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How To Fix WT207 - Problem converting unit of measure &3 for customer &1, material &2


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WT - Retail: Replenishment

  • Message number: 207

  • Message text: Problem converting unit of measure &3 for customer &1, material &2

  • Show details Hide details
  • What causes this issue?

    A follow-on document was created for customer &v1& and material &v2&.
    When the system rounded off the quantity, a unit of measure was to be
    used that was unknown to the system. The stock could therefore not be
    increased by this amount.

    System Response

    The stock of material &v2& at customer &v1& was not changed.

    How to fix this error?

    Check if a follow-on document was created for customer &v1& and
    material &v2& and increase the stock manually by the quantity
    ordered/delivered.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message WT207 - Problem converting unit of measure &3 for customer &1, material &2 ?

    Certainly! Here's a detailed explanation for the SAP error message:


    SAP Error Message:

    WT207 - Problem converting unit of measure &3 for customer &1, material &2


    Meaning / Cause:

    This error occurs during the processing of delivery or shipment documents when SAP tries to convert quantities between different units of measure (UoM) but fails. Specifically, the system cannot convert the unit of measure specified (e.g., sales unit, delivery unit) for the given material and customer.

    Common causes include:

    • Missing or incorrect unit of measure conversion factors in the material master or customer-material info record.
    • The unit of measure used in the document is not defined or maintained in the system.
    • Inconsistent or missing entries in the Unit of Measure (UoM) conversion tables.
    • The unit of measure is not allowed or not maintained for the material or customer.
    • The system tries to convert between incompatible units (e.g., weight to pieces without a conversion factor).

    Where it typically occurs:

    • During delivery creation or processing (VL01N, VL02N).
    • During shipment processing.
    • When creating or processing sales orders or billing documents involving unit conversions.
    • In Warehouse Management or Inventory Management when quantities are converted.

    Solution / How to fix:

    1. Check Unit of Measure settings:

      • Go to Material Master (MM03) ? Basic Data 1 tab.
      • Verify the Base Unit of Measure.
      • Check if the unit of measure used in the document is consistent with the base unit or if a conversion exists.
    2. Maintain Unit of Measure conversions:

      • Use transaction CUNI (Units of Measure) to check if the unit of measure &3 exists and is valid.
      • Ensure that the conversion factors between the base unit and the unit &3 are maintained correctly.
    3. Check Customer-Material Info Record:

      • Use transaction VD52 or VD53 to check if the customer-material info record exists and if the sales unit or delivery unit is maintained properly.
    4. Check Sales Document and Delivery Document:

      • Verify the units of measure used in the sales order and delivery.
      • Make sure the units are consistent and conversions are possible.
    5. Maintain Conversion Factors in Material Master:

      • In MM02, under Sales: Sales Org. 1 or Sales: General/Plant, check the sales unit and delivery unit.
      • Ensure that the delivery unit is a multiple of the base unit or that conversion factors are maintained.
    6. Check for Customizing settings:

      • In SPRO, check under Logistics Execution ? Shipping ? Basic Shipping Functions ? Units of Measure for any relevant settings.
    7. If the unit of measure is new or custom:

      • Make sure it is properly defined in the system and linked to the base unit with correct conversion factors.

    Additional Information:

    • The placeholders in the message:

      • &1 = Customer number
      • &2 = Material number
      • &3 = Unit of measure causing the problem
    • This error is often related to master data inconsistencies rather than transactional errors.

    • Sometimes, the error can be triggered if the system tries to convert between units that are not compatible (e.g., volume to weight) without a proper conversion factor.

    • If the problem persists after checking master data, consider debugging or checking OSS notes related to unit of measure conversion issues.


    Summary:

    Aspect Details
    Error Message WT207 - Problem converting unit of measure &3 for customer &1, material &2
    Cause Missing or incorrect UoM conversion factors or inconsistent master data
    Solution Check and maintain UoM conversions in material master, customer-material info record, and units of measure tables
    Transactions to check MM03, MM02, VD52/VD53, CUNI, VL01N/VL02N
    Notes Ensure units are compatible and conversion factors exist

    If you need help with specific transaction steps or further troubleshooting, feel free to ask!

    • Do you have any question about this error?


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