How To Fix KO313 - Overhead key could not be determined; check costing variant &

SAP Error Message - Details

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 313

• Message text: Overhead key could not be determined; check costing variant &

What causes this issue?

Using the valuation variant, the system has determined a costing sheet
from cost variant &V1&. If this costing sheet needs an overhead key,
then the overhead group in the costing view of the material master must
be maintained if you want to calculate overhead for this master record.
The overhead group should not be maintained if the costing sheet is
intended to work without an overhead key.
If you have changed either the overhead key or the costing sheet
manually it could be that the overhead key is no longer suitable for
the costing sheet entered.

How to fix this error?

Check your entries for the valuation variant in customizing.
<DS:TRAN.OKY8>Proceed</>
Check the material master by selecting the costing view.
<DS:TRAN.MM02>Proceed</>
Check the assignment of overhead group to overhead key.
<DS:TRAN.OKZ2>Proceed</>
Select an overhead key which is suitable for the costing sheet entered.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO313 - Overhead key could not be determined; check costing variant & ?

  The SAP error message KO313 indicates that the system is unable to determine the overhead key for a cost object, typically during the process of cost calculation in controlling (CO) or product costing. This error can arise due to several reasons related to the configuration of costing variants, overhead keys, or master data.
  Causes of Error KO313
  
  
  Missing Overhead Key: The overhead key may not be defined in the system for the specific costing variant being used.
  
  
  Incorrect Costing Variant: The costing variant may not be set up correctly or may not be assigned to the relevant cost object.
  
  
  Master Data Issues: The master data for the cost object (such as cost centers, internal orders, or production orders) may be incomplete or incorrectly configured.
  
  
  Overhead Calculation Settings: The settings for overhead calculation in the costing variant may not be properly configured, leading to the inability to determine the overhead key.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the overhead key or related configuration.
  
  
  Solutions to Error KO313
  
  
  Check Costing Variant Configuration:
  
  Go to the configuration settings for the costing variant (Transaction code OKKN).
  Ensure that the overhead key is defined and correctly assigned to the costing variant.
  
  
  
  Review Overhead Key Settings:
  
  Check the overhead key settings in the configuration (Transaction code OKTZ).
  Ensure that the overhead key is valid and properly configured for the relevant cost elements.
  
  
  
  Verify Master Data:
  
  Check the master data for the cost object (cost center, internal order, etc.) to ensure that all necessary fields are filled out correctly.
  Ensure that the cost object is assigned to the correct controlling area.
  
  
  
  Test with Different Costing Variants:
  
  If possible, try using a different costing variant to see if the error persists. This can help identify if the issue is specific to a particular variant.
  
  
  
  Check User Authorizations:
  
  Ensure that the user has the necessary authorizations to access the overhead key and perform cost calculations.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on configuring overhead keys and costing variants.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  OKKN: Configuration of costing variants.
  OKTZ: Configuration of overhead keys.
  KKS1: Costing run for product costing.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  
  
  Testing: After making changes, perform a test run to ensure that the error is resolved and that cost calculations are functioning as expected.
  
  
  By following these steps, you should be able to identify the root cause of the KO313 error and implement the necessary solutions to resolve it.