Shipping carriers
A shipping carrier identifies the company that transports a shipment. Custom carriers are created in QuickStart. Integrated carriers are synchronized from ShipStation API.
Open Menu > Products and services > Settings > Shipping > Shipping carriers to view carriers. From the list, you can create a custom carrier or use the row actions menu to view, edit, or delete an eligible custom carrier. A carrier that is referenced by another record cannot be deleted. Integrated carriers are read-only.