How To Fix CNV_DMC_SIN149 - Unit of Measure &1 already exists as Base Unit of Measure

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 149

• Message text: Unit of Measure &1 already exists as Base Unit of Measure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN149 - Unit of Measure &1 already exists as Base Unit of Measure ?

  The SAP error message CNV_DMC_SIN149 indicates that there is a conflict with the unit of measure (UoM) in the system. Specifically, it means that the unit of measure you are trying to create or modify already exists as a base unit of measure in the system. This error typically arises during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  
  Duplicate UoM: The unit of measure you are trying to create or import already exists in the system as a base unit of measure.
  Data Migration Issues: During data migration, if the source data contains units of measure that conflict with existing ones in the target system, this error can occur.
  Configuration Errors: Incorrect configuration or setup in the unit of measure settings can lead to this error.
  
  Solution:
  
  
  Check Existing Units of Measure:
  
  Go to the transaction code CUNI (Unit of Measure Maintenance) in SAP.
  Search for the unit of measure that is causing the error to see if it already exists as a base unit of measure.
  
  
  
  Modify or Delete Existing UoM:
  
  If the unit of measure already exists and is not needed, consider deleting it or modifying it if it is not being used in any active transactions.
  If it is in use, you may need to choose a different unit of measure for your data migration.
  
  
  
  Adjust Data Migration Files:
  
  If you are using a data migration tool, check the source data files for duplicates or conflicts with existing units of measure.
  Ensure that the units of measure in your migration files do not conflict with those already defined in the target system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to unit of measure handling during data migration for any specific guidelines or best practices.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Unit of Measure (UoM): In SAP, a unit of measure is a standard quantity used to measure goods. It can be a base unit (like pieces, kilograms) or a derived unit (like boxes, pallets).
  Data Migration Cockpit: A tool used for migrating data into SAP systems, which can help streamline the process but may encounter issues like this if data is not properly prepared.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CUNI for unit of measure maintenance and SE11 for data dictionary to check the definitions of UoM.
  
  By following these steps, you should be able to resolve the CNV_DMC_SIN149 error and successfully manage your units of measure in SAP.