Add a Shipping Method to a Return

Remove Item from Return DELETE

Remove a requested item to be returned by the ID of the item's `RETURN_ITEM` action. Every item has an `actions` property, whose value is an array of actions. You can check the action's name using its `action` property, and use the value of the `id` property. return.

Update a Shipping Method of a Return POST

Update a shipping method of the return by the ID of the item's `SHIPPING_ADD` action. Every item has an `actions` property, whose value is an array of actions. You can check the action's name using its `action` property, and use the value of the `id` property.