Method Codes
You can create Method Codes corresponding to various services, as well as modify and delete existing ones in the Method Codes view of the Back Office. To access the view, click Services in the Back Office menu, and select Method Codes.
The Method Codes created in this view are company-level codes which will be be visible as options in the Services section of product details. If needed, you can still override these settings defined for individual products in the Services settings.
To access the Method Codes view you need to belong to a user group with Services: Read/Modify permissions, and Show method and place codes enabled.

Method Codes view (example)
Add a New Method Code
In the Method Codes view, click +Add New.

Adding a new method code
Enter the Method code and the Method name for the service.
Click Save to save your changes.