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How To Fix WS799 - Item category & is not valid.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WS - Supplier Billing Document

  • Message number: 799

  • Message text: Item category & is not valid.

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message WS799 - Item category & is not valid. ?

    SAP Error Message:
    WS799 - Item category & is not valid.


    Cause:

    This error occurs when the item category assigned to a sales document item is not valid for the combination of sales document type, item category group, and other relevant master data settings. Essentially, SAP cannot find a valid item category determination for the item in the sales document.

    Common reasons include:

    • The item category is not maintained or assigned in the item category determination procedure for the sales document type and item category group.
    • The material master or sales document data is inconsistent or missing required fields.
    • Customizing settings for item category determination are incomplete or incorrect.
    • The sales document type or item category group is not correctly maintained or linked.

    Solution:

    1. Check Item Category Determination Configuration:

      • Go to SPRO ? Sales and Distribution ? Sales ? Sales Documents ? Sales Document Item ? Define Item Categories.
      • Verify the item category determination procedure for the sales document type and item category group.
      • Ensure the item category in question is assigned and valid for the combination of sales document type, item category group, and other criteria (e.g., higher-level item category, schedule line category).
    2. Verify Material Master Data:

      • Check the material master (MM03) for the item category group in the sales: sales org. 2 view.
      • Ensure the material is correctly maintained and relevant sales views are complete.
    3. Check Sales Document Type:

      • Confirm that the sales document type is correctly maintained and supports the item category.
    4. Review Customizing for Item Category Group:

      • Ensure the item category group assigned to the material is correct and consistent with the sales document type.
    5. Test with Different Item Category:

      • Try using a different valid item category to isolate the problem.
    6. Debugging / Logs:

      • If the above steps do not resolve the issue, debugging the item category determination logic (function module or user exit) may be necessary.

    Related Information:

    • Transaction Codes:

      • VA01 / VA02 / VA03 (Create/Change/Display Sales Order)
      • SPRO (Customizing)
      • MM03 (Display Material Master)
    • SAP Notes:

      • Check SAP Notes related to item category determination issues for your SAP version.
    • Item Category Determination Logic:

      • Item category is determined based on sales document type, item category group (from material master), higher-level item category (if applicable), and schedule line category.
    • Common SAP Tables:

      • TVTA (Sales Document Types)
      • T184 (Item Categories)
      • T184I (Item Category Determination)
      • MARC (Plant Data for Material)
      • MVKE (Sales Data for Material)

    Summary:
    The WS799 error indicates a mismatch or missing configuration in item category determination. Review and correct the item category determination settings in customizing, verify material master data, and ensure consistency between sales document type and item category group.

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