How To Fix KO439 - No overhead keys defined for costing sheet &

SAP Error Message - Details

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 439

• Message text: No overhead keys defined for costing sheet &

What causes this issue?

You can enter only those surcharge keys for which an overhead
percentage or amount has been entered in the costing sheet. Costing
sheet &V1& does not contain an surcharge referring to a surcharge key.

System Response

No surcharge keys can be entered.

How to fix this error?

Maintain costing sheet &V1&.
<DS:TRAN.KZS2>Proceed</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO439 - No overhead keys defined for costing sheet & ?

  The SAP error message KO439, which states "No overhead keys defined for costing sheet &," typically occurs during the costing process in SAP, particularly when dealing with product costing or cost estimates. This error indicates that the system cannot find any overhead keys associated with the specified costing sheet, which is necessary for calculating overhead costs.
  Cause:
  
  Missing Overhead Keys: The primary cause of this error is that there are no overhead keys defined for the costing sheet you are trying to use. Overhead keys are essential for determining how overhead costs are allocated to cost objects.
  Incorrect Configuration: The costing sheet may not be properly configured in the system, or the overhead keys may not have been assigned to the costing sheet.
  Costing Sheet Not Assigned: The costing sheet might not be assigned to the material or cost object you are trying to cost.
  
  Solution:
  To resolve the KO439 error, you can follow these steps:
  
  
  Check Costing Sheet Configuration:
  
  Go to the transaction code OKTZ (Costing Sheet) in SAP.
  Verify that the costing sheet you are using is correctly configured and that it has the necessary overhead keys defined.
  
  
  
  Define Overhead Keys:
  
  If there are no overhead keys defined, you will need to create them. You can do this in the transaction code OKT3 (Define Overhead Keys).
  Ensure that the overhead keys are linked to the appropriate costing sheet.
  
  
  
  Assign Costing Sheet:
  
  Ensure that the costing sheet is assigned to the relevant material or cost object. You can check this in the material master (transaction code MM02) or in the cost object settings.
  
  
  
  Review Costing Variants:
  
  Check if the costing variant you are using is correctly set up to utilize the costing sheet and overhead keys.
  
  
  
  Test the Configuration:
  
  After making the necessary changes, try to run the costing process again to see if the error persists.
  
  
  
  Related Information:
  
  Costing Sheets: Costing sheets are used in SAP to define how costs are calculated for materials and production processes. They include various parameters such as overhead rates, cost elements, and allocation methods.
  Overhead Keys: Overhead keys are used to determine how overhead costs are allocated to cost objects. They define the percentage or fixed amount of overhead that should be applied.
  Costing Variants: Costing variants are configurations that determine how cost estimates are calculated in SAP. They include settings for costing sheets, valuation methods, and other parameters.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in controlling (CO) and product costing.