c# - Dynamics GP Webservices CountryRegionCodeKey

Question

我正在通过网络服务创建一个新的销售订单。我将 ShipToAddress 属性设置为 BusinessAddress 类，其国家代码与账单地址所在的国家/地区不同。当我创建订单并将其发送给 GP 时，没有错误，GP 收到订单；但是，当我查看订单并查看船舶地址时，国家代码不是我设置的，而是似乎使用账单地址或主要地址国家代码。

    SalesOrder salesOrder = new SalesOrder();
    salesOrder.ShipToAddress = ConfigureDropShipAdress(shipToCustomer);

    private BusinessAddress ConfigureDropShipAdress(Customer dropShipCustomer)
    {
        var dropShipAddr = dropShipCustomer.Addresses.Where(a => a.Key.Id == "SHIP").FirstOrDefault();

        BusinessAddress busAddr = new BusinessAddress
        {
            ContactPerson = dropShipAddr.ContactPerson,
            Name = dropShipAddr.Name,
            Line1 = dropShipAddr.Line1,
            Line2 = dropShipAddr.Line2,
            Line3 = dropShipAddr.Line3,
            City = dropShipAddr.City,
            State = dropShipAddr.State,
            PostalCode = dropShipAddr.PostalCode,
            CountryRegion = dropShipAddr.CountryRegion, //This puts Unites States for our dropship customer
            CountryRegionCodeKey = dropShipAddr.CountryRegionCodeKey, // the code is correct at this point, but the country code is wrong in GP client... It is the original address's Ccode
            Phone1 = dropShipAddr.Phone1,
            Phone2 = dropShipAddr.Phone2,
            Phone3 = dropShipAddr.Phone3,
            Fax = dropShipAddr.Fax,
            ExtensionData = code.ExtensionData,
            Extensions = code.Extensions
        };

        return busAddr;
    }

我究竟做错了什么？如何让销售订单使用我设置的国家代码？