This guide is provided by Conductor, the service that powers the QuickBooks Desktop integration for many business tools, including the one that sent you here.
If you ever encounter the error shown below when connecting to QuickBooks Desktop with Conductor, the most likely culprit is that the QuickBooks Web Connector is not running as administrator. This error prevents Conductor from communicating with QuickBooks Desktop.
To resolve this error, configure QuickBooks Desktop and QuickBooks Web Connector to run as administrator. The solution to this problem is the same as the solution to the problem described in that linked article.
If you’re still encountering the error shown above after completing all of the steps in the guide linked above, please email us at firstname.lastname@example.org.