Let's say an order is paid for by line item, and 2 of 4 line items are paid for (for example), leaving 2 line items unpaid. How would I go about identifying which 2 line items that payments has paid for?
From the API documentation I would have imagined the 'lineItemPayments' block via the Payments endpoint would list which line item that payment has paid for (assuming the payType of 'SPLIT_ITEM'), but even though I'm expanding it, it never returns anything. Is this a bug?