How To Fix 1R490 - Object ID &1 locked by pre-Lock method

SAP Error Message - Details

• Message type: E = Error

• Message class: 1R - SAP Knowledge Provider

• Message number: 490

• Message text: Object ID &1 locked by pre-Lock method

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1R490 - Object ID &1 locked by pre-Lock method ?

  The SAP error message 1R490 indicates that an object (identified by the Object ID &1) is locked due to a pre-lock method. This typically occurs in scenarios where a transaction or process is trying to access an object that is currently locked by another process or user.
  Cause:
  
  Concurrent Access: The object is being accessed by another user or process, which has placed a lock on it.
  Long-running Transactions: A transaction that takes a long time to complete may hold a lock on the object longer than expected.
  Deadlocks: In some cases, deadlocks can occur where two or more processes are waiting for each other to release locks.
  System Configuration: Certain configurations or custom developments may lead to unexpected locking behavior.
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction SM12 to check for existing locks on the object. You can filter by the Object ID to find the specific lock.
  Identify the user or process that is holding the lock.
  
  
  
  Release the Lock:
  
  If the lock is held by a user who is no longer active, you may need to manually delete the lock entry in SM12. Be cautious with this step, as it may lead to data inconsistency if the user is still performing operations.
  
  
  
  Wait for the Lock to Release:
  
  If the lock is held by a legitimate process, you may need to wait for that process to complete. Monitor the transaction to see when it finishes.
  
  
  
  Review Transaction Logic:
  
  If this error occurs frequently, review the logic of the transactions that are causing the locks. Optimize the processes to minimize lock duration.
  
  
  
  Check for Deadlocks:
  
  If you suspect deadlocks, analyze the system logs or use transaction SM21 to check for deadlock situations and resolve them.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address locking issues related to your specific version of SAP.
  
  
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks is crucial. SAP uses various lock modes (e.g., exclusive, shared) to manage concurrent access to objects.
  Performance Tuning: Regularly monitor and tune your SAP system to ensure that long-running transactions are optimized and do not hold locks longer than necessary.
  User Training: Ensure that users are trained on how to properly complete transactions to avoid leaving locks in the system.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.