How To Fix RSENQ223 - Lock already set by another application. Action canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: RSENQ - Lock Manager

• Message number: 223

• Message text: Lock already set by another application. Action canceled

What causes this issue?

Lock already set by a different application. Operation canceled.

System Response

Another application (&v1&) is already holding the object lock.

How to fix this error?

Exit the application associated with &v1& and restart the process.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSENQ223 - Lock already set by another application. Action canceled ?

  The SAP error message RSENQ223: Lock already set by another application. Action canceled typically occurs when a transaction or process tries to acquire a lock on a resource that is already locked by another process. This is common in environments where multiple users or processes are trying to access the same data simultaneously.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access the same data or resource at the same time.
  Long-Running Transactions: A transaction that takes a long time to complete may hold a lock longer than expected, preventing other transactions from acquiring the lock.
  Deadlocks: Situations where two or more processes are waiting for each other to release locks, causing a standstill.
  Improper Lock Management: Applications or custom code that do not release locks properly after their operations are completed.
  
  Solutions:
  
  
  Identify the Lock Holder:
  
  Use transaction SM12 to view and analyze the locks currently held in the system. You can identify which user or process is holding the lock.
  If necessary, you can delete the lock entry if it is safe to do so (ensure that the process holding the lock is not critical).
  
  
  
  Wait and Retry:
  
  If the lock is held by a legitimate process, you may need to wait for that process to complete before retrying your action.
  
  
  
  Optimize Transactions:
  
  Review and optimize the code or processes that are acquiring locks to ensure they are held for the shortest time possible.
  Avoid long-running transactions that can lead to locks being held for extended periods.
  
  
  
  Implement Lock Management:
  
  If you are developing custom applications, ensure that locks are released properly after their use.
  Consider implementing retry logic in your application to handle temporary lock situations gracefully.
  
  
  
  Check for Deadlocks:
  
  Monitor for deadlocks and analyze the processes involved. You may need to redesign the logic to avoid situations where deadlocks can occur.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address specific issues related to locking mechanisms in your version of SAP.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or warnings.
  ST22: To analyze dumps that may provide insights into the issue.
  
  
  
  SAP Documentation: Review SAP documentation related to lock management and concurrency control for best practices.
  
  
  Performance Monitoring: Use tools like ST03N to monitor performance and identify long-running transactions that may be causing locks.
  
  
  By following these steps, you should be able to diagnose and resolve the RSENQ223 error effectively.