How To Fix BGRFC120 - More than &3 units in queue &1 of destination &2

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 120

• Message text: More than &3 units in queue &1 of destination &2

What causes this issue?

The number of units in this queue has exceeded a specific threshold. For
performance reasons, only a certain number of units can be displayed.

System Response

The system informs the user that too many units are in the queue.

How to fix this error?

If you want to see all units in a queue, choose "Display All Units". If
you want to restrict the display again, choose "Restrict Number of Units
Displayed".
You can modify the number of displayed units on the selection screen.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BGRFC120 - More than &3 units in queue &1 of destination &2 ?

  The SAP error message BGRFC120 indicates that there are more than a specified number of units (messages) queued in the background RFC (BGRFC) queue for a particular destination. This can lead to performance issues or indicate that the system is not processing messages as expected.
  Cause:
  
  High Volume of Messages: The system is generating more messages than the BGRFC can process in a timely manner.
  Processing Delays: The target system or the processing logic may be slow or experiencing issues, causing a backlog.
  Configuration Issues: The BGRFC configuration may not be optimized for the volume of messages being processed.
  Network Issues: Connectivity problems between the systems can lead to delays in processing messages.
  Resource Constraints: Insufficient system resources (CPU, memory, etc.) on the application server can slow down processing.
  
  Solution:
  
  Monitor and Analyze: Use transaction codes like SM58 (for transactional RFC) and SLG1 (for logging) to monitor the status of the BGRFC queues and identify any stuck or failed messages.
  Increase Queue Limit: If the volume of messages is expected to be high, consider increasing the limit for the number of messages allowed in the queue. This can be done in the BGRFC configuration.
  Optimize Processing Logic: Review the processing logic for efficiency. Ensure that the target system can handle the incoming messages effectively.
  Check System Resources: Monitor system performance and resource usage. If necessary, allocate more resources to the application server.
  Network Health Check: Ensure that there are no network issues affecting communication between systems. Check for latency or connectivity problems.
  Batch Processing: If applicable, consider implementing batch processing to reduce the number of messages sent at once.
  Error Handling: Implement proper error handling and retry mechanisms to manage failed messages effectively.
  
  Related Information:
  
  Transaction Codes: 
  
  SMQ1 and SMQ2 for monitoring queues.
  SM58 for monitoring transactional RFC.
  SLG1 for checking logs related to BGRFC.
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to BGRFC issues.
  Documentation: Review SAP documentation on BGRFC for best practices and configuration guidelines.
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the BGRFC120 error and improve the performance of your SAP system.