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

KO313 - Overview

• 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