On iPhone, you can also grant Google Maps permission to your iOS Contacts app to find Gmail addresses.
If you have “Allowed only while in use” (Android) or “While Using the App” (iOS) enabled, you’ll need to switch those options from your phone’s location settings.
To get started, fire up Google Maps, tap your profile in the top right, then choose “Location sharing.” Tap “Share location,” and you’ll see the sharing location settings menu.Once you’ve chosen your contacts, hit “Share.” If you need to adjust any location permissions, Google Maps will prompt you!