How To Fix CNV_DMC_MC_EXCEPTION029 - Length of the namespace must be between 1 and 8 characters


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

  • Message number: 029

  • Message text: Length of the namespace must be between 1 and 8 characters

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Smart SAP Assistant

  • What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION029 - Length of the namespace must be between 1 and 8 characters ?

    The SAP error message CNV_DMC_MC_EXCEPTION029 indicates that there is an issue with the length of the namespace being used in a Data Migration Cockpit (DMC) scenario. Specifically, the error states that the length of the namespace must be between 1 and 8 characters. This typically occurs when the namespace provided is either too short (0 characters) or too long (more than 8 characters).

    Cause:

    1. Invalid Namespace Length: The namespace you are trying to use does not meet the required length criteria. It may be empty or exceed the maximum allowed length of 8 characters.
    2. Configuration Error: There may be a misconfiguration in the settings where the namespace is defined or used.

    Solution:

    1. Check Namespace Definition: Review the namespace you are trying to use in your DMC configuration. Ensure that it is defined correctly and adheres to the length restrictions (1 to 8 characters).
    2. Modify Namespace: If the namespace is too long or empty, modify it to ensure it meets the criteria. For example, if your current namespace is "MyLongNamespace", you could shorten it to "MyNS" or "NS1".
    3. Update Configuration: After making changes to the namespace, ensure that you update any relevant configurations or settings in the DMC to reflect the new namespace.
    4. Test the Changes: After making the necessary adjustments, re-run the process that triggered the error to confirm that the issue has been resolved.

    Related Information:

    • Namespace in SAP: In SAP, a namespace is often used to define a unique identifier for objects, programs, or configurations. It helps in avoiding naming conflicts.
    • Data Migration Cockpit (DMC): DMC is a tool used for data migration in SAP systems, allowing users to transfer data from legacy systems to SAP S/4HANA or other SAP solutions.
    • SAP Notes and Documentation: If the issue persists, consider checking SAP Notes or the official SAP documentation for any updates or additional troubleshooting steps related to this error message.

    If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP Basis or technical team for further assistance.

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