FedEx services have a minimum weight that each shipment needs to meet to successfully book in with that service, below is a table shows each service with it's minimum weight requirement in KGs

Service Name
Minimum Weight (Kilograms)
FedEx 2Day®
0.001
FedEx Express Saver®
0.001
FedEx First Overnight®
0.001
FedEx International Economy®
0.001
FedEx International First®
0.001
FedEx International Priority®
0.001
FedEx Priority Overnight®
0.001
FedEx Standard Overnight®
0.001
FedEx UK Economy
0.001
FedEx UK Next Day By 9am
0.001
FedEx UK Next Day by 10am
0.001
FedEx UK Next Day by 12 noon
0.001
FedEx UK Next Day
0.001
FedEx UK Freight
0.001
FedEx 2Day® A.M.
0.001
FedEx Ground®
0.001
FedEx Home Delivery®
0.001
FedEx SmartPost®
0.001
FedEx International Priority® Express
0.001
FedEx Europe First®
0.001
FedEx 1Day® Freight
68.182
FedEx 2Day® Freight
68.182
FedEx 3Day® Freight
68.182
FedEx First Overnight® Freight
68.182
FedEx International Economy® Freight
68.182
FedEx International Priority® Freight
68.182


If your weight is below the service minimum, your shipment will be rejected. However, in your FedEx advanced settings there is an option you can enable for when your weight is below the service minimum, it will be increased up to match the minimum weight.


If you want your shipments weight to auto-update to match the minimum service weight, you'll want to switch the above option to Yes


If you have any queries about this, feel free to contact support and we'll be happy to help.