How To Fix CK100 - Overhead group & has no overhead key

SAP Error Message - Details

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 100

• Message text: Overhead group & has no overhead key

What causes this issue?

The master record of material &V2& in plant &V3& contains
<DS:GLOS.overhead_group>overhead group</> &V1&. No
<DS:GLOS.overhead_key> overhead key</> has been assigned to this
overhead group.

System Response

The system cannot calculate the overhead for materials with this
overhead group.
&sys_admin&
If you have authorization for Customizing, assign an overhead key to
overhead group &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK100 - Overhead group & has no overhead key ?

  The SAP error message CK100 indicates that there is an issue with the overhead group in the context of cost accounting, specifically in the Product Costing module. The message states that the overhead group does not have an associated overhead key, which is necessary for calculating overhead costs in the costing process.
  Cause:
  
  Missing Overhead Key: The overhead group defined in the material master or cost estimate does not have a corresponding overhead key assigned to it.
  Configuration Issues: The overhead group may not be properly configured in the system, or the overhead key may not be defined in the controlling area.
  Data Entry Errors: There may be a mistake in the data entry when creating or updating the material master or cost estimate.
  
  Solution:
  
  
  Check Overhead Group Configuration:
  
  Go to the configuration settings in SAP (Transaction code: SPRO).
  Navigate to Controlling > Product Cost Controlling > Cost Object Controlling > Overhead Calculation.
  Ensure that the overhead group in question is properly defined and has an associated overhead key.
  
  
  
  Assign Overhead Key:
  
  If the overhead group is missing an overhead key, you need to assign one. This can be done in the configuration settings or directly in the material master record.
  Use Transaction code: MM02 to modify the material master and ensure that the correct overhead group and key are assigned.
  
  
  
  Review Material Master:
  
  Check the material master record for the relevant material to ensure that the overhead group is correctly assigned.
  Ensure that the costing view is properly maintained.
  
  
  
  Check Costing Variant:
  
  Review the costing variant settings to ensure that the overhead calculation is set up correctly.
  Use Transaction code: OKKN to check the costing variant configuration.
  
  
  
  Test the Changes:
  
  After making the necessary changes, re-run the cost estimate to see if the error persists.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM02: Change Material Master
  CK11N: Create Cost Estimate with Quantity Structure
  CK40N: Change Cost Estimate
  SPRO: Customizing Implementation Guide
  OKKN: Costing Variants
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on overhead calculation and configuration.
  
  
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  
  By following these steps, you should be able to resolve the CK100 error and ensure that your overhead calculations are functioning correctly in SAP.