Hello, I'm from Microsoft team maintaining push notification api behind Teams platform.
We are experiencing strange and short error spikes towards APNS that seem to mostly correlate worldwide. We checked the networking and push request code but could not find what could be causing this. These error spikes are all timeouts or connection resets (by remote host, ie. APNS servers) and seem to come and go randomly:
Would it be possible to check this for outages or some other metrics on your side or investigate why would it happen? Since it's worldwide it seems unlikely it's something broken on our side. We are using the standard APNS http2 endpoint with modern support for all RFC features (so everything should work normally).
Mind you, our api might be in a unique position because of the volume of notifications (in the billions per day).
Notifications
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I'm encountering an issue with our legacy Objective-C codebase that uses UIApplicationDelegate.
Here are the steps to reproduce the issue:
Uninstall the application from the device.
Install and launch the application.
As part of the launch event, the client requests notification permission.
The permission prompt is still displayed, even though the client receives a remote notification token (which appears to be a cached one).
I followed the same steps with a sample app built with Swift (SwiftUI), and this issue did not occur. In the Swift app, I consistently received a delegate<didRegisterForRemoteNotificationsWithDeviceToken> call after the user allowed the notification permission.
Could you please provide some insights into why this might be happening with only our client?
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
iOS
Notification Center
User Notifications
Hey Together,
I have seen that critical notifications need to be confirmed by apple to be used.
Sadly I couldn't figure out where to ask for that.
Context: I have a sports tournament app for Beach Handball. There are a couple of Courts like up to 20-25. The main use for that in my app would be to notify first aiders/Medics. Right now they are called in via Speakers or by the referees just writing that into a WhatsApp chat. As this takes a long time and the speakers can be deactivated due to rain, power shortage or even the medics sometimes are not in range to exactly hear the speakers calling them.
To Speed up this process I want them to download the App, Register via an E-Mail or a One Time Code. Now if a referee needs immediate Help from the Medics on their court they can send the Critical alert to the Medics without having to write a chat into a WhatsApp group, to get a call through the speakers 10 minutes later which the medics may not even hear.
A couple of weeks ago we had a player falling on her back/neck/head and they couldn't figure out if she broke her neck or not. Luckily the medics were right next to the court and saw that. but what would happen if they were a couple hundred of meters away and did not notice that? I mean the PA system was off due to a power shortage. someone trying to move her? Risking her death?
And while we are at it we could add those notifications if a team is missing to a court for a game that already should've started. Critical because it is urgent. Those notifications are handled with care.
I'm facing an issue delivering VoIP push notifications to user devices. It's pretty random, sometimes notifications are delivered and sometimes not. I've had a call with the user to understand and narrow down the issue, including testing delivery of pushes to their device token via Push Notification Console as described here: https://developer.apple.com/documentation/usernotifications/testing-notifications-using-the-push-notification-console#4181180.
I asked a user to use Wi-Fi first and tried delivering around 10 pushes via console and 2 of them were lost while the rest was delivered.
I asked a user to use cellular and tried delivering also around 10 pushes and most of them were lost and only few of them were delivered.
Production environment was used to deliver pushes hence I cannot see delivery log and so I have no visibility over a reason why push wasn't delivered.
I wanted to file a code-level support ticket to get help however I need to supply a sample xcode project which in this particular case doesn't make any sense as I'm using Apple's Push Notification Console tool and it delivers pushes in some cases while doesn't deliver it in other cases.
I'm pretty familiar with all potential reasons why push might not be shown on device, including app early crashes, not reporting a call to CallKit etc. => although you never know, I'm pretty sure it's not our case.
How can I get support on investigating specific user device token delivery issues like in the case I described above? I have device token and push console records but it's not clear how to get support on that.
Thank you!
We're experiencing an issue with Apple Push Notification service where APNs continues to return 200 OK responses for device tokens belonging to uninstalled applications.
Issue Details:
When sending push notifications to device tokens.
APNs returns 200 OK responses even for devices where our app was uninstalled more than a month ago
According to documentation(https://developer.apple.com/documentation/usernotifications/handling-notification-responses-from-apns), APNs should return 410 status code with JSON body for invalid tokens
Expected Behavior:
APNs should return 410 status code when device token is no longer valid (app uninstalled)
Thanks in advanced for support
Hey everyone!
