Notifications Not Redirecting on Android: Batched Delivery (2+ message/sec) Causes getInitialMessage() to Return Null

[yuhangang]

Hi, I am working on a Flutter application integrate firebase_messaging plugin, and displaying background notification based on plugin

Some of my users on Android devices are reporting that notifications don’t redirect them to the intended app content when tapped. We’ve analyzed Google Analytics (GA) events and noticed that notification_receive events are logged in batches—ranging from 2 to 20 within a single second—after a delay. We suspect this is caused by battery-saving mechanisms from certain Android manufacturers, which hold notifications and release them all at once.

Here’s the critical part:

FirebaseMessaging.instance.getInitialMessage() returns null when the app is opened from a notification tap, even though the native Firebase SDK tracks a notification_open event.
This suggests the initial message data is lost or not properly passed when notifications arrive in these rapid batches.

Does anyone have idea on this?