I'm using Expo to build 2 android app, and using 1 Firebase Project.
For Notification I'm using expo-notifications.
I had uploaded Firebase Server Key to Expo expo push:android:upload --api-key XXX-XXX-XXX.
I had configured android app credential in firebase Project Settings with SHA-1 from Google Play Console, then downloaded the latest google-services.json, then placed in app.json and set path android.googleServicesFile : "./google-services.json".
I had configured package name API Google Cloud Platform same as app.json android.package, same as Android App Firebase Project Setting Package Name.
I had configured SHA-1 Certificate Fingerprint API Google Cloud Platform and Android App Firebase Project Settings same as SHA-1 Certificate Fingerprint from Google Play Console.
I had enabled Firebase Installation API, Firebase Cloud Messaging, FCM Registration API, Cloud Messaging in Google Cloud Platform.
I set single user login within my app, so When user did new login, the past of usertoken will be reset to a new token, and another login will be logout.
The problem is, one of my app works perfectly, and another one came out with error, it said, Fetching the token Failed, message : FIS_AUTH_ERROR.
And Notification is not delivered to broken app.
Help me please...