Hello there, amazementcleanin.
Here's how you can sync TSheets into QuickBooks Online:
- On the left panel, click Apps.
- Type TSheets in the search box, and click the app the open.
- From the TSheets window, click the Learn More button.
- Log in using your TSheets credentials, and click Next.
- Follow the on-screen instructions.
You can also check this article for the other way of integrating TSheets to QuickBooks Online: How to Integrate TSheets and QuickBooks Online.
Please don't hesitate to reach out to me if you need anything else. Thank you.