Notifications

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Learn about the technical aspects of notification delivery on device, including notification types, priorities, and notification center management.

Notifications Documentation

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Start live activity with push notification problem
Hey there, i implemented live activity in my app and iam trying to start the live activity from push notification, updates works fine even when the app is in background but starting the activity creating issue mostly on background and kill mode when i check the delivery of live activity on cloudkit console it says stored for device power considerations. anyone having the same issue ?
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692
Feb ’25
Provisioning Profile Missing Push Notification Entitlement (com.apple.developer.push-notifications) Despite Being Enabled
I'm running into an issue during the iOS build process for my app, and I'm hoping someone can point me in the right direction. ❗ The Problem When attempting to archive the app via EAS Build (Expo), the build fails with the following error: `Provisioning profile "HCF_AppStore_ProvisioningProfile" doesn't include the com.apple.developer.push-notifications entitlement. Profile qualification is using entitlement definitions that may be out of date. Connect to network to update.` What I’ve Already Done: Enabled Push Notifications capability for the App ID (com.rsmco.helpcreatefamilies) in the Apple Developer portal. Deleted and regenerated the App Store Provisioning Profile after enabling the capability. Confirmed the new profile is associated with the correct App ID and Distribution Certificate. Uploaded the new profile to EAS (Expo) and rebuilt the app. Yet the error persists during the Xcode archive step with Exit code 65. Additional Info: Provisioning Profile Name: HCF_AppStore_ProvisioningProfile App ID: com.rsmco.helpcreatefamilies Team: Reproductive Sciences Management Company, LLC Workflow: Expo EAS Build Capability causing issue: com.apple.developer.push-notifications
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152
Jul ’25
PushKit with CallKit - CallKit not shown when app is in background or terminated
Hi team, I am developing VOIP feature using PushKit and CallKit but CallKit is not show when app in background or terminate state, now in foreground state I can call reportNewIncomingCall from pushRegistry-didReceiveIncomingPushWith and it's work as expected but the problem is in background or terminate state it's not my setup: PushKit is configured In Signing & Capabilities I add background modes (Remote notifications and Voice over IP) In info.plist I add <key>UIBackgroundModes</key> <array> <string>voip</string> I'm not sure should I create new VOIP Certificate but now I can receive message notification normally. Any help or suggestions would be greatly appreciated Thank you
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146
Jul ’25
Apple Push Notification service server certificate
Do we need this new certificate "SHA-2 Root : USERTrust RSA Certification Authority certificate" if we are using token based authentication with APNs? We are signing the JWT with the private Auth key? Or is the new certificate needed on top of this? We are doing something like this: Dictionary<string, object> payload = new Dictionary<string, object>() { { "iss", teamId }, // Apple Developer Team ID { "iat", unixTimestamp } // Issued-at time }; Dictionary<string, object> header = new Dictionary<string, object>() { { "alg", "ES256" }, { "kid", keyId } // Key ID from Apple Developer portal }; string token = JWT.Encode(payload, privateKey, JwsAlgorithm.ES256, header);
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752
Jan ’25
PKPushRegistry not running in background or when app is killed
self.pushRegistry = [[PKPushRegistry alloc] initWithQueue:dispatch_get_main_queue()]; self.pushRegistry.delegate = self; self.pushRegistry.desiredPushTypes = [NSSet setWithObject:PKPushTypeVoIP]; //处理接收到的VoIP推送 (void)pushRegistry:(PKPushRegistry *)registry didReceiveIncomingPushWithPayload:(PKPushPayload *)payload forType:(PKPushType)type withCompletionHandler:(void(^)(void))completion then we send message from our server or from apple's cloud service: https://icloud.developer.apple.com/dashboard/notifications website services: when app is in foreground,withCompletionHandler wil be called correctly,but when app is in background or has killed ,withCompletionHandler not be called!!! the background fetch、voice over ip is checked in signing & capabilities tabs why?why?why?why?why?why?why?why?why?
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398
Mar ’25
Notification Service Extension and the main thread
Question, if I am writing async code in the notification service extension, I understand it terminates after 30 seconds. If I want to wait until these async methods finish before calling the content handler, I believe an option I have is to use dispatch groups. However I am open to other solutions if there are better options. My question is, if I use dispatch groups, is there any issue in using the main queue here? Or does the main thread not make sense to use in the context of the NSE? dispatch_group_notify(group, dispatch_get_main_queue(), ^{ if (self.contentHandler) { self.contentHandler(self.bestAttemptContent); } }); Or is it recommended to instead use a different queue in the NSE? dispatch_queue_t nseQueue = dispatch_queue_create("com.blah.blah.nse.queue", DISPATCH_QUEUE_SERIAL); dispatch_group_notify(group, dispatch_get_global_queue(QOS_CLASS_(SOMETHING), 0), ^{ ... }); OR am I over thinking this? :) Thanks ahead of time, relatively new to iOS so just looking to learn/understand better.
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284
Jun ’25
invalid_client when invoking https://appleid.apple.com/auth/token
sending the following POST request: ---- HTTP REQUEST ---- POST https://appleid.apple.com/auth/token Headers: Content-Type: application/x-www-form-urlencoded Body: client_id=au.com.thejlrguy.businesschat&client_secret=eyJhbGciOiJFUzI1NiIsImtpZCI6IktLUDc4MkhGVTcifQ.eyJ...QeDn7ug&grant_type=client_credentials&scope=https%3A%2F%2Fappleid.apple.com Getting the below error: {"error":"invalid_client"} The private key used to sign the JWT was created 24 hours ago.
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91
May ’25
iOS blocks 100% notification for app in the background
