Why does QB keep turning off auto tracking especially if something else is running like Spotify or sat nav on mobile phone.??

I'll help you perform some mobile troubleshooting steps so you can seamlessly track your mileage and make the most of your QuickBooks app, @dandmlewismotorr.

QuickBooks would turn off auto-tracking if it detects that the device is low on battery or if other apps are running that are using a lot of resources. It's also possible that there may be a software issue causing the app to shut down unexpectedly. 

Have you tried updating the app? If you haven't, I recommend updating both your QuickBooks app and your mobile device to the latest versions. This will improve the app's stability and ensure accurate mileage tracking. For more detailed guidance, please refer to this resource: Fix mileage tracking issues in the QuickBooks mobile app.

Meanwhile, we can clear your app data on your mobile device to reset the app to its default state. The stored cache can cause unusual behavior in the QuickBooks app. 

For iOS users:

1. Open your Settings, then tap General.
2. Tap iPhone Storage. Choose the QuickBooks Online app.
3. Click Offload App.
4. This action will clear storage space while keeping your app's documents and data intact.

For Android users:

1. Proceed to the Home menu or tap the three dots in the right upper right corner.
2. Tap on Settings, then select Refresh Data.
3. Press Yes.

If the issue remains, I recommend uninstalling and reinstalling the mobile app to ensure you get the latest version of the QuickBooks app.

Moreover, you can access your QBO account using any supported mobile web browser. This can serve as an alternative approach to accessing the QBO app.

Furthermore, here's a guide to assist you in recording business miles for one or more vehicles and entering mileage reimbursements if your employees used their automobiles for business:

• Automatically track mileage in QuickBooks Online and QuickBooks Sole Trader.
• Reimburse employees' mileage and vehicle expenses in QuickBooks Online.

If you have further questions or concerns about mileage tracking, please return to this post. I'll be available to offer support. Stay well.