Not receiving notifications on the app

Question

Created Feb ’21

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One of our customers is facing an issue with notifications not showing up for our app in their device. When sending notifications to the registered token, from our server to the APNS server, the response shows no errors and shows like payload has been pushed but the notifications are not received on the user's device.

We saw the silent notifications we sent were received by the device, only normal priority notifications were not received, did not reach the notificationService.m code on the service extension.
All notification settings are intact on the device for the app.
No issues with the payload as we tested the same payload to other devices and the notification was received.
The user is on OS 14.3.

Kindly check and let us know what could be the issue thats occurring on the specific device.

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Answer 1

Engineer OP

Apple

Feb ’21

There are just too many moving parts here to start guessing what might be wrong.
Starting with the difference you are seeing with silent notifications, and normal notifications:

in order for the notification to kick off your service extension, the payload must contain

Code Block "mutable-content": 1

and for the silent notifications to reach the app, the payload must contain

Code Block "content-available": 1

If the payload for this customer is correct, and the push token is also the correct one for the mutable pushes, you must consider that there could be a bug in your code, or the user has changed something with the notification settings.

Keep in mind that the service extension will only be executed if the notification is going to be displayed. So, make sure your alert payload is also intact and correct, and the user has not made any changes to the settings that would stop your notifications from being displayed.

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