How To Fix WG347 - Error converting to base units of measure. Material &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 347

• Message text: Error converting to base units of measure. Material &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WG347 - Error converting to base units of measure. Material & ?

  SAP Error Message:
  
  WG347 - Error converting to base units of measure. Material &
  
  Cause:
  This error occurs when SAP is unable to convert a quantity from one unit of measure (UoM) to the base unit of measure defined for the material. The system tries to perform a conversion using the conversion factors maintained in the material master, but if these factors are missing, incorrect, or inconsistent, the conversion fails and triggers this error.
  Common causes include:  
  
  Missing or incorrect unit of measure conversion factors in the material master (transaction MM02).  
  The unit of measure used in the transaction is not defined or linked properly to the base unit of measure.  
  The base unit of measure itself is not maintained or is inconsistent.  
  Data inconsistencies or master data errors in the material master related to units of measure.
  
  
  Solution:
  
  
  Check the Base Unit of Measure:  
  
  Go to transaction MM03 (Display Material) and verify the base unit of measure on the Basic Data 1 tab.  
  Ensure the base unit of measure is correctly maintained and consistent.
  
  
  
  Check Unit of Measure Conversions:  
  
  In MM02 (Change Material), navigate to the Additional Data ? Units of Measure tab.  
  Verify that the unit of measure you are trying to use in the transaction has a valid conversion factor to the base unit of measure.  
  If missing, add the required unit of measure and maintain the correct conversion factor.
  
  
  
  Maintain or Correct Conversion Factors:  
  
  Ensure the conversion factor is mathematically correct (e.g., 1 box = 10 pieces).  
  Avoid zero or negative values.
  
  
  
  Check Transaction Data:  
  
  Verify that the unit of measure entered in the transaction is valid and consistent with the material master data.
  
  
  
  Reprocess the Transaction:  
  
  After correcting the master data, retry the transaction.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:  
  
  MM02 (Change Material)  
  MM03 (Display Material)  
  MM01 (Create Material)  
  
  
  
  SAP Notes:  
  
  Check SAP Notes related to unit of measure conversion errors for your specific SAP version.  
  Sometimes, patches or support packages address known issues with unit conversions.
  
  
  
  Additional Tips:  
  
  Always maintain units of measure carefully to avoid inconsistencies.  
  Use standard units of measure defined in SAP to minimize errors.  
  If custom units are used, ensure all conversions are properly maintained.
  
  
  
  
  Summary:
  
  The WG347 error is caused by missing or incorrect unit of measure conversion factors in the material master. The solution is to verify and maintain the base unit of measure and the conversion factors for all relevant units of measure in the material master data.