CURRENTLY USING ONPAY AND INTEGRATION IS HORRIBLE.
IF I CHANGE BACK TO QUICKBOOKS BEFORE QUARTER IS OVER IS THAT GOING TO SCREW THINGS UP?
You don't have to worry about anything when changing back to QuickBooks. It'll not affect any of your transactions.
Here are the articles that will guide you when you start to set up with QuickBooks.
Just tap on me whenever you need help with QuickBooks Desktop.