How To Fix MPE_EXEC_TRACK_TOOLS021 - Equipment &1 is locked by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_EXEC_TRACK_TOOLS -

• Message number: 021

• Message text: Equipment &1 is locked by &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_EXEC_TRACK_TOOLS021 - Equipment &1 is locked by &2 ?

  The SAP error message "MPE_EXEC_TRACK_TOOLS021 Equipment &1 is locked by &2" indicates that the equipment identified by &1 is currently locked by another user or process, identified by &2. This typically occurs in scenarios where multiple users or processes are trying to access or modify the same equipment data simultaneously.
  Cause:
  
  Concurrent Access: Another user or transaction is currently using the equipment, which prevents other users from making changes.
  System Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. When a user accesses a piece of equipment for editing, it gets locked until the user completes their transaction or the session is terminated.
  Long-running Transactions: If a transaction takes too long to complete, it may hold the lock longer than expected, causing other users to encounter this error.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user or process to complete their transaction and then try again.
  Identify the Lock: Use transaction code SM12 to check for locks in the system. You can search for the equipment number or the user ID to see who is holding the lock.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from SM12. However, this should be done with caution, as it may lead to data inconsistencies if the other user is still working on the equipment.
  Communicate with the User: If you identify the user holding the lock, you can communicate with them to understand if they can release the lock or if they are still actively working on the equipment.
  Check for Background Jobs: Sometimes, background jobs may also hold locks. Check transaction SM37 to see if any background jobs are running that might be causing the lock.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks can be exclusive (preventing all other access) or shared (allowing read access).
  Transaction Codes: Familiarize yourself with relevant transaction codes like SM12 (to view and manage locks), SM37 (to monitor background jobs), and SM21 (to check system logs for errors).
  User Training: Ensure that users are trained on how to properly release locks and manage their sessions to minimize the occurrence of such errors.
  
  If the issue persists or if you are unsure about releasing locks, it may be advisable to contact your SAP Basis team or system administrator for further assistance.