How To Fix CPWB802 - Unlock not possible (lock management error)

SAP Error Message - Details

• Message type: E = Error

• Message class: CPWB - General Workbench Messages

• Message number: 802

• Message text: Unlock not possible (lock management error)

What causes this issue?

INCLUDE EWB_TXT_INTERNAL_ERROR1 OBJECT DOKU ID TX
Error in lock management.
INCLUDE EWB_TXT_INTERNAL_ERROR2 OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CPWB802 - Unlock not possible (lock management error) ?

  The SAP error message CPWB802 "Unlock not possible (lock management error)" typically occurs in the context of SAP's lock management system, which is used to prevent concurrent access to data that could lead to inconsistencies. This error indicates that there is an issue with unlocking a resource that is currently locked, often due to a lock conflict or a problem with the lock management system itself.
  Causes:
  
  Lock Conflicts: Another user or process may be holding a lock on the same object, preventing the unlock operation.
  Session Issues: The session that holds the lock may have terminated unexpectedly, leading to inconsistencies in the lock management.
  Database Issues: Problems with the underlying database or its connection can also lead to lock management errors.
  Transport Issues: If the error occurs during a transport operation, it may be due to locks not being released properly after a transport is completed.
  System Performance: High system load or performance issues can lead to delays in lock management operations.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. You can identify the user or process holding the lock and take appropriate action.
  Release Locks: If you find unnecessary locks, you can manually delete them from the SM12 transaction, but be cautious as this can lead to data inconsistencies if done improperly.
  Restart the Session: If the session that holds the lock is no longer active, restarting the session or the application can sometimes resolve the issue.
  Check for Background Jobs: Ensure that no background jobs are holding locks that could be causing the issue.
  System Monitoring: Monitor system performance and check for any database issues that might be affecting lock management.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address known issues related to lock management errors.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: Check system logs for any related errors or warnings.
  SM37: Monitor background jobs to see if any jobs are causing locks.
  
  
  SAP Notes: Search for specific SAP Notes related to CPWB802 or lock management errors for additional troubleshooting steps or patches.
  Documentation: Review SAP documentation on lock management to understand how locks are handled and best practices for managing them.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.