How To Fix KN470 - Comparison values may not be used in costing runs

SAP Error Message - Details

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 470

• Message text: Comparison values may not be used in costing runs

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KN470 - Comparison values may not be used in costing runs ?

  The SAP error message KN470, which states "Comparison values may not be used in costing runs," typically occurs during the costing process in SAP, particularly when dealing with material master data or cost estimates. This error indicates that there are issues with the configuration or data that prevent the costing run from proceeding.
  Cause:
  
  Incorrect Material Master Data: The material master may have been set up incorrectly, particularly in the accounting or costing views. This can include incorrect valuation classes or missing data.
  Costing Variant Issues: The costing variant used may not be configured correctly to handle the specific materials or scenarios being processed.
  Comparison Values: The error specifically mentions "comparison values," which may refer to the use of certain fields or values that are not allowed in the context of the costing run.
  Missing or Incomplete Data: Required fields in the material master or costing data may be missing or incomplete, leading to this error.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and review the accounting and costing views.
  Ensure that all required fields are filled out correctly and that there are no inconsistencies.
  
  
  
  Review Costing Variant:
  
  Check the configuration of the costing variant (transaction code OKKN) to ensure it is set up correctly for the materials being processed.
  Make sure that the costing variant allows for the types of materials and scenarios you are trying to cost.
  
  
  
  Validate Comparison Values:
  
  Identify any comparison values being used in the costing run and ensure they are valid for the context. This may involve checking the settings in the costing variant or the material master.
  
  
  
  Run Consistency Checks:
  
  Use transaction CKMLCP (for actual costing) or CK11N (for cost estimates) to run consistency checks on the materials and costing data.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the KN470 error for any specific guidance or updates that may apply to your version of SAP.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, especially if this is a recurring issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM03: Display Material Master
  CK11N: Create Cost Estimate
  CKMLCP: Actual Costing/Material Ledger
  OKKN: Costing Variants
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  
  By following these steps, you should be able to identify and resolve the underlying cause of the KN470 error in your SAP system.