We have been on our custom GraphQL API integration for a few months now and all seems to be working fine. I do have a question regarding merged orders with the Shipment Update webhook.
Specifically, when we receive the webhook data, only the master order is sent in the [order_number] field and, moreover, it seems that only the master order’s products are being sent along in the line items, rather than all the products of all the merged orders. This makes it impossible to fulfill the orders on our store (the master is fulfilled perfectly, while the other merged orders are not).
Is there anything I can do to retrieve the missing information?