How To Fix SG027 - System lock error: Inform system administrator

SAP Error Message - Details

• Message type: E = Error

• Message class: SG - Global Pool for Cross-Application Developments

• Message number: 027

• Message text: System lock error: Inform system administrator

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 SG027 - System lock error: Inform system administrator ?

  The SAP error message SG027, which indicates a "System lock error: Inform system administrator," typically arises when there is an issue with the system locks that are used to manage concurrent access to resources in SAP. This error can occur in various scenarios, such as during transaction processing, data updates, or when accessing certain functionalities.
  Causes of SG027 Error
  
  Lock Table Issues: The lock table may be full or corrupted, preventing new locks from being created.
  Database Issues: Problems with the underlying database can lead to lock management issues.
  Long-Running Transactions: If a transaction holds a lock for an extended period, it can lead to contention and subsequent errors.
  System Configuration: Incorrect configuration settings related to locks or system resources can also trigger this error.
  User Authorization: Insufficient user permissions to access or modify certain data can lead to lock errors.
  
  Solutions to SG027 Error
  
  
  Check Lock Entries:
  
  Use transaction code SM12 to view and manage lock entries. You can check for any locks that are no longer needed and delete them if necessary.
  
  
  
  Monitor System Performance:
  
  Use transaction code SM66 to monitor active processes and identify any long-running transactions that may be causing lock contention.
  
  
  
  Database Check:
  
  Ensure that the database is functioning correctly. Check for any database locks or issues that may be affecting performance.
  
  
  
  Increase Lock Table Size:
  
  If the lock table is full, consider increasing its size. This can be done by adjusting the relevant parameters in the SAP profile (e.g., enque/table_size).
  
  
  
  Review System Configuration:
  
  Check the configuration settings related to locks and ensure they are set appropriately for your system's workload.
  
  
  
  User Authorization:
  
  Verify that the user encountering the error has the necessary authorizations to perform the action that is causing the lock error.
  
  
  
  Restart the Application Server:
  
  In some cases, restarting the application server can help clear any temporary issues related to locks.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM66: Monitor global work processes.
  SM21: Check system logs for any related errors or warnings.
  
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs and the context in which the error occurred.
  
  
  Documentation: Review SAP documentation related to system locks and performance tuning for additional insights and best practices.
  
  
  By following these steps, you should be able to diagnose and resolve the SG027 error effectively.