How do I turn on mileage tracker in app? I am the master admin and have added my vehicle already But the mileage option is not showing in the app

Turning on the mileage tracker in the app will only take few easy steps, userian1.

You'll have to turn on the feature first before adding the vehicle to QuickBooks. To turn this on, you can follow the steps below:

1. Open the QuickBooks mobile app.
2. Select the menu ☰ icon and then Mileage.
3. Select Auto-tracking.
4. Turn on Auto-tracking.

Then, turn on your mobile device's background location permissions. You can check out this article for your guide: Set Up Mileage Tracking and Vehicles in QuickBooks Online. 

For future reference, you'll want to categorise your mileage after you've reached your destination. 

Let me know if the steps above help with mileage. I'll always be right here if you need further assistance.