If you'd like to automatically employ a specific Carrier according to the Shipment service of an order, like Express for FedeEx, then keep reading! 🔎
As a first thing, you need to check the shipment method to assign, which can be done from To Ship section by clicking on the order.
This way you'll be able to take a look at all the details for that order as, for example, the Shipping Service.
At this point, write down the service that the customer selected at the checkout:
How to add a Carrier Rule to favorites
If you click on the star, you'll add your carrier rule to your favorites. This means that if an order is compatible with that carrier rule, any other carrier won't be shown.