How To Fix BM304 - No technical unit of measurement defined for unit & in language &


SAP Error Message - Details

  • Message type: E = Error

  • Message class: BM - Development class BZME - units of measure

  • Message number: 304

  • Message text: No technical unit of measurement defined for unit & in language &

  • Show details Hide details
  • What causes this issue?

    No technical unit (6-character external representation) is maintained
    for unit of measurement &V1& in language &V2&.

    How to fix this error?

    INCLUDE NA_SYSADMIN1

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message BM304 - No technical unit of measurement defined for unit & in language & ?

    The SAP error message BM304 indicates that there is no technical unit of measurement defined for a specific unit in a particular language. This error typically arises in the context of material management or inventory management when the system is unable to find a corresponding technical unit of measurement for the unit specified in the transaction.

    Cause:

    1. Missing Configuration: The unit of measurement (UoM) you are trying to use has not been defined in the system.
    2. Incorrect Unit of Measurement: The unit of measurement may be incorrectly entered or does not exist in the system.
    3. Language-Specific Issues: The error may also arise if the unit of measurement is not defined in the language specified in the transaction.
    4. Master Data Issues: The material master data may not have been properly maintained, leading to missing UoM definitions.

    Solution:

    1. Check Unit of Measurement Configuration:

      • Go to the transaction code OMN3 (or CUNI) to check the configuration of units of measurement.
      • Ensure that the unit you are trying to use is defined in the system.
    2. Define Missing Units:

      • If the unit of measurement is missing, you can define it using transaction code CUNI.
      • Create a new entry for the unit of measurement and ensure it is linked to the appropriate technical unit.
    3. Check Material Master Data:

      • Use transaction code MM03 to view the material master data.
      • Ensure that the unit of measurement is correctly assigned to the material and that it is maintained in the relevant views.
    4. Language Settings:

      • Verify that the unit of measurement is defined in the language you are using. You can check this in the unit of measurement configuration.
    5. Consult Documentation:

      • If you are unsure about the correct units or configurations, refer to SAP documentation or consult with your SAP administrator.

    Related Information:

    • Transaction Codes:
      • CUNI: Maintain Units of Measure
      • MM03: Display Material Master
      • OMN3: Define Units of Measure
    • SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
    • User Roles: Ensure that you have the necessary permissions to make changes to unit of measurement configurations or material master data.

    By following these steps, you should be able to resolve the BM304 error and ensure that the necessary units of measurement are properly defined in your SAP system.

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