How To Fix SF518 - System error occurred during locking

SAP Error Message - Details

• Message type: E = Error

• Message class: SF - SAPfind: Message Texts

• Message number: 518

• Message text: System error occurred during locking

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SF518 - System error occurred during locking ?

  The SAP error message SF518, which states "System error occurred during locking," typically indicates that there is an issue related to the locking mechanism in the SAP system. This can occur in various scenarios, such as when multiple users are trying to access or modify the same data simultaneously, or when there is a problem with the underlying database or application server.
  Causes:
  
  Database Lock Conflicts: Multiple transactions trying to access the same data can lead to locking conflicts.
  System Performance Issues: High load on the SAP system or database can cause timeouts or failures in acquiring locks.
  Network Issues: Connectivity problems between the application server and the database can lead to locking errors.
  Configuration Issues: Incorrect configuration of the SAP system or database settings can lead to locking problems.
  Software Bugs: There may be bugs in the SAP application or database that cause locking issues.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If there are stale locks, you can delete them if you have the necessary authorizations.
  Review System Performance: Monitor system performance using transaction codes like ST03N or SM66 to identify any bottlenecks or high load situations.
  Database Health Check: Ensure that the database is functioning correctly. Check for any issues in the database logs and perform necessary maintenance.
  Network Diagnostics: Verify network connectivity between the application server and the database server. Check for any network-related issues that could be causing the problem.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address known issues related to locking errors. Apply any recommended patches or updates.
  Consult Basis Team: If the issue persists, consult your SAP Basis team for further analysis and troubleshooting. They may need to look into system logs or perform deeper diagnostics.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: View system logs for errors and warnings.
  ST22: Analyze dump analysis for ABAP runtime errors.
  SM37: Monitor background jobs to see if any jobs are causing locking issues.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on locking mechanisms and error handling.
  
  
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  
  If the problem continues after trying the above solutions, it may be necessary to escalate the issue to SAP support for further assistance.