How To Fix /SCWM/RF_EN602 - &1 is not preferred UoM (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/RF_EN -

• Message number: 602

• Message text: &1 is not preferred UoM (&2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/RF_EN602 - &1 is not preferred UoM (&2) ?

  The SAP error message /SCWM/RF_EN602 &1 is not preferred UoM (&2) typically occurs in the context of SAP Extended Warehouse Management (EWM) when dealing with unit of measure (UoM) conversions or when trying to process items that are not in the preferred unit of measure for a specific operation.
  Cause:
  
  Non-Preferred UoM: The item you are trying to process is not in the preferred unit of measure for the operation you are performing. Each material in SAP can have multiple units of measure, but only one is designated as the preferred UoM for certain transactions.
  Configuration Issues: There may be configuration issues in the material master data where the preferred UoM is not set correctly.
  Warehouse Process: The warehouse process you are trying to execute may require the use of a specific UoM that is different from what you are currently using.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the UoM settings.
  Ensure that the preferred UoM is correctly set for the material in question.
  
  
  
  Use Preferred UoM:
  
  When processing the item, ensure that you are using the preferred UoM. You may need to convert the quantity to the preferred UoM before proceeding with the transaction.
  
  
  
  Adjust Warehouse Process:
  
  Review the warehouse process you are executing to ensure it aligns with the UoM requirements. If necessary, adjust the process to accommodate the preferred UoM.
  
  
  
  Configuration Review:
  
  If the issue persists, review the configuration settings in the EWM system related to UoM and ensure that they are set up correctly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed information on handling UoM issues in EWM.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, UoM is a critical aspect of inventory management and logistics. Each material can have multiple UoMs, including base UoM, sales UoM, and purchase UoM.
  Material Master: The material master is a central repository of information about materials in SAP. It contains data related to purchasing, sales, inventory management, and more.
  EWM Configuration: Proper configuration in EWM is essential for ensuring that warehouse operations run smoothly. This includes settings for UoM, storage types, and warehouse processes.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP EWM for further assistance.