title: How to use two apps in one Firebase project for push notifications
body: <p>I have created one project(TravellerProject) in Firebase developer console... i've added an Android App(UserApp) and i've taken <em>Server key</em> and i used that server key for push notification in to my App Admin site... now i have a new App(DriverApp) related to first App(UserApp)... both are same domain so i didn't created new Project, instead i added one more App in the same  project(TravellerProject) with different SHA-1 key... and i was trying to use push notifications for new App(DriverApp). can i use same <em>Server Key</em> for both or i've to create new Server key...?</p>