Push message notifications are received by the Apple IOS devices while the same is not received by Android devices. On checking the sys_push_notif_app_install table, we can see that Android devices are not getting registered when a user logs in.
The following REST API call is not triggering for Android but it is triggering for iOS.
This happens when there is no Active applet launcher in the instance.
It is necessary to have the applet launcher for the notification to work on the Android device.
The issue gets resolved after activating the applet launcher in the instance.