Connecting the suggested expensify app to quickbooks??

Hi dombewell-gmail-,

Thanks for posting in the Community! Let me show you how to connect a third party app like Expensify in QuickBooks Online.

1. From the left menu, select Apps. 
2. Go to the Find apps tab.
3. Enter the app name in the search bar or select the Browse category ▼ drop-down menu to check out different apps.
4. Once you find the app,  select its tile to see the reviews and pricing.
5. To start the signup process, select Get App Now.
6. Select Install.
7. Authorise QuickBooks to share your data with the selected app.
8. Configure any sync preferences.
9. Select Save & Sync.

For more detailed information, you can check on this article: Install and use apps.

Let me know if you need help by dropping a comment below. Have a nice day!