How do your app sync cancel/refund orders

With the app, returns are synced in a manner very similar to the Sales (just reverse). We specifically create RefundReceipt for the returns.
1. If the order is cancelled before our app syncs the order to QBO then our app does not sync that order and marks to not sync that order.

2. If the paid order is cancelled and the refund/return in Shopify had the products listed, the RefundReceipt will be created with all those products very similar to the SalesReceipt for the sale. It will also show the method through which the refund was proceeed - Shopify, PayPal, afterpay, etc. If the refund is done as a lumpsum amount in any order, then it will not be synced with the individual products but will rather be synced as Refund Discrepancy.

3. If the partially paid order is cancelled and the refund/return in Shopify had the products listed, the RefundReceipt will be created with all those products.

4. If unpaid order is cancelled then the invoice will be voided.