How To Fix XMS_ADM401 - Error in lock management

SAP Error Message - Details

• Message type: E = Error

• Message class: XMS_ADM - XMS - Administration

• Message number: 401

• Message text: Error in lock management

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 XMS_ADM401 - Error in lock management ?

  The SAP error message XMS_ADM401 indicates an issue related to lock management within the SAP system. This error typically arises when there is a problem with the locking mechanism that SAP uses to ensure data integrity during concurrent access by multiple users or processes.
  Causes of XMS_ADM401 Error
  
  Lock Table Overflow: The lock table may be full, preventing new locks from being created.
  Deadlocks: Two or more processes may be waiting for each other to release locks, causing a deadlock situation.
  Long-Running Transactions: A transaction that holds locks for an extended period can lead to lock contention.
  System Configuration Issues: Incorrect configuration settings related to lock management in the SAP system.
  Database Issues: Problems with the underlying database that affect lock management.
  
  Solutions to XMS_ADM401 Error
  
  
  Check Lock Table Size:
  
  Use transaction code SM12 to view and manage locks. Check if the lock table is full and consider increasing its size if necessary.
  
  
  
  Analyze and Resolve Deadlocks:
  
  Use transaction code SM21 to check the system log for deadlock situations. Identify the processes involved and resolve the deadlock by terminating one of the processes if needed.
  
  
  
  Monitor Long-Running Transactions:
  
  Use transaction code SM50 or SM66 to monitor active processes. Identify any long-running transactions and investigate why they are holding locks for too long.
  
  
  
  Adjust Configuration Settings:
  
  Review the configuration settings related to lock management in the SAP system. Consult with your Basis team to ensure that the settings are optimal for your environment.
  
  
  
  Database Maintenance:
  
  Perform regular database maintenance to ensure that the database is functioning correctly. This may include checking for locks at the database level and optimizing performance.
  
  
  
  Restart the Application Server:
  
  In some cases, restarting the application server can help clear temporary issues related to lock management.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log for monitoring errors and issues.
  SM50/SM66: Monitor active processes and transactions.
  
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to lock management issues. You can search for relevant notes in the SAP Support Portal.
  
  
  Documentation: Review SAP documentation on lock management and performance tuning for further insights into best practices.
  
  
  If the issue persists after trying the above solutions, it may be necessary to engage SAP support for more in-depth troubleshooting.