How To Fix UKM_COMM002 - System error during locking

SAP Error Message - Details

• Message type: E = Error

• Message class: UKM_COMM - Messages for Liability Update and Line Item Update

• Message number: 002

• Message text: System error during locking

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 UKM_COMM002 - System error during locking ?

  The SAP error message UKM_COMM002 indicates a system error that occurred during the locking process in the context of the SAP system, particularly related to the SAP Credit Management module (UKM stands for "Unternehmensrisikomanagement" or "Corporate Risk Management" in German). This error typically arises when there are issues with the locking mechanism that SAP uses to prevent data inconsistencies during concurrent access.
  Causes:
  
  Database Lock Issues: The error may occur due to problems with database locks, such as deadlocks or timeouts.
  System Performance: High system load or performance issues can lead to failures in acquiring locks.
  Configuration Issues: Incorrect configuration settings in the SAP system related to locking mechanisms.
  Transport Issues: If there are recent transports or changes in the system, they might have affected the locking behavior.
  Network Issues: Problems with network connectivity can also lead to communication failures during the locking process.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) for any related error messages that could provide more context about the issue.
  Transaction SM12: Use transaction SM12 to check for any orphaned locks. If you find locks that should not be there, you can delete them, but be cautious as this can lead to data inconsistencies if done improperly.
  Performance Monitoring: Monitor system performance using transaction ST03 or ST04 to identify any bottlenecks that might be affecting locking.
  Review Configuration: Check the configuration settings related to the locking mechanism in the SAP system. Ensure that they are set correctly.
  Restart Services: If the issue persists, consider restarting the affected services or the entire SAP system, if feasible.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error. There may be patches or updates available that resolve known issues.
  Contact SAP Support: If the problem cannot be resolved with the above steps, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SM12 (Display and Delete Locks), ST22 (Dump Analysis), and ST03 (Workload Analysis).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation related to Credit Management and locking mechanisms for more detailed insights.
  
  By following these steps, you should be able to diagnose and potentially resolve the UKM_COMM002 error in your SAP system.