When should I use GetOrders versus GetOrderTransactions?
Summary
GetOrders and GetOrderTransactions are similar calls, but have varying input and output parameters. Based on your needs, you can use either call to retrieve combined payments related Order and Transaction Details.
GetOrders
Inputs: CreateTime Filter when you do not know the OrderIDs you are looking for, or OrderID if known.
Filters: OrderRole, OrderStatus, and ListingType ( Half.com only)
Output: Order Details and Minimal Transaction information
GetOrderTransactions
Inputs ItemID/TransactionID or OrderID (** must know OrderID or ItemID **)
Filters: None
Output: Order Details and Full Transaction Details