How To Fix CRMS4_PS_BUFFER201 - Enqueue: Internal error from enqueue server

SAP Error Message - Details

• Message type: E = Error

• Message class: CRMS4_PS_BUFFER - Social Services Buffer

• Message number: 201

• Message text: Enqueue: Internal error from enqueue server

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 CRMS4_PS_BUFFER201 - Enqueue: Internal error from enqueue server ?

  The SAP error message CRMS4_PS_BUFFER201 indicates an internal error from the enqueue server, which is typically related to issues with the SAP enqueue mechanism. This mechanism is responsible for managing locks on objects in the SAP system to ensure data consistency and integrity during concurrent access.
  Causes:
  
  Enqueue Server Issues: The enqueue server may be down or not functioning correctly.
  Network Problems: There could be network issues affecting communication between the application server and the enqueue server.
  Lock Table Overflow: The lock table may be full, preventing new locks from being created.
  Database Issues: Problems with the underlying database can also lead to enqueue errors.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to enqueue errors.
  
  Solutions:
  
  
  Check Enqueue Server Status:
  
  Use transaction SM12 to check for any existing locks and clear them if necessary.
  Use transaction SM51 to check the status of the enqueue server and ensure it is running.
  
  
  
  Restart Enqueue Server:
  
  If the enqueue server is down, restart it. This can often resolve temporary issues.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues between the application server and the enqueue server.
  
  
  
  Monitor Lock Table:
  
  Check the lock table size and consider increasing it if it is full. This can be done in the SAP profile parameters (e.g., enque/table_size).
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) for any related error messages that might provide more context about the issue.
  
  
  
  Database Health Check:
  
  Perform a health check on the database to ensure it is functioning correctly.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches.
  
  
  
  Consult SAP Support:
  
  If the issue persists, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log.
  SM51: List of active application servers.
  SM37: Job monitoring, to check for any background jobs that may be causing issues.
  
  
  
  SAP Documentation: Review the official SAP documentation for more details on enqueue mechanisms and troubleshooting steps.
  
  
  Performance Monitoring: Regularly monitor system performance and lock usage to prevent future occurrences of this error.
  
  
  By following these steps, you should be able to diagnose and resolve the CRMS4_PS_BUFFER201 error effectively.