How To Fix /SMB/SC_MAIN093 - System Failure: Cannot lock selection &1-&2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/SC_MAIN -

• Message number: 093

• Message text: System Failure: Cannot lock selection &1-&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/SC_MAIN093 - System Failure: Cannot lock selection &1-&2 ?

  The SAP error message /SMB/SC_MAIN093 System Failure: Cannot lock selection &1-&2 typically indicates that there is an issue with locking mechanisms in the SAP system, particularly related to the selection criteria or data being processed. This error can occur in various contexts, such as during data processing, report generation, or when accessing certain transactions.
  Causes:
  
  Concurrent Access: The error may arise when multiple users or processes are trying to access or modify the same selection criteria or data simultaneously, leading to a locking conflict.
  System Resource Issues: Insufficient system resources or performance issues can prevent the system from acquiring the necessary locks.
  Database Locking: The underlying database may have locks that are preventing the SAP application from obtaining the required locks.
  Configuration Issues: Incorrect configuration settings in the SAP system or the specific application module may lead to locking problems.
  Long-running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other processes to fail.
  
  Solutions:
  
  Check for Concurrent Sessions: Verify if other users or processes are accessing the same data or selection criteria. If possible, coordinate with users to avoid conflicts.
  Transaction Monitoring: Use transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs) to identify any locks that may be causing the issue. You can release unnecessary locks if you have the appropriate permissions.
  System Performance: Monitor system performance and resource usage. If the system is under heavy load, consider optimizing performance or scheduling intensive tasks during off-peak hours.
  Database Administration: Check with your database administrator to ensure that there are no underlying database issues causing locking problems.
  Review Configuration: Ensure that the configuration settings for the relevant SAP modules are correct and optimized for your business processes.
  Restart the Transaction: Sometimes, simply restarting the transaction or the SAP GUI can resolve temporary locking issues.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs for any additional error messages or warnings that may provide context for the locking issue.
  User Permissions: Ensure that users have the necessary permissions to access and modify the data in question, as permission issues can sometimes lead to locking problems.
  
  If the issue persists after trying the above solutions, it may be necessary to escalate the problem to your SAP Basis team or SAP support for further investigation.