How To Fix UMC066 - Unit or currency not defined uniquely


UMC066 - Overview

  • Message type: E = Error

  • Message class: UMC - General Messages

  • Message number: 066

  • Message text: Unit or currency not defined uniquely

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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.



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Smart SAP Assistant

  • What is the cause and solution for SAP error message UMC066 - Unit or currency not defined uniquely ?
    The SAP error message UMC066 ("Unit or currency not defined uniquely") typically occurs when there is ambiguity in the unit of measure or currency being used in a transaction or configuration. This can happen in various contexts, such as when creating or processing purchase orders, sales orders, or other documents that involve units of measure or currencies.
    
    Cause: Ambiguous Configuration: The system may have multiple entries for the same unit of measure or currency, leading to confusion about which one to use. Missing Definitions: The unit of measure or currency may not be defined in the system, or it may not be properly linked to the relevant master data (like material master, vendor master, etc.). Incorrect Data Entry: Users may have entered a unit of measure or currency incorrectly, leading to a mismatch with the expected values in the system.
    Solution: Check Configuration: Go to the relevant configuration settings in SAP (e.g., transaction codes like OME1 for

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