How To Fix LSO851 - Database lock could not be set for the insertion

SAP Error Message - Details

• Message type: E = Error

• Message class: LSO - Publisher and Learner Account

• Message number: 851

• Message text: Database lock could not be set for the insertion

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LSO851 - Database lock could not be set for the insertion ?

  The SAP error message LSO851 indicates that a database lock could not be set for an insertion operation. This typically occurs in the context of SAP Learning Solution (LSO) or other modules where database operations are performed. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  
  Database Lock Conflicts: Another transaction may be holding a lock on the database table that you are trying to insert data into. This can happen if multiple users or processes are trying to access the same data simultaneously.
  
  
  Long-Running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other transactions to fail when they attempt to acquire the same lock.
  
  
  Deadlocks: In some cases, a deadlock situation may arise where two or more transactions are waiting for each other to release locks, preventing any of them from proceeding.
  
  
  Configuration Issues: There may be configuration issues in the database or the SAP system that prevent locks from being set correctly.
  
  
  Database Performance Issues: If the database is under heavy load or experiencing performance issues, it may not be able to handle lock requests efficiently.
  
  
  Solutions:
  
  
  Check for Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find locks that are no longer needed, you can delete them (if you have the necessary authorizations).
  
  
  Review Long-Running Transactions: Identify any long-running transactions using transaction code SM66 (global overview of active processes) or SM50 (local process overview). If you find any transactions that are holding locks for too long, you may need to investigate and resolve them.
  
  
  Increase Timeout Settings: If applicable, consider increasing the timeout settings for database locks in your SAP system configuration.
  
  
  Optimize Database Performance: Ensure that the database is properly optimized and that there are no performance bottlenecks. This may involve database tuning, indexing, or hardware upgrades.
  
  
  Retry the Operation: Sometimes, simply retrying the operation after a short delay can resolve the issue, especially if it was caused by a temporary lock.
  
  
  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: Familiarize yourself with transaction codes like SM12 (lock entries), SM66 (active processes), and SM50 (process overview) for monitoring and troubleshooting.
  Database Administration: If you have access to database administration tools, you may want to check for locks and performance issues directly at the database level.
  SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the LSO851 error in your SAP system.