Push Notification Setup:
Firebase Cloud Messaging Instance ID Tokens uniquely identify an instance of an app. They are globally unique. It doesn't expire, though. It renews itself if one of the following happens.
Short Direction: {Amazcart> Dashboard> System Setting> Push Notification Setup> FCM Server Key> Save.}
If you want the setup to push notifications, you must create an FCM server key to open the segment & save it.
1- Push Notification Setup
2- FCM Server Key
3- Save it.
