How To Fix CNV_MBT_XAPP_A023 - RFC error: &1 &2


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CNV_MBT_XAPP_A - Message classes for all Cross-Application functions

  • Message number: 023

  • Message text: RFC error: &1 &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.

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Smart SAP Assistant

  • What is the cause and solution for SAP error message CNV_MBT_XAPP_A023 - RFC error: &1 &2 ?

    The SAP error message CNV_MBT_XAPP_A023 RFC error: &1 &2 typically indicates an issue related to Remote Function Call (RFC) communication between systems or within the same system. This error is often encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.

    Causes:

    1. Network Issues: There may be network connectivity problems between the systems involved in the RFC call.
    2. Authorization Issues: The user executing the RFC call may not have the necessary authorizations to perform the operation.
    3. Configuration Issues: The RFC destination may not be correctly configured in the SAP system.
    4. System Load: High system load or performance issues may lead to timeouts or failures in RFC communication.
    5. Incorrect Parameters: The parameters being passed in the RFC call may be incorrect or not matching the expected format.

    Solutions:

    1. Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or telnet to test connectivity.
    2. Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that it is correctly set up and that the connection test is successful.
    3. Check Authorizations: Ensure that the user executing the RFC call has the necessary authorizations. You can check this in transaction SU53 after the error occurs.
    4. Monitor System Performance: Check the system performance and load. If the system is under heavy load, consider scheduling the migration during off-peak hours.
    5. Review Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide additional context about the failure.
    6. Parameter Validation: Review the parameters being passed in the RFC call to ensure they are correct and in the expected format.

    Related Information:

    • SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the error message.
    • Transaction Codes: Familiarize yourself with transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) for troubleshooting.
    • Documentation: Review the official SAP documentation for the specific migration tool or process you are using, as it may provide additional insights or troubleshooting steps.

    If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurred.

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