iOS Background Notifications Not Being Displayed in React Native App

[furqan-fabtechsol]

I'm currently developing a React Native application and using Firebase Cloud Messaging (FCM) to handle notifications. The notifications work perfectly when the app is in the foreground. However, when the app is in the background, notifications are received, but the data payload is not being delivered to the app.

Environment
React Native Version: 0.73.6
Firebase Version: 20.3.0 (app), 20.3.0 (messaging)
@notifee/react-native Version: 7.8.2
Xcode Version: (specify your version)
iOS Version: (specify the iOS version you are testing on)
Testing on Real Device: Yes
Issue Details
Foreground Notifications: Working as expected, receiving both notification and data payloads.
Background Notifications: Notifications are received, but the data payload is not being delivered or handled by the app.
Steps Taken
AppDelegate Configuration: Configured as per the official documentation for handling notifications.
Permissions and Background Modes: Enabled background modes and configured permissions as required.
Testing: Verified on a real iOS device.