By default, your white labeled apps do not support push notifications. Enabling push notifications requires the creation of a Firebase account, which provides the infrastructure required to send and receive push notifications.
There are two things you need to provide AppSheet to allow us to send notifications to your white label apps:
Firebase API Key
Firebase configuration file (.json for Android or .plist for iOS)
To complete the above tasks, you'll need to create a Firebase account.
Creating a Firebase Account
If you have already created a Firebase account, you can then learn how to send push notifications on Android and iOS.