I'm trying to develop an app that would need to send periodic notifications (every 20 minutes, for instance) to the user even when the app is not running (but only when the phone is being used). I've been reading through the prior comments and all about not being able to have a timer run in the background in the way I need it to, but I wanted to ask if there's any way around this, or is there truly no way?
If there is no way to do this, I was just now considering another workaround, where I could try getting the time they open their phone, and from there, I schedule local notification for every 20 minutes or so for the entire day, and they keep sending until the phone is turned off, when the rest of the scheduled local notifications are cancelled. Is this possible?
I would also appreciate any other suggests/workarounds for this. Happy to provide any additional details needed!
Thanks!
Topic:
App & System Services
SubTopic:
Notifications
What timezone is used in the CloudKit Push Notification reporting? Meaning, when I see 1,000 Sent Push Notifications on 2/18, is that 2025-02-18 00:00 through 2025-02-18 23:59 PST? EST? UTC?
The metrics shown in [the CloudKit Push Notification reporting] are not lining up with stats from my marketing system, and I'm trying to diagnose.
Also, is there a way to see DELIVERIES or just SENT? I'm looking to learn more about why a Notification would be Sent but not received by the user.
Thank you!
Hi, am facing an issue related to voip push notifications getting delivered 1-2 hours after apns-expiration to 0 and apns-priority to 10.
I had raised a similar post got a reply that it may be due to network delay.
But network delay can cause the delivery of voip push to be delayed only by few seconds or minutes. But in our case voip push is getting delivered hours after the voip call was attempted.
Steps to reproduce:
Put our voip app in background and lock iPhone. As app is put in background, socket connections gets disconnected from server.
Now if a caller makes call to this app, the call should be delivered through voip push.
2) Voip push should ideally be received even if app is in background and iPhone is locked. It is connected to a good wifi network. But it does not receive the voip push.
3) After 1-2 hours user unlocks iPhone and opens voip app. As soon as user opens app, the voip push is received and phone starts ringing.
When User restarted iOS device, after powering on iOS App is not able to get VoIP push notification. If user opens App, immediate VoIP push receiving.
In Normal (App Kill or Background state) everything works as expected. Issue is when device is powered on and immediately( In 1-2 mins) try to call on device.
We are using delegate to show Call to User
public func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void)
we already got access to com.apple.developer.usernotifications.filtering , we have set up this special permission in our app extension entitlement and provision profile. but we are still unable to filter notification by providing empty UNNotificationContent
The APNs Feedback Service domain “feedback.push.apple.com” was deprecated on March 31, 2021, and became unavailable after August 2025 due to domain name resolution failures.
Will this feedback service become available again in the future?
Also, is it possible to use the APNs Feedback Service with a domain different from “feedback.push.apple.com”?
I received an update to the APN root certificate. Testing the connection using MDM.pem to the push environment returned the following error:BadCertificateEnvironment
ERROR
I am developing a system to send VoIP notifications to terminals with APNs.
I understand that the maximum JSON Payload for VoIP is 5kb.
If I want to send VoIP notifications to 3000 terminals, I am considering sending 3000 requests in parallel from the system to the APNs, will the APNs guarantee that the notifications will be sent to each terminal without a significant time lag when receiving 3000 requests simultaneously?
An Application Group with Identifier 'group.com.aaa.aaa.onesignal' is not available. Please enter a different string.
How can I Fix this error? I need to add it in this format.
Topic:
App & System Services
SubTopic:
Notifications
I have an app that pairs with a wearable Bluetooth device that collects users' health data. My web backend sends two push notifications every hour to all app users—one at XX:05 and another at XX:15. The first notification instructs the app to download data from the paired wearable device, while the second prompts the app to upload the downloaded data to the backend server's database.
However, I’ve noticed that many push notifications are not processed by iOS apps, especially at night. Based on Apple's documentation, iOS prioritizes push notifications and may ignore lower-priority ones to conserve battery life.
Is there a way to increase the priority to ensure that more (or all) push notifications are processed?
Would integrating the HealthKit framework help? Currently, I use Firebase Cloud Messaging (FCM) to send push notifications. Additionally, my app falls under the Health & Fitness category. Would changing it to Medical increase priority? P.S. I understand that Apple requires certain certifications for an app to be classified as Medical.
