How To Fix MH420 - Error in Classification of Material Group &1 of Material &2.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MH - Maintain Material Master Data (Retail)

  • Message number: 420

  • Message text: Error in Classification of Material Group &1 of Material &2.

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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.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    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.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


Smart SAP Assistant

  • What is the cause and solution for SAP error message MH420 - Error in Classification of Material Group &1 of Material &2. ?

    The SAP error message MH420, which states "Error in Classification of Material Group &1 of Material &2," typically occurs during the classification process of materials in SAP. This error indicates that there is an issue with the classification of a specific material group associated with a material.

    Causes:

    1. Missing Classification Data: The material group may not have the necessary classification data defined in the system.
    2. Incorrect Material Group: The material group assigned to the material may not be valid or may not exist in the system.
    3. Configuration Issues: There may be configuration issues in the classification system or the material master data.
    4. Authorization Issues: The user may not have the necessary authorizations to access or modify the classification data.
    5. Inconsistent Data: There may be inconsistencies in the data related to the material or its classification.

    Solutions:

    1. Check Material Group: Verify that the material group specified in the error message exists and is correctly defined in the system.
    2. Review Classification Data: Ensure that the classification data for the material group is complete and correctly configured.
    3. Update Material Master: If necessary, update the material master data to ensure that it is consistent and complete.
    4. Authorization Check: Ensure that the user has the necessary authorizations to perform classification tasks.
    5. Consult Configuration: If the issue persists, consult with your SAP configuration team to review the classification settings and ensure they are correctly set up.
    6. Transaction Codes: Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to check the classification data for the material group.

    Related Information:

    • SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
    • Documentation: Refer to SAP documentation on material classification and material master data management for more detailed guidance.
    • Support: If the issue cannot be resolved internally, consider reaching out to SAP support for assistance.

    By following these steps, you should be able to identify and resolve the underlying cause of the MH420 error in SAP.

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