How To Fix KA742 - System error during locking

SAP Error Message - Details

• Message type: E = Error

• Message class: KA - CO Overhead Costs: Overhead, Accrual Calculation

• Message number: 742

• Message text: System error during locking

What causes this issue?

System error during locking.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KA742 - System error during locking ?

  The SAP error message KA742 ("System error during locking") typically indicates that there is an issue with the locking mechanism in the SAP system, which is essential for ensuring data integrity during transactions. This error can occur in various contexts, such as during the posting of documents, running reports, or executing transactions that require exclusive access to certain data.
  Causes:
  
  Database Lock Issues: The error may arise due to problems with the database locks, such as deadlocks or timeouts.
  System Performance: High system load or performance issues can lead to locking problems.
  Configuration Issues: Incorrect configuration settings in the SAP system or database can lead to locking errors.
  Transport Issues: If there are issues with transport requests that affect the locking mechanism, this error may occur.
  User Session Conflicts: Multiple users trying to access the same data simultaneously can lead to locking conflicts.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. You can delete any unnecessary locks that may be causing the issue.
  Review System Performance: Monitor system performance using transaction codes like ST22 (dump analysis) and SM21 (system log) to identify any underlying issues.
  Database Administration: Work with your database administrator to check for any database-level issues, such as deadlocks or performance bottlenecks.
  Configuration Review: Ensure that the SAP system and database configurations are set correctly, particularly those related to locking mechanisms.
  User Coordination: If multiple users are accessing the same data, coordinate with them to avoid conflicts. Consider implementing a locking strategy if necessary.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), ST22 (dump analysis), and SM37 (job monitoring).
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs and any relevant logs.
  Documentation: Review SAP documentation and community forums for additional insights and troubleshooting steps related to locking issues.
  
  By following these steps, you should be able to diagnose and resolve the KA742 error effectively.