How To Fix RSO304 - Object '&1' (type '&2') locked by request &3

SAP Error Message - Details

• Message type: E = Error

• Message class: RSO - BW Repository

• Message number: 304

• Message text: Object '&1' (type '&2') locked by request &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO304 - Object '&1' (type '&2') locked by request &3 ?

  The SAP error message RSO304 indicates that a specific object (like a query, InfoProvider, or other BI-related object) is locked by a request. This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when an object is being modified or accessed by another user or process, preventing your current operation from proceeding.
  Cause:
  
  Concurrent Access: Another user or process is currently using or modifying the object.
  Long-Running Processes: A long-running job or process is holding a lock on the object.
  System Errors: Sometimes, system errors or crashes can leave objects in a locked state.
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to check for locks on the object. You can filter by the object name or user.
  Look for the request number mentioned in the error message.
  
  
  
  Release the Lock:
  
  If you identify the lock and it is safe to do so, you can manually delete the lock entry in SM12. Be cautious with this step, as it may disrupt the work of other users.
  If the lock is held by a long-running process, you may need to wait for it to complete.
  
  
  
  Check for Background Jobs:
  
  Use transaction code SM37 to check for any background jobs that might be running and holding the lock. If necessary, you can cancel the job if it is not critical.
  
  
  
  Contact the User:
  
  If another user is holding the lock, you may want to communicate with them to understand if they can release the object.
  
  
  
  System Restart:
  
  In some 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:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks are used to ensure data integrity and prevent conflicts during concurrent access.
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SE11: To check the structure of the object if needed.
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms and best practices for managing locks in SAP BW/BI environments.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.