How To Fix WG108 - Unit of measure & cannot be converted to base unit &. Error &

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 108

• Message text: Unit of measure & cannot be converted to base unit &. Error &

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 WG108 - Unit of measure & cannot be converted to base unit &. Error & ?

  The SAP error message:
  WG108 Unit of measure & cannot be converted to base unit &. Error &
  typically occurs in the context of materials management, inventory, or production when the system tries to convert a quantity from one unit of measure (UoM) to the base unit of measure defined for a material, but the conversion factor or method is missing or incorrect.
  
  Cause
  
  The unit of measure (UoM) specified in a transaction (e.g., goods receipt, goods issue, production order, purchase order) does not have a defined conversion to the base unit of measure for the material.
  The system cannot find a valid conversion factor between the entered UoM and the base UoM.
  The UoM might not be maintained in the material master or in the unit of measure conversion tables.
  Sometimes, the error can also occur if the UoM is not valid for the material or if the UoM is incorrectly entered.
  
  
  Explanation of the placeholders in the message:
  
  The first & is the unit of measure entered.
  The second & is the base unit of measure for the material.
  The third & is the error code or additional error information.
  
  
  Solution
  
  
  Check the Material Master:
  
  Go to transaction MM03 (Display Material).
  Check the Basic Data 1 view for the base unit of measure.
  Check the Additional Data or Units of Measure tab to see if the entered UoM is maintained.
  
  
  
  Maintain Unit of Measure Conversion:
  
  Use transaction CUNI (Units of Measure) to check if the UoM exists and is valid.
  Use transaction CUNI or MM02 to maintain conversion factors between the entered UoM and the base UoM.
  Alternatively, in the material master (MM02), under the Units of Measure tab, maintain the alternative units and their conversion factors to the base unit.
  
  
  
  Check the Transaction Data:
  
  Verify that the UoM entered in the transaction is correct and valid for the material.
  Correct the UoM if it was entered incorrectly.
  
  
  
  Check Customizing Settings:
  
  In some cases, the error can be due to missing or incorrect configuration in the system's unit of measure settings.
  Use transaction SPRO ? Logistics General ? Units of Measure ? Check Units of Measure and Conversion Factors.
  
  
  
  If the UoM is new:
  
  Define the new unit of measure in the system (transaction CUNI).
  Maintain conversion factors to the base unit.
  
  
  
  
  Additional Information
  
  The base unit of measure is the unit in which stock quantities are managed for the material.
  All other units of measure must have a defined conversion factor to the base unit.
  The conversion factor is usually a numeric value indicating how many base units correspond to one unit of the alternative UoM.
  For example, if the base unit is "PC" (pieces) and the entered UoM is "BOX", the system needs to know how many pieces are in one box.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WG108 Unit of measure & cannot be converted to base unit &. Error &
  
  
  Cause
  Missing or incorrect conversion factor between entered UoM and base UoM
  
  
  Solution
  Maintain UoM conversion in material master or unit of measure tables (CUNI, MM02)
  
  
  Check
  Material master UoM settings, transaction UoM input, customizing for UoM conversions
  
  
  Transaction Codes
  MM03, MM02, CUNI, SPRO
  
  
  
  
  If you provide the exact UoM and material number, I can help you with more specific steps.