C# CompleteSale sample to upload shipment tracking number

/*
© 2010-2013 eBay Inc., All Rights Reserved
Licensed under CDDL 1.0 - http://opensource.org/licenses/cddl1.php
*/

using eBay.Service.Call;
using eBay.Service.Core.Sdk;
using eBay.Service.Util;
using eBay.Service.Core.Soap;

namespace Trading_Samples
{
    public class OrderManagement
    {   
        private void CompleteSale()     
      {
                         
            //create the context
            ApiContext context = new ApiContext();

            //set the User token
            context.ApiCredential.eBayToken = "Your token";

            //set the server url
            context.SoapApiServerUrl = "https://api.sandbox.ebay.com/wsapi";

            //enable logging
            context.ApiLogManager = new ApiLogManager();
            context.ApiLogManager.ApiLoggerList.Add(new FileLogger("log.txt", true, true, true));
            context.ApiLogManager.EnableLogging = true;

            //set the version
            context.Version = "817";
            context.Site = SiteCodeType.UK;    

            //Create the call and set the fields
            CompleteSaleCall apicall = new CompleteSaleCall(context);

            //Either ItemID-TransactionID or OrderLineItemID or OrderID is required. If item is part of an order, specify OrderID.
            apicall.OrderLineItemID = "OrderID here";
            apicall.Shipped = true;
            apicall.Shipment = new ShipmentType();
            apicall.Shipment.ShipmentTrackingDetails = new ShipmentTrackingDetailsTypeCollection();

            ShipmentTrackingDetailsType shpmnt = new ShipmentTrackingDetailsType();
            shpmnt.ShipmentTrackingNumber = "Tracking Number here"; 
            shpmnt.ShippingCarrierUsed = "YourCarrier";
            
            apicall.Shipment.ShipmentTrackingDetails.Add(shpmnt);

            //Specify time in GMT. This is an optional field
            //If you don't specify a value for the ShippedTime, it will be defaulted to the time at which the call was made
            apicall.Shipment.ShippedTime = new DateTime(2013, 7, 23, 10, 0, 0).ToUniversalTime();

            //call the Execute method
            apicall.Execute();
            Console.WriteLine(apicall.ApiResponse.Ack);
              
       }

  }

}