Shipping service used to ship items. You can specify multiple shipping services. DSRs will be aggregated for items that used the specified shipping services only.
Use one of the transaction calls in the Trading API, such as
GetSellerTransactions to determine what shipping services buyers selected (e.g., TransactionArray.Transaction.ShippingServiceSelected.ShippingService). Alternatively, use
GeteBayDetails in the Trading API with DetalName set to ShippingServiceDetails to retrieve the currently supported shipping service names.
If you don't specify this field, no shipping service restriction applies to the request.