How To Fix /IPRO/DBMC223 - System failure while enqueueing class &1; regenerate &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IPRO/DBMC -

• Message number: 223

• Message text: System failure while enqueueing class &1; regenerate &1

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 /IPRO/DBMC223 - System failure while enqueueing class &1; regenerate &1 ?

  The SAP error message /IPRO/DBMC223 System failure while enqueueing class &1; regenerate &1 typically indicates an issue related to the enqueue mechanism in SAP, which is responsible for managing locks on objects to ensure data consistency in a multi-user environment. This specific error suggests that there was a failure when trying to enqueue (lock) a particular class, which is identified by the placeholder &1.
  Causes:
  
  Database Issues: There may be underlying database problems that are preventing the enqueue operation from completing successfully.
  Lock Table Issues: The lock table may be full or corrupted, leading to failures in acquiring locks.
  System Resource Limitations: Insufficient system resources (like memory or CPU) can lead to failures in processing enqueue requests.
  Configuration Issues: Incorrect configuration settings in the SAP system or the database can lead to enqueue failures.
  Transport Issues: If this error occurs during a transport operation, it may be related to issues with the transport directory or the transport management system.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) and enqueue logs (transaction SM12) for any additional error messages or clues that can help identify the root cause.
  Regenerate the Class: As suggested by the error message, you may need to regenerate the class that is causing the issue. This can typically be done using transaction SE80 or SE11, depending on the type of class.
  Clear Lock Entries: If there are stale or unnecessary lock entries, you can clear them using transaction SM12. Be cautious when deleting locks, as this can affect other users.
  Check Database Health: Ensure that the database is functioning correctly. You may need to run database consistency checks or consult your database administrator.
  Increase Lock Table Size: If the lock table is full, consider increasing its size. This can be done by adjusting the profile parameters related to the enqueue service.
  System Restart: In some cases, a system restart may help clear transient issues affecting the enqueue mechanism.
  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:
  
  SM21: System Log
  SM12: Display and Delete Lock Entries
  SE80: Object Navigator (for regenerating classes)
  SE11: Data Dictionary (for database-related objects)
  
  
  SAP Notes: Always check for relevant SAP Notes that may provide fixes or workarounds for known issues related to this error.
  Documentation: Review SAP documentation on enqueue mechanisms and locking to better understand how they work and how to troubleshoot related issues.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.