How To Fix /ISDFPS/ME_MM_MSG021 - Unit of measure &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/ME_MM_MSG -

• Message number: 021

• Message text: Unit of measure &1 does not exist

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/ME_MM_MSG021 - Unit of measure &1 does not exist ?

  The SAP error message /ISDFPS/ME_MM_MSG021 Unit of measure &1 does not exist typically indicates that the system is unable to recognize the specified unit of measure (UoM) in the context of a transaction or operation you are trying to perform. This error can occur in various modules, particularly in materials management (MM) or related areas.
  Cause:
  
  Non-Existent UoM: The unit of measure you are trying to use has not been defined in the system.
  Incorrect UoM: The UoM may be misspelled or incorrectly formatted.
  UoM Not Assigned: The UoM may not be assigned to the material or product you are working with.
  Configuration Issues: There may be issues with the configuration of UoMs in the system.
  
  Solution:
  
  
  Check UoM Definition:
  
  Go to the transaction code CUNI (Unit of Measure) to check if the UoM exists in the system.
  If it does not exist, you will need to create it.
  
  
  
  Create UoM:
  
  If the UoM is missing, you can create it by using the transaction code CUNI and following the steps to define a new unit of measure.
  
  
  
  Verify Material Master:
  
  Check the material master record for the specific material you are working with (transaction code MM03).
  Ensure that the UoM is correctly assigned in the material master data.
  
  
  
  Check UoM Conversion:
  
  If you are using a UoM conversion, ensure that the conversion factors are correctly defined in the material master.
  
  
  
  Review Configuration:
  
  If you have access to configuration settings, review the settings related to units of measure in the customizing settings (transaction code SPRO).
  Ensure that the UoM is properly configured in the relevant areas.
  
  
  
  Consult Documentation:
  
  If you are unsure about the UoM or its usage, refer to SAP documentation or consult with your SAP support team for guidance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CUNI: Manage Units of Measure
  MM03: Display Material Master
  SPRO: Customizing settings
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to UoMs.
  User Roles: Ensure that you have the necessary permissions to create or modify UoMs in the system.
  
  By following these steps, you should be able to resolve the error message and continue with your transaction. If the issue persists, it may be beneficial to consult with your SAP support team for further assistance.