Carriers
Carriers are already set up for you based on the licenses that you have purchased. You can edit services and package types for Parcel and Freight Carriers. For couriers, you can add your own services, options and links to courier web sites for tracking.
Check or uncheck the "enabled" checkbox to manage the display of services you want to make available for shipping. You can also enable specific services for returns and automatically set the package type based on the service selected.
Courier Setup
If you use a local courier, or deliver packages with your own driver - the courier setup allows you to enter in the services and detail options for the shipment record. When selected on the shipment screen, these details will display on the package label.