Go to SPRO → SAP Reference IMG → Controlling → Profit Center Accounting → Assignments of Account Assignment objects to Profit Center → Material → Assign Material Masters → Execute.
A new window will open. Enter the material Id for which the profit center is to be assigned and press Enter.
Select the view of the material master.
In the next window, enter the following details −
In the next window, enter the Profit Center and click the Save icon at the top.