How To Fix BGRFC396 - bgRFC Inbound Destination: qRFC LUWs still exist for queue prefix &2

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 396

• Message text: bgRFC Inbound Destination: qRFC LUWs still exist for queue prefix &2

What causes this issue?

An attempt was made to register a queue prefix for bgRFC. However, LUWs
from classic qRFC still exist for this queue prefix. This means that
this queue prefix cannot yet be registered for bgRFC.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Delete the classic qRFC LUWs. You can use transaction SMQ2 (the inbound
qRFC monitor) to do this.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BGRFC396 - bgRFC Inbound Destination: qRFC LUWs still exist for queue prefix &2 ?

  The SAP error message BGRFC396 indicates that there are still queued Logical Units of Work (LUWs) in the qRFC (queued Remote Function Call) queue for a specific queue prefix. This error typically arises in the context of background processing and asynchronous communication between SAP systems.
  Cause:
  The error occurs when:
  
  There are unprocessed or pending LUWs in the qRFC queue for the specified queue prefix.
  The system is trying to perform an operation that requires the queue to be empty, such as deleting or deactivating the queue.
  There may be issues with the processing of the LUWs, such as errors in the processing logic or connectivity issues between systems.
  
  Solution:
  To resolve the BGRFC396 error, you can follow these steps:
  
  
  Check the Queue Status:
  
  Use transaction SMQ1 (for outbound queues) or SMQ2 (for inbound queues) to check the status of the queues.
  Look for any LUWs that are still in the queue and analyze their status.
  
  
  
  Process or Delete LUWs:
  
  If there are LUWs that are stuck or in error status, you may need to process them manually or delete them if they are no longer needed.
  You can use transaction SM58 to check for any failed RFC calls and resolve any issues.
  
  
  
  Monitor Background Jobs:
  
  Check if there are any background jobs that are responsible for processing these LUWs. Ensure that they are running correctly and not encountering errors.
  
  
  
  Check for Errors:
  
  Investigate any error logs or dumps that may provide more information about why the LUWs are not being processed. Use transaction ST22 for dumps and SLG1 for application logs.
  
  
  
  Adjust Queue Settings:
  
  If necessary, adjust the settings for the qRFC queues to ensure that they can handle the expected load and that there are no configuration issues.
  
  
  
  Restart the qRFC Process:
  
  In some cases, restarting the qRFC process or the application server may help clear any temporary issues.
  
  
  
  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:
  
  qRFC: A queuing mechanism in SAP that allows for asynchronous processing of function calls between systems.
  LUW: Logical Unit of Work, a sequence of operations that are treated as a single unit of work.
  Transaction Codes:
  
  SMQ1: Monitor outbound queues.
  SMQ2: Monitor inbound queues.
  SM58: Monitor asynchronous RFC calls.
  ST22: Analyze dumps.
  SLG1: View application logs.
  
  
  
  By following these steps, you should be able to identify the cause of the BGRFC396 error and take appropriate action to resolve it.