QuickBooks Web Connector (QBWC) SOAP Service
SOAP contract for the QuickBooks Web Connector, the Windows application that lets a web service exchange qbXML with QuickBooks Desktop. The integrating developer's web service implements the methods defined in the QBWC WSDL (authenticate, sendRequestXML, receiveResponseXML, connectionError, getLastError, closeConnection), and the Web Connector calls them; there is no Intuit-hosted endpoint. The WSDL Intuit published at developer.intuit.com/uploadedFiles/Support/QBWebConnectorSvc.wsdl now returns 404 and is captured here from the Internet Archive copy of that URL.