How To Fix MILL034 - No class reference found (Please enter a class)


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MILL - Messages in IS Mill Products

  • Message number: 034

  • Message text: No class reference found (Please enter a class)

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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 MILL034 - No class reference found (Please enter a class) ?

    The SAP error message MILL034: No class reference found (Please enter a class) typically occurs in the context of the SAP system when dealing with classification data, particularly in the Materials Management (MM) or Production Planning (PP) modules. This error indicates that the system is expecting a class reference for a material or object, but none has been provided.

    Cause:

    1. Missing Class Assignment: The material or object you are trying to work with does not have a class assigned to it. In SAP, classes are used to categorize materials and objects based on their characteristics.
    2. Incorrect Configuration: The classification system may not be properly configured, or the class you are trying to reference does not exist in the system.
    3. User Input Error: The user may have forgotten to enter a class reference when creating or modifying a material or object.

    Solution:

    1. Check Class Assignment:

      • Navigate to the classification view of the material or object in question.
      • Ensure that a valid class is assigned. You can do this by going to the material master record and checking the classification data.
      • If no class is assigned, you will need to assign an appropriate class.
    2. Create or Modify Class:

      • If the required class does not exist, you may need to create a new class in the classification system.
      • Use transaction code CL02 to create or modify classes.
    3. Input Class Reference:

      • If you are entering data manually, ensure that you input the class reference correctly in the relevant field.
    4. Check Authorization:

      • Ensure that you have the necessary authorizations to view and modify classification data.
    5. Consult Documentation:

      • Refer to SAP documentation or help resources for guidance on classification and class assignment.

    Related Information:

    • Transaction Codes:

      • CL01: Create Class
      • CL02: Change Class
      • CL03: Display Class
      • MM01: Create Material
      • MM02: Change Material
      • MM03: Display Material
    • Classification System: Understand how the classification system works in SAP, including how to create classes and assign characteristics.

    • SAP Notes: Check SAP Notes for any known issues or patches related to this error message.

    • Training and Documentation: Consider training sessions or documentation on SAP classification if this is a recurring issue.

    By following these steps, you should be able to resolve the MILL034 error and ensure that your materials or objects are properly classified in the SAP system.

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