Order Creation: As you mentioned, we should use the order_create (https://developer.shiphero.com/schema/#mutation-order_create). However, we are unsure about the “minimum required arguments” among all those listed in the CreateOrderInput definition (https://developer.shiphero.com/schema/#definition-CreateOrderInput). Could you clarify which fields are mandatory?
Inventory Query: How can we check inventory levels in Shiphero?
Lastly, how can we add attached files to orders via the API?