Create Shipping Quote

The createShippingQuote method returns a shipping quote that contains a list of live "rates." Each rate represents an offer made by a shipping carrier for a specific service and each offer has a live quote for the base service cost. Rates have a time window in which they are "live," and rates expire when their purchase window ends. If offered by the carrier, rates can include shipping options (and their associated prices), and users can add any offered shipping option ...