How To Fix BGRFC304 - bgRFC Supervisor: Destination &1 cannot have a system number

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 304

• Message text: bgRFC Supervisor: Destination &1 cannot have a system number

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BGRFC304 - bgRFC Supervisor: Destination &1 cannot have a system number ?

  The SAP error message BGRFC304 indicates that there is an issue with the configuration of a bgRFC (background Remote Function Call) destination. Specifically, the error message states that the destination specified cannot have a system number. This typically occurs when the destination is incorrectly defined in the SAP system.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Incorrect Destination Configuration: The bgRFC destination is configured with a system number, which is not allowed. In bgRFC, the destination should not include a system number as it is meant for communication between systems without specifying a particular instance.
  Misconfiguration in the RFC Destination: The RFC destination might be incorrectly set up in transaction SM59, leading to this error when trying to use it in bgRFC.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check the bgRFC Destination Configuration:
  
  Go to transaction SM59.
  Locate the RFC destination that is causing the issue.
  Ensure that the destination does not include a system number. The destination should be defined as a logical system without specifying a particular instance.
  
  
  
  Modify the Destination:
  
  If the destination is incorrectly configured, modify it to remove the system number.
  Ensure that the destination is set up as a "T" (TCP/IP) type and does not include instance-specific details.
  
  
  
  Check bgRFC Configuration:
  
  Go to transaction SBGRFCMON to monitor bgRFC queues and check for any other related issues.
  Ensure that the bgRFC configuration is correct and that the queues are functioning properly.
  
  
  
  Test the Connection:
  
  After making the necessary changes, test the RFC connection to ensure that it is working correctly.
  You can use the "Connection Test" feature in transaction SM59 to verify the connection.
  
  
  
  Review Documentation:
  
  If you are unsure about the configuration, refer to the SAP documentation or consult with your SAP Basis team for best practices on setting up bgRFC destinations.
  
  
  
  Related Information:
  
  bgRFC: Background Remote Function Call is a mechanism in SAP that allows asynchronous communication between different SAP systems or between different applications within the same system.
  Transaction Codes:
  
  SM59: Used for managing RFC destinations.
  SBGRFCMON: Used for monitoring bgRFC queues.
  
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates related to bgRFC configuration and troubleshooting.
  
  By following these steps, you should be able to resolve the BGRFC304 error and ensure that your bgRFC destinations are correctly configured.