Order export with no SKU

To be able to include the SKU in the order export file add the following:

In file nopcommerce\Libraries\Nop.BusinessLogic\ExportImport\ExportManager.cs

Add the line
        xmlWriter.WriteElementString("SKU", null, orderProductVariant.ProductVariant.SKU.ToString());


after line 927

within the function
        /// <summary>
        /// Export order list to xml
        /// </summary>
        /// <param name="orders">Orders</param>
        /// <returns>Result in XML format</returns>
        public string ExportOrdersToXml(List<Order> orders)


Recompile and copy the new dll NOP.BusinessLogic.dll to your live server