Configure firebase is very IMPORTANT for this project, From this firebase configuration you will get 2 feature,
Make sure you already change applicationId at file app/build.grade
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Please DON'T change any dependencies { } version and gradle version you ALLOW to change applicationId, versionCode, versionName
1. Firebase Analytics 2. Firebase Push Notification / Firebase Cloud Messaging (FCM)
Here you can follow this article :
ADMIN PANEL You will get Firebase Key (FCM) for admin panel need (you can read tutorial admin panel documentation )
ANDROID Then you need to generate file google-services.json for android project,