ONESIGNAL
Required For Setup
A OneSignal Account, if you do not already have one
Your OneSignal App ID, available in Keys & IDs
A device or emulator that has Google Play services installed and updated on it
Keys & IDs Setup
Login to your OneSignal Account and select your app
Select SETTINGS > Keys & IDs to get your OneSignal APP ID and REST API KEY
After you have one signal app id you must put it on an android AppConfig.java the value is at Notification.notif_one_signal_appid
Go to one signal dashboard https://app.onesignal.com/ and select your app, Messages > Push > New Message > New Push
2. Fill notification form and send
To send notification to open specific product or offer you only need to fill launch URL with post url and page url
Product ( Post ): https://shopline-app.blogspot.com/2023/02/the-odene-fringe-turtleneck.html Offer ( Page ) : https://shopline-app.blogspot.com/p/must-have-beauty-products.html