unknown - Carrier has no information about the package
pre_transit - Shipping information has been sent to the carrier. This does not indicate physical possession of the package.
in_transit - Shipment is currently on the way
out_for_delivery - Shipment is currently on its last mile and is close to the destination address
delivered - Shipment was delivered
return_to_sender - Shipment was not delivered successfully and is on the way back to the sender
cancelled - Shipment was cancelled