How To Fix CNV_DMC_MD_EXTRACTOR018 - Node (structure) &1 contains a field with no name


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CNV_DMC_MD_EXTRACTOR - meta data extractor message class

  • Message number: 018

  • Message text: Node (structure) &1 contains a field with no name

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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 CNV_DMC_MD_EXTRACTOR018 - Node (structure) &1 contains a field with no name ?

    The SAP error message CNV_DMC_MD_EXTRACTOR018 indicates that there is a problem with a data structure in the context of a data migration or extraction process. Specifically, the error states that a node (or structure) contains a field that does not have a name, which is not allowed in SAP data structures.

    Cause:

    1. Missing Field Name: The most direct cause of this error is that one of the fields in the specified node (structure) is defined without a name. This can happen due to incorrect configuration or data modeling.
    2. Data Model Issues: If you are using a custom data model or have modified standard structures, it is possible that a field was inadvertently left unnamed.
    3. Data Extraction Configuration: If you are using a data extraction tool or process, the configuration might be incorrect, leading to the generation of a structure with unnamed fields.

    Solution:

    1. Check the Data Structure: Review the definition of the node (structure) mentioned in the error message. Ensure that all fields within the structure have valid names.
    2. Modify the Data Model: If you find any unnamed fields, assign appropriate names to them. This may involve going into the data model or structure definition in the SAP system and making the necessary changes.
    3. Review Extraction Configuration: If the error arises during a data extraction process, check the configuration settings to ensure that all fields are correctly defined and named.
    4. Testing: After making the necessary changes, test the extraction or migration process again to ensure that the error has been resolved.

    Related Information:

    • Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect and modify the data structures.
    • SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on data extraction and migration processes.
    • Documentation: Review the documentation for the data migration cockpit (DMC) or any specific tools you are using for data extraction to ensure compliance with naming conventions and structure definitions.

    If the issue persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data migration and extraction processes.

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