How To Fix CNVMBTRFC096 - Destination &3 with different system numbers: &1 <-> &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 096

• Message text: Destination &3 with different system numbers: &1 <-> &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTRFC096 - Destination &3 with different system numbers: &1 <-> &2 ?

  The SAP error message CNVMBTRFC096 indicates a mismatch in the system numbers between two systems that are involved in a remote function call (RFC). This typically occurs during data migration or when using tools that require communication between different SAP systems.
  Cause:
  The error message CNVMBTRFC096 is triggered when:
  
  There is an attempt to connect to a destination system (denoted as &3) that has a different system number than the source system (denoted as &1) and the target system (denoted as &2).
  The system numbers are defined in the SAP system configuration, and they must match for the RFC connection to be valid.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check System Configuration:
  
  Verify the system numbers of both the source and target systems. You can do this by checking the system properties in the SAP GUI.
  Ensure that the RFC destination is correctly configured in transaction SM59.
  
  
  
  Update RFC Destination:
  
  If the RFC destination is pointing to the wrong system, update it to point to the correct system with the matching system number.
  Make sure that the connection type (e.g., TCP/IP) and other parameters are correctly set.
  
  
  
  Check Logical System Configuration:
  
  Ensure that the logical system names are correctly defined in transaction SALE (for ALE/IDoc configuration) and that they correspond to the correct system numbers.
  
  
  
  Test RFC Connection:
  
  Use transaction SM59 to test the RFC connection to ensure that it is working correctly after making any changes.
  
  
  
  Review Transport Routes:
  
  If this error occurs during a transport or migration process, check the transport routes and ensure that they are correctly set up to allow communication between the systems.
  
  
  
  Consult Documentation:
  
  If you are using a specific migration tool or process, refer to the relevant documentation for any additional configuration steps that may be required.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SALE: Logical System Configuration
  SICF: HTTP Services (for web-based RFC calls)
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  System Logs:
  
  Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  By following these steps, you should be able to identify and resolve the cause of the CNVMBTRFC096 error in your SAP environment.