How To Fix PPERES020 - Unit of measurement &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: PPERES - Messages for Resource Nodes

• Message number: 020

• Message text: Unit of measurement &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 PPERES020 - Unit of measurement &1 does not exist ?

  The SAP error message PPERES020 indicates that the unit of measurement (UoM) specified in a transaction or configuration does not exist in the system. This error typically arises in contexts where units of measurement are critical, such as in material management, production planning, or inventory management.
  Cause:
  
  Non-Existent UoM: The specified unit of measurement has not been defined in the system.
  Incorrect UoM Code: There may be a typo or incorrect code used for the unit of measurement.
  Missing Configuration: The unit of measurement may not be assigned to the relevant material or master data.
  Data Migration Issues: If data has been migrated from another system, the UoM may not have been properly transferred or defined in the new system.
  
  Solution:
  
  
  Check UoM Definition:
  
  Go to the transaction code CUNI (Unit of Measure) to check if the unit of measurement exists.
  If it does not exist, you can create it by using the same transaction.
  
  
  
  Verify UoM in Master Data:
  
  Check the material master data (transaction code MM03) to ensure that the UoM is correctly assigned to the material.
  If the UoM is missing, you may need to update the material master with the correct UoM.
  
  
  
  Correct the UoM in the Transaction:
  
  If you are entering the UoM manually, double-check for any typos or errors in the code.
  
  
  
  Review Configuration Settings:
  
  Ensure that the UoM is properly configured in the relevant settings, such as in the material type or plant settings.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct UoM to use, refer to your organization's documentation or consult with a colleague who is knowledgeable about the specific materials or processes.
  
  
  
  Check for Data Migration Issues:
  
  If this error occurred after a data migration, verify that all necessary UoMs were included in the migration process.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measurement (e.g., base unit, alternative unit) and how they are used in SAP.
  SAP Help Documentation: Refer to SAP's official documentation for more detailed information on units of measurement and related configuration.
  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.
  
  By following these steps, you should be able to resolve the PPERES020 error and ensure that the unit of measurement is correctly defined and utilized in your SAP system.