How To Fix MDG_MDF8128 - Conversion unnecessary; the existing table has no data


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MDG_MDF8 - Change Management

  • Message number: 128

  • Message text: Conversion unnecessary; the existing table has no data

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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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Smart SAP Assistant

  • What is the cause and solution for SAP error message MDG_MDF8128 - Conversion unnecessary; the existing table has no data ?

    The SAP error message MDG_MDF8128 indicates that a conversion process is unnecessary because the existing table does not contain any data. This error typically arises in the context of Master Data Governance (MDG) when attempting to perform a data conversion or migration operation.

    Cause:

    1. Empty Table: The primary cause of this error is that the target table where the data is supposed to be converted or migrated is empty. Since there is no data to convert, the system raises this message.
    2. Incorrect Configuration: There may be a misconfiguration in the data model or the conversion process that leads the system to attempt a conversion when it is not needed.
    3. Data Load Process: If the data load process is not executed correctly or if it has been skipped, the target table may remain empty.

    Solution:

    1. Check Data Existence: Verify if the source table has data that needs to be converted. If the source table is also empty, then no action is needed.
    2. Review Configuration: Ensure that the configuration for the data model and conversion process is set up correctly. Check if the mapping and transformation rules are correctly defined.
    3. Execute Data Load: If the source table has data, ensure that the data load process is executed correctly to populate the target table before attempting the conversion again.
    4. Log Analysis: Review the logs for any preceding errors or warnings that might indicate why the data is not present in the target table.
    5. Consult Documentation: Refer to SAP documentation or notes related to the specific MDG version you are using for any additional troubleshooting steps or known issues.

    Related Information:

    • MDG Data Model: Understanding the data model in MDG is crucial, as it defines how data is structured and how conversions are handled.
    • SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
    • Transaction Codes: Familiarize yourself with relevant transaction codes (like MDGIMG, MDG_MDF, etc.) that can help you navigate the MDG configuration and data management processes.
    • Support Community: If the issue persists, consider reaching out to the SAP Community or SAP Support for further assistance.

    By following these steps, you should be able to address the MDG_MDF8128 error effectively.

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