How To Fix CO077 - Target Un & cannot be converted into base Un &

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 077

• Message text: Target Un & cannot be converted into base Un &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CO077 - Target Un & cannot be converted into base Un & ?

  The SAP error message CO077, which states "Target Un & cannot be converted into base Un &," typically occurs in the context of controlling (CO) and production planning (PP) modules when there is an issue with unit of measure (UoM) conversions. This error indicates that the system is unable to convert a target unit of measure into a base unit of measure due to a configuration or data issue.
  Causes:
  
  Missing Conversion Factors: The conversion factors between the target unit of measure and the base unit of measure may not be defined in the system.
  Incorrect Unit of Measure Configuration: The units of measure may not be correctly configured in the material master or in the relevant settings.
  Inconsistent UoM Usage: The target unit of measure may not be compatible with the base unit of measure in the context of the operation being performed.
  Data Entry Errors: There may be errors in the data entry where the wrong units are being used.
  
  Solutions:
  
  
  Check Unit of Measure Configuration:
  
  Go to the material master (transaction code MM03) and check the units of measure defined for the material in question.
  Ensure that the base unit of measure is correctly set and that the target unit of measure has a valid conversion factor.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the material master or through the transaction code CUNI (Unit of Measure Conversion).
  Ensure that the conversion factors are accurate and reflect the correct relationship between the units.
  
  
  
  Review Material Master Data:
  
  Check if the material is set up correctly in terms of its units of measure. Ensure that the target unit of measure is allowed for the material type and that it is properly maintained.
  
  
  
  Check for Inconsistencies:
  
  Review the relevant configuration settings in the controlling area and ensure that there are no inconsistencies in the unit of measure settings.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on unit of measure issues related to your version of SAP.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that the unit of measure conversions are functioning as expected.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MM03 (Display Material Master)
  CUNI (Maintain Units of Measure)
  CO01 (Create Production Order)
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  
  User Forums: Consider visiting SAP community forums or user groups for additional insights and solutions from other users who may have encountered the same issue.
  
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the controlling or production planning modules.