAM_TL_API164 - Equipment task list &1 is being used by another user or application ?

  The SAP error message CM_EAM_TL_API164 indicates that an equipment task list (or maintenance task list) is currently being accessed or modified by another user or application. This is a common issue in multi-user environments where concurrent access to the same data can lead to conflicts.
  Cause:
  
  Concurrent Access: Another user or session is currently editing or viewing the same equipment task list.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When one user accesses a task list, it is locked for editing by others.
  Background Jobs: A background job or another application might be using the task list, causing it to be locked.
  Session Issues: Sometimes, a previous session may not have released the lock properly due to an error or abrupt termination.
  
  Solution:
  
  Wait and Retry: If the task list is being used by another user, the simplest solution is to wait for them to finish and then try again.
  Identify the Lock: Use transaction code SM12 to check for locks on the task list. You can see which user or session is holding the lock.
  
  If you have the necessary authorizations, you can delete the lock entry, but this should be done with caution as it may lead to data inconsistencies.
  
  
  Check Background Jobs: Use transaction code SM37 to check if any background jobs are running that might be using the task list.
  Communicate with Users: If you identify another user holding the lock, communicate with them to understand their needs and coordinate access.
  Session Management: Ensure that all sessions are properly closed. If a session is stuck, you may need to log off and log back in to clear any lingering locks.
  SAP Notes: Check for any relevant SAP Notes that might address this issue or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SE11: To check the database table structure if needed.
  
  
  Documentation: Refer to SAP Help documentation for more details on task lists and locking mechanisms.
  User Training: Ensure that users are trained on how to properly access and release locks on task lists to minimize conflicts.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.