How To Fix VCH_HL_EXT_BOM009 - Error during unit conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: VCH_HL_EXT_BOM - Exception messages for BOM Explosion

• Message number: 009

• Message text: Error during unit conversion

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message VCH_HL_EXT_BOM009 - Error during unit conversion ?

  The SAP error message VCH_HL_EXT_BOM009 typically indicates an issue related to unit conversion during the processing of a Bill of Materials (BOM) or related transactions. This error can occur in various contexts, such as when trying to create or modify a BOM, or during production planning and execution.
  Cause:
  The error can arise due to several reasons, including:
  
  
  Incorrect Unit of Measure (UoM) Configuration: The units of measure defined for the materials in the BOM may not be compatible or correctly configured for conversion.
  
  
  Missing Conversion Factors: There may be missing or incorrect conversion factors between the units of measure used in the BOM.
  
  
  Data Inconsistencies: There could be inconsistencies in the master data for materials, such as incorrect UoM settings in the material master.
  
  
  Unit of Measure Group Issues: The unit of measure group assigned to the material may not include the necessary units for conversion.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might interfere with standard unit conversion processes.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and verify the unit of measure settings for the materials involved in the BOM.
  Ensure that the base unit of measure and alternative units of measure are correctly defined.
  
  
  
  Review BOM Configuration:
  
  Check the BOM (transaction code CS03) for the materials and ensure that the units of measure used are valid and correctly defined.
  
  
  
  Verify Conversion Factors:
  
  Ensure that the conversion factors between different units of measure are correctly maintained in the system. You can check this in the material master under the "Units of Measure" tab.
  
  
  
  Check Unit of Measure Groups:
  
  Verify that the unit of measure group assigned to the material includes all necessary units for conversion. You can check this in the configuration settings.
  
  
  
  Consult with Technical Team:
  
  If the issue persists, consult with your technical team to check for any custom code or enhancements that might be affecting the unit conversion process.
  
  
  
  SAP Notes and Support:
  
  Search for relevant SAP Notes in the SAP Support Portal that might address this specific error message. There may be patches or updates available that resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  MM03 - Display Material
  CS03 - Display BOM
  C223 - Maintain Unit of Measure Conversion
  
  
  SAP Documentation: Review SAP Help documentation related to BOM and unit of measure management for further insights.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the VCH_HL_EXT_BOM009 error in your SAP system.