Yes, QuickBooks Online can integrate with a number of apps, robert92.
And Magento is one of those apps. You can search it through the Apps menu in QuickBooks Online or go directly to this link: https://quickbooks.intuit.com/app/apps/home.
Once you find the app, you'll have an option to integrate it with QuickBooks Online. If you have additional questions or need further assistance with the integration process, I'd recommend contacting Magento's support team. They can assist you with the app's navigation, setting up the account, and the integration of the third-party programs.
We'll be right here if you have additional questions regarding the integration process.