Hello @dg311.
When you use applications to sync your sales transactions to QuickBooks Online (QBO), it's like your downloading bank transactions from your bank. You can match them with the records created in QBO. Moreover, transactions from Square can be downloaded as invoices or payments.
For the application's setup, you can contact their support so that they can guide you through the system settings. Moreover, transactions from Square can be downloaded as invoices or payments.
To learn more about QuickBooks and Square integration, visit https://quickbooks.intuit.com/integrations/square.
I've added articles for more information about integrating third-party applications to QBO:
I want to make sure this is taken care of for you. If you have additional questions or concerns while working in QBO, leave a comment below. I’m here ready to help you.
