How To Fix OQ_C034 - Please enter a unit of measure


SAP Error Message - Details

  • Message type: E = Error

  • Message class: OQ_C - IS-Oil SSR : Message pool Fuels

  • Message number: 034

  • Message text: Please enter a unit of measure

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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 OQ_C034 - Please enter a unit of measure ?

    The SAP error message OQ_C034, which states "Please enter a unit of measure," typically occurs in the context of material management or inventory management processes. This error indicates that a required unit of measure (UoM) has not been specified for a particular transaction or entry.

    Cause:

    1. Missing Unit of Measure: The most common cause is that the user has not entered a unit of measure in a field where it is required.
    2. Configuration Issues: There may be issues with the configuration of material master data, where the unit of measure is not properly defined.
    3. Data Entry Errors: Users may inadvertently skip the unit of measure field or enter an invalid value.
    4. Transaction Type: Certain transactions may require a unit of measure that is not applicable or not set up correctly in the system.

    Solution:

    1. Enter a Unit of Measure: Ensure that you enter a valid unit of measure in the required field. This could be a standard unit like "EA" (each), "KG" (kilogram), "L" (liter), etc.
    2. Check Material Master Data: Verify that the material master data is correctly set up with the appropriate units of measure. You can do this by:
      • Navigating to the material master (transaction code MM03).
      • Checking the "Basic Data" and "Purchasing" views for the correct UoM settings.
    3. Review Transaction Settings: If the error occurs during a specific transaction, review the transaction settings to ensure that the unit of measure is required and correctly configured.
    4. Consult Documentation: If you are unsure about the correct unit of measure to use, consult your organization's documentation or guidelines regarding material handling and inventory management.
    5. User Training: Ensure that users are trained on the importance of entering a unit of measure and how to do so correctly.

    Related Information:

    • Unit of Measure Types: Familiarize yourself with the different types of units of measure in SAP, such as base unit, alternative units, and sales units.
    • Configuration Settings: If you have access, check the configuration settings in SPRO (SAP Project Reference Object) under Logistics > Material Management > Basic Settings > Units of Measure.
    • SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to unit of measure errors.
    • Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) for managing material master data.

    If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant for further assistance.

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