Hi there, @Caylagray.
Allow me to share some information about integrating applications to QuickBooks Desktop (QBDT) for Mac.
Any applications that rely on the QuickBooks SDK, WebConnector, or App Center to access QuickBooks data won't integrate with QuickBooks Desktop Mac. To integrate the Shopify app to QuickBooks, you may subscribe to our QuickBooks Online plan.
Or, you can look for compatible apps with QBDT for Mac through the marketplace.
To learn more about the QBDT for Mac, you can open our QuickBooks Desktop Mac User’s Guide for all related topics it covers. For easy search, press Ctrl + F on your keyboard, then enter a short description of the subject needed.
If you have any other questions, please let me know by adding a comment below. I'm more than happy to help. Have a great day!