Under the contract data collection, you can manage the cost center for an employee.
If the cost center isn't listed, you can go to "Attributes" in the left-hand menu and add cost centers there.
You can only add cost centers.
To change or remove them, contact your payroll administrator.
If you're working with a (new) employee and the desired cost center isn't listed, click the gear icon (see image below). The add a cost center page will open in a new tab, allowing you to add a new cost center to the system. You can then select it directly for the employee.