How To Fix FK045 - Transaction is currently locked by another user

SAP Error Message - Details

• Message type: E = Error

• Message class: FK - Factory calendar

• Message number: 045

• Message text: Transaction is currently locked by another user

What causes this issue?

Another user is currently using the calendar maintenance functions.

System Response

You can only work in display mode.

How to fix this error?

When the other user has left calendar maintenance, call the transaction
again.

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 FK045 - Transaction is currently locked by another user ?

  The SAP error message FK045, which states "Transaction is currently locked by another user," typically occurs when a user attempts to access a transaction or data that is currently being processed or edited by another user. This locking mechanism is a part of SAP's concurrency control to ensure data integrity and prevent conflicts.
  Causes:
  
  Concurrent Access: Another user is currently processing the same transaction or data.
  Session Timeout: A previous session may not have been properly closed, leaving a lock on the transaction.
  Long-running Transactions: A transaction that takes a long time to complete can hold locks for an extended period.
  System Errors: Occasionally, system errors or crashes can leave locks in place.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for the other user to complete their transaction may resolve the issue.
  Identify the Lock: Use transaction codes like SM12 (Display and Delete Locks) to identify which user or session is holding the lock. You can check the lock entries and see if you can contact the user to release the lock.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. Be cautious with this approach, as it may lead to data inconsistencies if the other user is still working on the transaction.
  Check for Long-running Processes: If a transaction is taking too long, investigate the process to see if it can be optimized or if it needs to be terminated.
  System Administration: If the issue persists, it may require intervention from your SAP Basis team to check for any underlying system issues or to clear stale locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors.
  ST22: To analyze dumps that may indicate underlying issues.
  
  
  User Communication: If you identify the user holding the lock, communicate with them to understand if they can release the lock or if they are facing issues.
  Documentation: Refer to SAP Notes and documentation for specific guidance related to your version of SAP, as there may be version-specific considerations.
  
  Best Practices:
  
  Encourage users to log off properly after completing their transactions to avoid leaving locks.
  Monitor long-running transactions and optimize them to reduce the likelihood of locking issues.
  Regularly review and clean up lock entries in the system to maintain performance and reduce conflicts.
  
  By following these steps, you should be able to address the FK045 error effectively.