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Define Overhead Keys in SAP

Updated Jan 08, 2023

This SAP Controlling tutorial, explains the step-by-step procedure for defining Overhead Keys in the SAP system with the proper screenshots.

What are Overhead Keys?

SAP CO Overhead specifies which overhead is applied to a reference object (like material), which forms a link between overhead conditions and the material master record.

How to Define Overhead Keys in SAP?

Please follow the steps below to define overhead keys in your SAP system:

Enter t-code SPRO in the SAP command field and Execute it.


Now on Customizing: Execute Project screen click the SAP Reference IMG button to proceed.

Reference IMG

Next, navigate to the following SAP IMG path:

SPRO > IMG > Controlling > Internal Orders > Actual Postings > Overhead Rates > Maintain Overhead Key

IMG path

On the Change View "Overhead key": Overview screen, you will see the list of the previously defined Overhead keys on your SAP system.

Previous Overhead Key

Next, click the New Entries button to define a new Overhead key in your SAP system.

New Entries

Now, provide the following details about the new purchase order type:

  • Overhead: Input a unique alphanumeric key that identifies the new overhead key in your SAP system.
  • Description: Enter the short description for the new overhead key.


Once all the details are entered click the Save button to save the new configuration.


Next, select your Customization Request id and press Enter to proceed.


A message Data was saved will be displayed on the bottom of your screen.

Data was saved

You have successfully created a new Overhead key in your SAP CO system.