The shippingGroups array is supported in request and response payloads when appropriate. In request payloads, it is optional. In response payloads, it is returned as long as item relationships exist for one or more shipping groups in the cart/order. Each object in the shippingGroups array holds information about:
The shipping address (
shippingAddressobject) for the shipping group. ThisshippingAddressobject has analiasproperty that identifies the address.The shipping method (
shippingMethodobject) for the shipping group.The item relationships (
itemsarray) for the shipping group.The unique ID of the shipping group (
shippingGroupId), if known.

