How To Fix BGRFC318 - Queue prefix &1 is already used

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 318

• Message text: Queue prefix &1 is already used

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BGRFC318 - Queue prefix &1 is already used ?

  The SAP error message BGRFC318 indicates that there is an issue with the queue prefix being used in the background RFC (BGRFC) processing. Specifically, the message states that the queue prefix specified is already in use, which can lead to conflicts in processing.
  Cause:
  
  
  Queue Prefix Conflict: The error typically occurs when there is an attempt to create a new BGRFC queue with a prefix that is already associated with an existing queue. This can happen if:
  
  Multiple processes are trying to create queues with the same prefix simultaneously.
  There is a misconfiguration in the BGRFC setup.
  The system has not properly cleaned up old queues that are still in use.
  
  
  
  System Configuration Issues: Incorrect configuration settings in the BGRFC setup can lead to this error, especially if the same queue prefix is defined in multiple places.
  
  
  Solution:
  
  
  Check Existing Queues: Use transaction SM58 (for transactional RFC) or SMQ1/SMQ2 (for queued RFC) to check the existing queues. Look for any queues that are using the same prefix and determine if they are still in use.
  
  
  Change Queue Prefix: If possible, change the queue prefix in your configuration to a unique value that is not currently in use. This can be done in the relevant BGRFC configuration settings.
  
  
  Clean Up Old Queues: If there are old or orphaned queues that are no longer needed, consider deleting them. This can help free up the prefix for new queues.
  
  
  Review Configuration: Ensure that your BGRFC configuration is set up correctly. Check the settings in transaction SMD (SAP Solution Manager Diagnostics) or any relevant configuration transactions.
  
  
  Restart Processes: If the issue persists, consider restarting the relevant background processes or the entire application server to clear any locks or conflicts.
  
  
  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:
  
  BGRFC: Background RFC is a mechanism in SAP that allows for asynchronous processing of RFC calls, which can improve performance and reliability in distributed systems.
  Transaction Codes: Familiarize yourself with transaction codes like SM58, SMQ1, SMQ2, and SMD for monitoring and managing RFC queues.
  SAP Documentation: Refer to the official SAP documentation for detailed information on BGRFC configuration and management.
  
  If the problem continues after trying the above solutions, it may be necessary to engage SAP support for further assistance.