How To Fix ME300 - *** Conversion of units of measurement ***

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 300

• Message text: *** Conversion of units of measurement ***

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ME300 - *** Conversion of units of measurement *** ?

  The SAP error message ME300, which indicates a problem with the "Conversion of units of measurement," typically arises when there is an issue with the unit of measure (UoM) conversion in the system. This can occur in various scenarios, such as during the creation of purchase orders, goods receipts, or when processing inventory transactions.
  Causes of ME300 Error
  
  
  Incorrect Unit of Measure Configuration: The units of measure may not be properly defined in the system, or there may be missing conversion factors between different units.
  
  
  Missing or Incorrect Material Master Data: The material master may not have the correct UoM settings, or the UoM used in the transaction may not be valid for the material.
  
  
  Inconsistent UoM in Transaction: The UoM used in the transaction may not match the UoM defined in the material master or the purchasing info record.
  
  
  Unit of Measure Group Issues: The unit of measure group assigned to the material may not be set up correctly, leading to conversion issues.
  
  
  Custom Code or User Exits: If there are custom developments or user exits that manipulate UoM, they may introduce errors.
  
  
  Solutions to ME300 Error
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and verify the UoM settings.
  Ensure that the base unit of measure and any alternative units of measure are correctly defined.
  
  
  
  Review UoM Configuration:
  
  Check the configuration of units of measure in the SAP system (transaction code OME1).
  Ensure that the conversion factors between different units of measure are correctly defined.
  
  
  
  Validate Purchase Info Records:
  
  If applicable, check the purchasing info records (transaction code ME13) to ensure that the UoM used in the purchase order matches the UoM defined in the info record.
  
  
  
  Check for Inconsistencies:
  
  Ensure that the UoM used in the transaction is consistent with the UoM defined in the material master and any related documents.
  
  
  
  Consult with Technical Team:
  
  If there are custom developments or user exits that may affect UoM conversion, consult with your technical team to review the code for potential issues.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error is resolved and that UoM conversions are functioning as expected.
  
  
  
  Related Information
  
  Unit of Measure Types: Understand the different types of units of measure (e.g., base unit, alternative units) and how they interact in transactions.
  SAP Documentation: Refer to SAP Help documentation for detailed information on unit of measure configuration and troubleshooting.
  Transaction Codes:
  
  MM03: Display Material Master
  OME1: Maintain Units of Measure
  ME13: Display Purchasing Info Record
  
  
  
  By following these steps and checking the relevant configurations, you should be able to resolve the ME300 error in SAP. If the issue persists, consider reaching out to SAP support for further assistance.