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How To Fix T2555 - RFC connection &1 interrupted; trying RFC back-up connection &2


SAP Error Message - Details

  • Message type: E = Error

  • Message class: T2 - General Treasury

  • Message number: 555

  • Message text: RFC connection &1 interrupted; trying RFC back-up connection &2

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  • 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.

    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

    Unfortunately, there isn't any extra information in this error notice.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


Smart SAP Assistant

  • What is the cause and solution for SAP error message T2555 - RFC connection &1 interrupted; trying RFC back-up connection &2 ?

    The SAP error message T2555 indicates that an RFC (Remote Function Call) connection has been interrupted, and the system is attempting to establish a backup connection. This can occur for various reasons, and understanding the cause and potential solutions is essential for troubleshooting.

    Causes of the Error

    1. Network Issues: Temporary network disruptions or instability can lead to interrupted connections.
    2. Timeout Settings: If the RFC connection times out due to inactivity or long-running processes, it may be interrupted.
    3. System Load: High load on the SAP system or the database can cause delays or interruptions in the RFC connection.
    4. Configuration Issues: Incorrect settings in the RFC destination configuration can lead to connection problems.
    5. Firewall or Security Settings: Firewalls or security settings may block or interrupt the connection.
    6. SAP System Updates: Changes or updates to the SAP system can sometimes lead to temporary connection issues.

    Solutions

    1. Check Network Connectivity: Ensure that the network connection between the systems is stable. You can use tools like ping or traceroute to diagnose network issues.
    2. Review Timeout Settings: Check the timeout settings for the RFC connection in transaction SM59. You may need to increase the timeout values.
    3. Monitor System Performance: Use transaction ST03N or SM66 to monitor system performance and identify any bottlenecks or high load situations.
    4. Verify RFC Destination Configuration: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that all parameters are correctly set.
    5. Check Firewall Settings: Ensure that the necessary ports for RFC communication are open and not being blocked by firewalls.
    6. Review SAP Notes: Check for any relevant SAP Notes that may address known issues with RFC connections. You can search for notes related to your specific SAP version.
    7. Test the RFC Connection: In transaction SM59, you can test the RFC connection to see if it is working correctly. This can help identify if the issue is with the connection itself.
    8. Consult Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the interruption.

    Related Information

    • Transaction Codes:

      • SM59: RFC Destinations
      • ST03N: Workload Analysis
      • SM21: System Log
      • SM66: Global Work Process Overview
    • SAP Notes: Always check the SAP Support Portal for the latest notes and updates related to RFC issues.

    • Documentation: Review SAP documentation for best practices on configuring and maintaining RFC connections.

    By following these steps, you should be able to diagnose and resolve the issue related to the T2555 error message in SAP. If the problem persists, consider reaching out to SAP support for further assistance.

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