Core Admin APIDraft Orders
Update Existing Item in Draft Order Edit
Add Item to Draft Order Edit POST
Add an item to a draft order edit.
Update New Item in Draft Order Edit POST
Update a new item that was added to a draft order edit by the ID of the item's `ITEM_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.