Hi there Matter Company,
It's vital that all your transactions are correctly entered in order for your books to be well balanced. QuickBooks Desktop is a great tool able to help you keep track of transactions so you can see the financials of your business. I can point you in the right direction for apps that connect with QuickBooks Desktop.
In order to connect Shopify to QuickBooks Desktop, you would need a third-party app to connect, or the connection might also be possible from Shopify's side. In order to see if there's a third-party app available that would be able to suit the needs of your business, you can view our apps page for QuickBooks Desktop.
If you have any other questions, feel free to reach out here.