I have a question regarding Order in Invoice.
So when we create an invoice using API call in SquareUp sandbox account, order id parameter is required but when we create invoice from the UI form in SquareUp sandbox, order id parameter is not required.
Can we create an invoice using an API call in SquareUp without order id?
If it is possible then please give some information regarding this.
At this time only orders with fulfillment details that have been fully paid will be pushed to the Square Dashboard Items & Orders > Orders section, so that sellers can manage fulfillments within their seller Dashboard. The Orders API currently supports two types of fulfillment orders: Pickup and Shipment . Read more about how to make fulfillment orders in our Create Orders guide.