Topic:
App & System Services
SubTopic:
Notifications
We are in the process of transferring our app to a new Apple Developer Organization account. Our app uses the Apple Push Notification service (APNs) with a .p8 authentication key configured on our server to send push notifications.
We would like to confirm:
Once the app transfer is completed, will push notifications continue to work temporarily using the existing .p8 key on our server, until we generate and configure a new .p8 key under the new organization's account?
Understanding this behavior is critical for us to ensure a smooth transition and avoid any disruption in push notification delivery for our users.
Thank you for your guidance and support.
I am developing an application that uses NetworkExtension (Local PUSH function) And VoIP(APNs) PUSH.
Nowadays, I found a problem on this app doesn't handle incoming call of Local PUSH when receiving a Local PUSH after receiving an APNs PUSH.
My confimation result of my app and server log is below.
11:00 AM:
my server(PBX) requests a VoIP(APNs) PUSH notification to the APNs.
But my app does not receive the VoIP(APNs) PUSH.
At this time, my app is running on LAN (Wi-Fi without internet connection), as a result, NetworkExtension was running. so I think this is normal behaviour.
14:55:11 PM:
There is an incoming call from the my server(PBX) via local net, and NetworkExtension calls iOS API(API name is reportIncomingCall).
However, iOS does not call the delegate didReceiveIncomingCallWithUserInfo for the reportIncomingCall.
14:55:11 PM:
At almost the same time, iOS calls the delegate cdidReceiveIncomingPushWithPayload of VoIP PUSH.
(instead of call the delegate didReceiveIncomingCallWithUserInfo for the reportIncomingCall?)
And the content of this VoIP(APNs) PUSH was the incoming call at "11:00 AM".
In other words, the VoIP(APNs) PUSH at 11:00 AM is stuck inside iOS, and at 14:55:11 PM, from NetworkExtension reports it.
I feel there is a problem on iOS doesn't handle incoming call of Local PUSH when receiving a Local PUSH after receiving an VoIP(APNs) PUSH.
Would you tell me Apple's opioion about this?
If this is known problem, Please tell me about it.
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
User Notifications
PushKit
Push To Talk
I'm having trouble displaying the Apple Wallet pass logo on iOS 18 when a notification occurs. It works on iOS 17 but not on iOS 18 (tested on versions 18.1 and 18.3).
I ensured the Wallet pass icon sizes are correct:
icon.png → 29×29
icon@ 2x.png → 58×58
icon@ 3x.png → 87×87
Questions:
Has Apple changed any requirements for displaying Wallet pass logos in iOS 18?
Are there new size, format, or metadata constraints?
I am developing a VoIP service.
Usually, when receiving a VoIP Push, Callkit is exposed immediately after receiving the message and the app is designed to be used.
However, there is an extremely intermittent phenomenon (not well reproduced) where the app does not wake up even when receiving a VoIP Push. And after a long time, the app wakes up and Callkit is activated. (A long time after receiving the call…)
Has anyone experienced the above phenomenon? I wonder if there are any reported parts depending on the OS version. (I have identified that it does not occur in the 17.x version, but it is difficult to guarantee because it occurs extremely intermittently)
The app is not running in the background, but... Could this be happening if there are a lot of pending operations in the background?
I need help urgently
I’m using Appnotic from my server to send notifications for an emergency service, where it is critical that notifications are delivered immediately.
My payload looks like this:
"aps": {
"alert": "Test alert",
"sound": {
"critical": 1,
"name": "sound.wav",
"volume": 0.5
},
"content-available": 1,
"category": "alert"
},
"topic": "com.fireservicerota.FSR-Primary-Alerting",
"custom_payload": {
"id": "11",
"type": "alert",
"incident_id": 23434,
"incident_response_id": 2652343,
"expiration_time": "2024-06-06T16:59:05+01:00"
}
}
I already have the critical alert entitlement and background processing enabled. Everything seems fine when debugging, but I’m experiencing issues:
• Some notifications never arrive
• Around 60% of notifications arrive with noticeable delay
Since this is an emergency app, delivery speed is crucial. What could be causing this inconsistency?