The good news is that the ability to sync with Square is a core feature of QuickBooks Online (QBO) and is available on all subscription levels, @thatmacaronguysc.
Here's how:
- Select the My Apps menu from your QuickBooks Online dashboard.
- Go to the Find Apps section.
- Enter the keyword Square in the search field.

Kindly note that Square is not currently supported in QuickBooks Online Solopreneur, it is only available in QuickBooks Online (QBO).
You can reach out to us anytime if you need assistance.