How To Fix KK240 - Lock error occurred for worklist &1 - saving not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: KK -

• Message number: 240

• Message text: Lock error occurred for worklist &1 - saving not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KK240 - Lock error occurred for worklist &1 - saving not possible ?

  The SAP error message KK240, which states "Lock error occurred for worklist &1 - saving not possible," typically occurs in the context of the Controlling (CO) module, particularly when dealing with internal orders, cost centers, or worklists. This error indicates that there is a lock on the worklist that prevents the system from saving changes.
  Causes:
  
  Concurrent Access: The most common cause of this error is that another user or process is currently accessing the same worklist, leading to a lock situation.
  Long-running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, causing other users to encounter this error.
  System Configuration: There may be specific configurations or settings in the SAP system that lead to locking issues.
  Database Locks: Sometimes, database-level locks can cause this issue, especially if there are issues with the database or if it is under heavy load.
  
  Solutions:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Check for Active Sessions: Use transaction codes like SM12 (to check for locks) to see if there are any active sessions holding locks on the worklist. If you find any, you may need to contact the user or administrator to resolve the lock.
  Transaction Monitoring: Use transaction codes like SM21 (system log) or ST22 (dump analysis) to check for any system issues or dumps that might be related to the error.
  Database Administration: If the issue persists, it may be necessary to involve your database administrator to check for any underlying database issues that could be causing locks.
  System Configuration Review: Review the system configuration and settings related to locking mechanisms to ensure they are set up correctly.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and delete locks), SM21 (system log), and ST22 (dump analysis) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Training: Ensure that users are trained on how to properly manage their sessions and avoid long-running transactions that could lead to locking issues.
  
  If the problem persists after trying the above solutions, it may be necessary to escalate the issue to your SAP Basis team or SAP support for further investigation.