i've worked with web connector before, though not extensively. we did invoice and customer imports. no extensive sync or anything. the key is just to write against their giant xsd schemas that are in the install or support folder. also this exists: https://idnforums.intuit.com/messageview.aspx?catid=56&t...
Yup, and none of that is any fun. As a developer, what would you prefer: writing against their giant XSD schemas or just making a POST request to a URL with invoice information? I'll take REST any day of the week.