How To Fix BRAIN174 - System is trying to read with LOCK = True although it was not locked

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 174

• Message text: System is trying to read with LOCK = True although it was not locked

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message BRAIN174 - System is trying to read with LOCK = True although it was not locked ?

  The SAP error message BRAIN174 indicates that the system is attempting to read data with a lock status set to "True," but the data in question is not actually locked. This situation can arise in various scenarios, particularly in environments where multiple users or processes are accessing the same data concurrently.
  Cause:
  
  Concurrency Issues: The error often occurs in a multi-user environment where multiple processes are trying to access or modify the same data simultaneously.
  Lock Table Issues: The lock table may not be updated correctly, leading to inconsistencies in the lock status of the data.
  Programming Errors: Custom code or enhancements may not handle locking mechanisms properly, leading to attempts to read data that is not locked.
  Database Issues: There may be underlying database issues that prevent proper locking and unlocking of records.
  
  Solution:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If there are stale locks, they can be deleted if they are no longer needed.
  Review Custom Code: If the error is occurring in a custom program, review the code to ensure that it correctly implements locking mechanisms. Ensure that locks are being set and released appropriately.
  Database Consistency: Check the database for consistency issues. You may need to run database consistency checks or consult with your database administrator.
  SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  System Logs: Review system logs (transaction SM21) for any related errors or warnings that could provide more context about the issue.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SM21 (for system logs), and SE80 (for reviewing custom code).
  Lock Management: Understand how SAP handles locking and the different types of locks (e.g., exclusive locks, shared locks) to better troubleshoot locking issues.
  Performance Monitoring: Monitor system performance and user activity to identify patterns that may lead to locking issues.
  
  By following these steps, you should be able to diagnose and resolve the BRAIN174 error in your SAP system.