Once prompted to choose your accounting system or by going to the setup cog and selecting Accounting System => Settings select 'Quickbooks' from ...

You can experience an issue with the orders failing to import and the error logs showing a message as follows. There is an invalid reference to QuickBoo...

 Error Occurred while Importing   08-Jan-2020 03:50:00 : An error has occurred in '<?xml version="1.0" encoding="utf-8"?><...