How do I map the data between CSV downloaded from eBay console and XML responded through getOrders API?
I'm currently making an application for user to upload CSV file about sales record downloaded from eBay console and XML data from GetOrders API. When I get CSV file and the data from API, I cannot find out there is a common ID. Even OrderID has multiple values in single order in CSV but single OrderID in single order In API. What key should I use to map these two data?