How To Fix MDG_DT_DATA_MODEL020 - Enter a valid data model for the hierarchy relationship or relationships


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MDG_DT_DATA_MODEL - Messages for the Configuration Workbench Model Access API

  • Message number: 020

  • Message text: Enter a valid data model for the hierarchy relationship or relationships

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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_DT_DATA_MODEL020 - Enter a valid data model for the hierarchy relationship or relationships ?

    The SAP error message MDG_DT_DATA_MODEL020 typically occurs in the context of Master Data Governance (MDG) when there is an issue with the data model configuration, particularly related to hierarchy relationships. This error indicates that the system expects a valid data model for the hierarchy relationship, but it has not been provided or is incorrect.

    Cause:

    1. Invalid Data Model: The data model specified for the hierarchy relationship is either not defined or is not valid in the context of the operation being performed.
    2. Missing Configuration: The hierarchy relationship may not be properly configured in the MDG settings.
    3. Incorrect Hierarchy Type: The hierarchy type being used may not match the expected type for the data model.
    4. Authorization Issues: There may be authorization issues preventing access to the required data model.

    Solution:

    1. Check Data Model Configuration:

      • Go to the MDG configuration settings and verify that the data model for the hierarchy relationship is correctly defined.
      • Ensure that the hierarchy relationship is linked to the correct data model.
    2. Define or Adjust Hierarchy Relationships:

      • If the hierarchy relationship is missing, you may need to create or adjust it in the MDG configuration.
      • Navigate to the relevant configuration area in the SAP MDG customizing (transaction code: MDGIMG) and ensure that the hierarchy relationships are set up correctly.
    3. Validate Hierarchy Type:

      • Ensure that the hierarchy type you are trying to use is compatible with the data model you are working with.
    4. Check Authorizations:

      • Ensure that the user has the necessary authorizations to access and modify the data model and hierarchy relationships.
    5. Consult Documentation:

      • Refer to the SAP Help Portal or relevant documentation for specific guidance on configuring hierarchy relationships in MDG.
    6. Testing:

      • After making the necessary changes, test the configuration by attempting to perform the operation again to see if the error persists.

    Related Information:

    • Transaction Codes: Familiarize yourself with relevant transaction codes such as MDGIMG for configuration and MDG_MAINTAIN for data maintenance.
    • SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may resolve the issue.
    • Community Forums: Engage with SAP community forums or support channels for additional help and shared experiences from other users who may have encountered the same issue.

    By following these steps, you should be able to identify and resolve the cause of the MDG_DT_DATA_MODEL020 error in your SAP system.

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