The publishable key is invalid.
The user enabled mock location app while mocking locations is prohibited.
The user disabled location services systemwide.
[Android only] The device doesn't have location services.
GPS satellites are not in view.
[Android only] The SDK wasn't able to start tracking because of the limitations imposed by the OS. The exempt from background execution conditions weren't met. https://developer.android.com/guide/components/foreground-services#background-start-restriction-exemptions
The user denied location permissions.
Can’t start tracking in background with When In Use location permissions. SDK will automatically start tracking when app will return to foreground.
[iOS only] The user has not chosen whether the app can use location services.
[iOS only] The app is in Provisional Always authorization state, which stops sending locations when app is in background.
The user didn't grant precise location permissions or downgraded permissions to imprecise.
[iOS only] The app is not authorized to use location services.
[Android only] The user denied notification permissions needed to display a persistent notification needed for foreground location tracking.
The SDK was remotely blocked from running.