That's going to be a problem for you, because you're building a web application. That means that a Windows GUI must be present in order for data exchange with QuickBooks to happen. The QuickBooks SDK/API is a little stupid in that it uses a Windows COM GUI message pump to do it's dirty work of actually communicating with QuickBooks. Your approach using COM probably will not work. End the session and close the connection to QuickBooks ICustomerRet customerRet = (ICustomerRet)response.Detail IMsgSetResponse responseMsgSet = sessionManager.DoRequests(requestMsgSet)

Send the request and get the response from QuickBooks ICustomerQuery customer = requestMsgSet.AppendCustomerQueryRq() ICustomerAdd customerAddRq = requestMsgSet.AppendCustomerAddRq() SessionManager.BeginSession('', ENOpenMode.omDontCare) Connect to QuickBooks and begin a to Z Wholesale Inc.QBW', 'QuickBooks Integration Demo') IMsgSetRequest requestMsgSet = sessionManager.CreateMsgSetRequest('US', 8, 0) Create the message set request object to hold our request This is what i found of sample code but i would like to what is the value that i have to set in the AppId parameters in the (sessionManager.BeginSession('', ENOpenMode.omDontCare) ). I have an asp.net application and i want to connect it to quickbooks desktop edition, in the web application i want to do the below :Ģ- create new invoice and save send it to quickbooks.

Quickbooks desktop app integration