I wanted to ask if there’s a time-tracking and automated billing. Something to track time and generate invoices automatically through QBO.

Yes, many apps track time and create bills automatically. I recommend visiting the QuickBooks App Store to explore the available options.

To utilize a Third-party application that can integrate with the program you need. Here's how:

1. On the left-hand side menu, click on Apps. It will take you to the Apps section.
2. In the Apps section, you'll see options to explore available apps. You can search for specific apps using the search bar or browse categories to find apps that suit your needs.
   
3. Click on any app for more details, including features, pricing, and user reviews.
4. If you find an app you want to use, click the Get app now or Install button, and follow the prompts to connect it to your QuickBooks Online account.
5. After installation, complete additional setup steps within the app to customize it for your business.

Additionally, I recommend checking the QuickBooks App Store. It contains all the overviews and FAQs for each app.

 Moreover, explore this article: Fix connected app issues in QuickBooks Online. It ‌shows the status of all your apps so you can view and fix errors all in one place.

Feel free to comment below if you have concerns about apps. I'll be here to provide additional assistance.