How To Fix /SAPAPO/MA090 - An error occurred while locking the database &

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MA -

• Message number: 090

• Message text: An error occurred while locking the database &

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 /SAPAPO/MA090 - An error occurred while locking the database & ?

  The SAP error message /SAPAPO/MA090 An error occurred while locking the database typically indicates that there is an issue with database locking mechanisms in the SAP Advanced Planning and Optimization (APO) module. This error can occur for various reasons, including:
  Causes:
  
  Database Lock Conflicts: Another process may be holding a lock on the database table that your transaction is trying to access.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  Deadlocks: Two or more processes may be waiting for each other to release locks, leading to a deadlock situation.
  Database Performance Issues: Slow database performance can lead to timeouts and locking issues.
  Configuration Issues: Incorrect configuration of the database or SAP system can lead to locking problems.
  
  Solutions:
  
  
  Identify Locking Issues:
  
  Use transaction SM12 to check for existing locks. You can see which users or processes are holding locks and release them if necessary.
  Use transaction SM21 to check the system log for any related error messages.
  
  
  
  Analyze Long-Running Transactions:
  
  Use transaction SM50 or SM66 to monitor active processes and identify any long-running transactions that may be causing locks.
  
  
  
  Check for Deadlocks:
  
  Review the system logs and trace files to identify any deadlock situations. You may need to adjust the application logic to avoid deadlocks.
  
  
  
  Database Performance Tuning:
  
  Work with your database administrator to optimize database performance. This may include indexing, query optimization, or adjusting database parameters.
  
  
  
  Increase Lock Timeout:
  
  If appropriate, consider increasing the lock timeout settings in the SAP system to allow longer wait times for locks to be released.
  
  
  
  Review Configuration:
  
  Ensure that the SAP system and database are configured correctly for your specific workload and usage patterns.
  
  
  
  Restart the Application:
  
  In some cases, restarting the application or the SAP system may help clear temporary locking issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review SAP documentation for best practices on database locking and performance tuning.
  Support: If the issue persists, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the locking issue associated with the /SAPAPO/MA090 error message.