How To Fix SCME006 - Extension &1 is currently locked by &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: SCME - CME: Message class

• Message number: 006

• Message text: Extension &1 is currently locked by &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SCME006 - Extension &1 is currently locked by &2. ?

  The SAP error message SCME006 indicates that a specific extension (identified by &1) is currently locked by another user or process (identified by &2). This typically occurs in the context of SAP SCM (Supply Chain Management) or similar modules where multiple users may be trying to access or modify the same data simultaneously.
  Cause:
  
  Concurrent Access: Another user or process is currently using the extension, which prevents other users from making changes until the lock is released.
  Long-Running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Errors: Sometimes, locks may not be released properly due to system errors or crashes.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify the Locking User: Use transaction codes like SM12 (for lock entries) to identify the user or process that is holding the lock. You can check the details of the lock and see if it is safe to terminate it.
  Terminate the Lock: If you determine that the locking session is no longer active or can be safely terminated, you can delete the lock entry from SM12. However, this should be done with caution and ideally with the consent of the user holding the lock.
  Check for Long-Running Processes: Investigate if there are any long-running processes that may be causing the lock. You can use transaction SM66 to monitor active processes in the system.
  Consult with IT Support: If the issue persists or if you are unsure about terminating locks, consult your IT support team or SAP Basis team for assistance.
  
  Related Information:
  
  Lock Management: SAP uses a locking mechanism to prevent data inconsistencies when multiple users access the same data. Understanding how locks work in SAP can help in troubleshooting similar issues.
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM66: Monitor global work processes.
  SM21: Check system logs for any related errors or warnings.
  
  
  Documentation: Refer to SAP Help documentation for more details on lock management and troubleshooting.
  
  Always ensure that you have the necessary permissions and that you follow your organization's policies when dealing with locks and user sessions in SAP.