Hello there, were you following the steps from a QuickBooks help article or somewhere else online?
App features are only available for the Simple Start, Essentials, or Plus plans. If you're using a QuickBooks Sole Trader subscription, there is no option to connect. It could be the reason why you see the "page not found" error. The Sole Trader plan does not include the integrations.
For now, you can manually import your transactions using a CSV file instead of a direct connection.
If you have questions, let us know in the comments. We're always here to help.
