How To Fix SCWN552 - System &1(&2): Error in lock management. No data written

SAP Error Message - Details

• Message type: E = Error

• Message class: SCWN - Messages Note installation and management

• Message number: 552

• Message text: System &1(&2): Error in lock management. No data written

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SCWN552 - System &1(&2): Error in lock management. No data written ?

  The SAP error message SCWN552 indicates that there is an issue with lock management in the SAP system, which prevents data from being written. This error typically occurs in scenarios where multiple processes are trying to access or modify the same data simultaneously, leading to a conflict in lock management.
  Causes:
  
  Lock Conflicts: Multiple users or processes are trying to access the same data, leading to a lock conflict.
  Database Issues: Problems with the underlying database can also lead to lock management errors.
  System Performance: High system load or performance issues can cause delays in lock management.
  Configuration Issues: Incorrect configuration settings related to lock management in the SAP system.
  Transport Issues: If the error occurs during a transport, it may be due to locks not being released properly.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find unnecessary locks, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  Review System Logs: Check the system logs (transaction SM21) for any related errors or warnings that might provide more context about the issue.
  Analyze Performance: Monitor system performance using transaction ST03N or ST04 to identify any bottlenecks that might be causing lock management issues.
  Database Check: If the issue persists, check the database for any inconsistencies or performance issues. You may need to involve your database administrator.
  Configuration Review: Review the configuration settings related to lock management in your SAP system to ensure they are set correctly.
  Restart Processes: If a specific process is causing the issue, consider restarting it to release any locks it may be holding.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: System log.
  ST03N: Workload analysis.
  ST04: Database performance analysis.
  
  
  SAP Support: If the issue cannot be resolved with the above steps, consider reaching out to SAP Support for further assistance, providing them with detailed information about the error and the context in which it occurred.
  
  Always ensure that you have proper backups and that you are following your organization's change management policies when making changes to the system.