How To Fix MM262 - The conversion type & does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 262

• Message text: The conversion type & does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM262 - The conversion type & does not exist ?

  The SAP error message MM262, which states "The conversion type & does not exist," typically occurs in the context of material management, particularly when dealing with unit of measure conversions. This error indicates that the system is unable to find a specified conversion type for the units involved in a transaction or configuration.
  Cause:
  
  Missing Conversion Type: The specified conversion type does not exist in the system. This could be due to incorrect configuration or a missing entry in the relevant tables.
  Incorrect Unit of Measure: The unit of measure being used may not be correctly defined or may not have a corresponding conversion type.
  Configuration Issues: There may be issues in the configuration of the material master or the unit of measure settings.
  
  Solution:
  
  
  Check Conversion Types:
  
  Go to the transaction code OMN3 (or navigate through the menu: Logistics > Material Management > Basic Settings > Units of Measure > Define Conversion Factors).
  Verify if the conversion type you are trying to use is defined. If it is missing, you may need to create it.
  
  
  
  Define Units of Measure:
  
  Ensure that the units of measure involved in the transaction are correctly defined in the system. You can check this in the transaction code CUNI (or through the menu: Logistics > General > Master Data > Units of Measure > Define Units of Measure).
  Make sure that the units of measure have the necessary conversion factors set up.
  
  
  
  Material Master Data:
  
  Check the material master data for the material in question. Use transaction code MM03 to view the material master and ensure that the units of measure and conversion factors are correctly maintained.
  
  
  
  Consult Documentation:
  
  If you are unsure about the configuration, refer to SAP documentation or consult with your SAP Basis or MM consultant for guidance on how to properly set up conversion types and units of measure.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  OMN3: Define Conversion Factors
  CUNI: Define Units of Measure
  MM03: Display Material Master
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Roles: Ensure that you have the necessary authorizations to make changes to the configuration settings.
  
  By following these steps, you should be able to resolve the MM262 error and ensure that the necessary conversion types are correctly defined in your SAP system.