You try to check in, but the app reports that you are not in the tariff area?

Depending on the smartphone, it can take up to 30 seconds for the current location to be determined when location services are activated. So if you see this error message in the tariff area, your location has not yet been determined by the location services of the smartphone. This can be prevented by activating the location services permanently or by allowing an appropriate amount of time to elapse between the start of the app, including activation of the location services, and the start of the journey.