POST https://api.ebay.com/post-order/v2/inquiry/5********8/provide_shipment_info { "shippingCarrierName": "FedEx", "shippingDate": { "value": "2015-09-05T20:18:17.000Z" }, "shippedWithTracking": "true", "trackingNumber": "1*********7" "proofOfShipmentUploaded": "false", "sellerComments": { "content": "I have shipped this item. Here are the shipment tracking details." } }