I have followed the steps for how to use web connector &amp; really helpful to me. I'm using QuickBooks professional 2012 &amp; .Net framework4.0, SQL2008 R2.  When I tried to provide static values in buildRequest() methods to create XML file there is no issue. But when tried to get the values from database the web connector returns Error message. I have used Dataset for fetching the values from database. Can anyone help me in this?