Hi there camrosebooks-gma,
It's important that all your transactions be entered correctly so that your books can be well balanced. QuickBooks Online can connect to various services using third-party apps so that you can import information. I can point you in the right direction for information about apps.
There are a few apps available that can connect with Square. You can find them by going to the Apps section, then typing Square in the search bar. You can click on them to view info about the apps from their developers as well as customer reviews to help you make the choice of the best app to help you with your business.
If you have any other questions, feel free to reach out here.
