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How To Fix TU299 - INTERNAL: Funcion module &1; backgr. mode is only supported when creating


SAP Error Message - Details

  • Message type: E = Error

  • Message class: TU - Billing/Scheduling/Budget Billing

  • Message number: 299

  • Message text: INTERNAL: Funcion module &1; backgr. mode is only supported when creating

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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.



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    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 TU299 - INTERNAL: Funcion module &1; backgr. mode is only supported when creating ?

    The SAP error message TU299 indicates an issue related to the use of a function module in background processing. Specifically, it suggests that the function module you are trying to execute is not compatible with background processing unless it is being used for creation purposes.

    Cause:

    The error typically arises when:

    1. You are trying to execute a function module that is designed to be run in foreground mode, but you are attempting to run it in background mode.
    2. The function module is not designed to handle background processing for the specific operation you are trying to perform (e.g., updating or changing records instead of creating them).

    Solution:

    To resolve this error, consider the following steps:

    1. Check Function Module Documentation: Review the documentation for the function module you are using to confirm whether it supports background processing and under what conditions.

    2. Use Foreground Processing: If the function module is not designed for background processing, you may need to run it in foreground mode instead. This can be done by changing the execution method in your program or transaction.

    3. Modify the Logic: If you need to perform the operation in background mode, consider using a different function module that is designed for background processing or modify your logic to ensure that the operation is a creation operation.

    4. Consult with SAP Support: If you are unsure about the function module's capabilities or if you believe there is a bug, consider reaching out to SAP support for further assistance.

    Related Information:

    • Function Module: A reusable piece of code in SAP that can be called from various programs. Each function module has specific parameters and expected behaviors.
    • Background Processing: A method of executing programs or reports in SAP without user interaction, allowing for batch processing of tasks.
    • Foreground Processing: Running programs or transactions interactively, where user input is required.

    Additional Tips:

    • Always test changes in a development or quality assurance environment before applying them to production.
    • Review any recent changes in your SAP environment that might have affected the function module's behavior.
    • Ensure that you have the necessary authorizations to execute the function module in the desired mode.

    By following these steps, you should be able to address the TU299 error and ensure that your SAP processes run smoothly.

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