open_notification event not being triggered when app is not in background

[khuffie]

Before this gets flagged as a duplicate of #8128, we have updated to the new version of Firebase SDK that includes this resolution and the issue still exists.

[REQUIRED] Step 1: Describe your environment

• Xcode version: 12.5
• Firebase SDK version: 8.2.0
• Installation method: SPM
• Firebase Component: Messaging

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

1. Force quit the app
2. Send a push notification to the app
3. Tap on the push notification
4. Observe Debug View
5. Expected: notification_open event gets triggered
6. Actual: No notification_event gets triggered

We are noticing that iOS is severely undercounting the push notification open rate. On Android, our open rate is around 12%. On iOS, our open rate is around 0.29%. However, evidence suggests that users ARE receiving push notifications and opening them on iOS (we see similar surges in traffic as Android), but just that the notification_open event is not getting triggered.

We have confirmed that swizzling is ON.

We have tested the following scenarios, each 10 times, and each reproduced 100%

App is in the background, notification is received, notification_open is triggered
App is closed, notification is received, notification_open is NOT triggered
App is open in foreground, notification is received, notification_foreground is triggered correctly
We are monitoring the events via the DebugView.

[joaopdcgarcia]

We have been unable to see opens in the notifications funnel, with swizzling OFF.
We are sending parallel events that tell us the opens are happening though.

[Pyr3z]

It used to be able to log opens somewhere around v7.1.0 (Firebase Unity), but upon upgrading to v9.1.0, we get 0 logged opens, out of 100s of millions of sends.

Is this somewhat intentional? I must ask because the docs do state about logging "Opens – The user opened the notification message. Reported only for notifications received when the app is in the background."

– which of course tends to be a rare case... but I mean, it shouldn't be zero out of billions...

[bguidolim]

I'm facing the same issue, with swizzling OFF and reporting it manually with Messaging.messaging().appDidReceiveMessage(userInfo). We are getting 0 opens.

[damien-elia]

Hello, I'm also using 9.1.0 version of Firebase Cloud Messaging Unity, and I can confirm that we don't get any notification_open events from iOS ( Android seems fine ). Has this issue been fixed in most recent versions?

[KaustubhKulkarni2202]

Is there any further update on this I'm using 10.24.0 and facing the same.

[leojaygoogle]

Hmm, I cannot reproduce this.

How I tested this:

1. Start the test app

2. Swipe up, kill it, and make sure it's not running.

3. Go to the Notification Composer and send a test message
4. Click the notification on the device.

5. Check the DebugView page
   

As you can see, notification_open is right there.

Could you reproduce the issue using a basic app, such as our provided sample app? https://github.com/firebase/firebase-ios-sdk/tree/main/FirebaseMessaging/Apps/Sample