My company has an Android application with integrated In-app billing. When customer purchases an order, the application recieves the order id. After that, the app sends this data to the server, and the server checks this order id for existence, via Notification History API.
Before November 9, this order id always was a format known as Google Order Number (for example 56260349814XXXX). After November 9, we began recieving order ids as a format known as Merchant Order Number (for example 1299976316905470XXXX.137189007792XXXX).
How can our sever check orders by Merchant Order Number? Or, how can we convert Merchant Order Number to Google Order Number?