How To Fix RSENQ054 - Aggregate &1 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSENQ - Lock Manager

• Message number: 054

• Message text: Aggregate &1 is locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSENQ054 - Aggregate &1 is locked by user &2 ?

  The SAP error message RSENQ054 indicates that an aggregate (in this case, identified by &1) is locked by a specific user (identified by &2). This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when a user is trying to perform an operation on an aggregate that is currently locked for editing or processing by another user.
  Cause:
  
  Concurrent Access: Another user is currently working on the same aggregate, which prevents other users from making changes or performing certain operations.
  Long-Running Processes: A long-running process (like data loading or aggregation) may have locked the aggregate.
  System Errors: Sometimes, system errors or crashes can leave locks in place that need to be cleared.
  
  Solution:
  
  Wait and Retry: If the lock is due to another user, the simplest solution is to wait until that user has completed their work and released the lock.
  Identify the Locking User: You can use transaction codes like SM12 (to view and manage locks) to identify the user who is holding the lock. 
  Contact the User: If possible, contact the user who is holding the lock to understand their activity and when they expect to release the lock.
  Release the Lock: If the locking user is not available or if the lock is stale (e.g., due to a system error), an administrator can manually release the lock using transaction SM12. However, this should be done with caution to avoid data inconsistencies.
  Check for Long-Running Processes: Use transaction SM37 to check for any long-running jobs that might be holding the lock and consider terminating them if they are no longer needed.
  System Monitoring: Implement monitoring to track locks and long-running processes to prevent future occurrences.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM37: To monitor job statuses.
  ST22: To check for dumps that might indicate underlying issues.
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms in SAP BW/BI.
  Best Practices: Establish guidelines for users to avoid concurrent access to critical aggregates, especially during data loading or processing times.
  
  By following these steps, you should be able to resolve the RSENQ054 error and understand the context in which it occurs.