I created my app. One of its functionality is receive remote notification in the background (it receives it from Firebase Cloud Messaging via APNS) and replies with device location data. This is "boat tracking and alarm" type of app. It worked well both on my iPhone (where I use the same Apple ID as on developer's account) and on my son's iPad (different Apple ID). After the first review, when app was rejected with some remarks, background remote notifications completely stopped working on my iPhone. It looks like my iPhone put the app in permanent sleep. It never receives the background notifications. It receives them though in 2 case: when I open the app (it is no longer in background) when location is changed (it wakes app in the background). But the app should also respond when the device is stable at the position (I use both: precise and Significant Location Change. In the latter case changes are very rare). Btw, I scheduled a background task, not location, and it also never gets executed, so this workaround does not work. I describe it, so any Apple engineer does not get confused, verifying that these remote notifications reach the device. NO, they never get through when app is in the background (THIS IS THE PROBLEM), not that they are never delivered (the are, in the foreground). And the proof that it is not a problem with the app or remote notification construction is: they work on another drives (iPad) with no issues. Sometimes they are very delayed, sometimes almost instant. But usually they work. they worked the same way on my iPhone (with my developer's Apple ID) before the first rejection, and I haven't messed with messaging functionality since then. Now I am over with the last hope I had. I finally got my app release in App Store. I hoped official version would release some blockade my iOS put on my app. But unfortunately not. Official version works the same way as the test one. It works fine (receiving notifications in the background) on my son's iPad and it does not receive any background notification on my iPhone (100% block rate). Can anyone help me how can I reset my apps limits, the iOS created for my app? It seems that the rejection was a sparkle here - this is just a hint. I can provide any system logs for Apple engineers from both devices (iPhone and iPad) if you would like to check this case.
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345
Sep ’25
Push Notification Icon Not Updated on Some Devices After App Icon Change
Hi, We recently updated our app icon, but the push notification icon has not been updated on some devices. It still shows the old icon on: • iPhone 16 Pro — iOS 26 • iPhone 14 — iOS 26 • iPad Pro 11” (M4) — iOS 18.6.2 • iPhone 16 Plus — iOS 18.5 After restarting these devices, the push notification icon is refreshed and displays the new version correctly. Could you advise how we can ensure the push notification icon updates properly on all affected devices without requiring users to restart? Thank you.
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218
Nov ’25
How can you tick between live activities?
I have been watching the following moment from wwdc (Design dynamic Live Activities): https://developer.apple.com/videos/play/wwdc2023/10194/?time=728 It suggest that you should 'tick' between multiple live activities of your app: When you want to show multiple sessions for your app going on at once, consider ticking between the display of them to continue to give users an eye on everything that’s going on. How can I tick between them? More specifically how can I do that when my app is in the background?
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229
Apr ’25
APNS notifications of apns-push-type pushtotalk sometimes stop arriving after switching networks
PLATFORM AND VERSION: iOS Development environment: Other: .net MAUI with vscode Run-time configuration: iOS 18.1.1 DESCRIPTION OF PROBLEM APNS notifications of apns-push-type pushtotalk sometimes stop arriving after switching networks. STEPS TO REPRODUCE We have created a simple app which can be used to deminstrate this issue. When you launch the app it displays the APNS token which you can then use fromn the Apple Push Console to manually send it PTT push notifications. https://github.com/trampster/PttPushNotificationIssue On an iPhone SE (we havn't been able to reproduce on our iPhone 11) Start the APP to register for the APNS push notifications Turn off the WiFi wait for 5 seconds Attempt a push to the app manually using the Push Notifications Console (this should fail, which is fine) Turn on Cellular and wait for it to connect Attempt to push to the app manually using the Push Notifications Console -> This fails, and all attempts to send an pushtotalk push notifications fail until the we switch network again. Send a push while offline before connecting to the new network seems to make it happen more often but hard to tell for sure. The results of the failed push in the console look like this: Delivery LogLast updated: 30/01/25, 16:45:06 GMT+13 Refresh 30 Jan 2025, 16:45:03.661 GMT+13 received by APNS Server 30 Jan 2025, 16:45:03.662 GMT+13 discarded as device was offline The device is actually very much online. Switching networks again oftern makes things come right. But it doesn't seem to come right by itself. We can't respond to network changes and do anything as the whole point of using push-to-talk push notifications is to wake up the app when in the background to answer a call, this means we are not running and therefore cannot respond to network changes to try to work arround this issue.
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590
Apr ’25
Darwin Notification vs polling every 5 seconds.
There is one xpc server and two xpc clients (clientA and clientB). When clientB sends a message to the xpc server, xpc server fills a value for dummyString in it's memory and I want clientA to know that dummyString got updated and also the new value for this dummyString. The updation of dummyString is not something that happens often. Two options we tried: Have a timer for 5 seconds in clientA and keep polling and request for the value of this dummyString. Setup a darwin notification in server that gets posted whenever dummyString is being updated. clientA receives requests for dummyString value only when it observes a notification being posted. Which of these two approaches causes the least delay for clientA to know the updated value of dummyString?
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400
Feb ’25
getDeliveredNotifications does not return notifications triggered by UNLocationNotificationTrigger
I am trying to retrieve delivered notifications using UNUserNotificationCenter.getDeliveredNotifications(completionHandler:), but I have encountered an issue: Notifications triggered by UNTimeIntervalNotificationTrigger or UNCalendarNotificationTrigger appear in the delivered list. However, notifications triggered by UNLocationNotificationTrigger do not appear in the list. Here is the code I use to fetch delivered notifications: UNUserNotificationCenter.current().getDeliveredNotifications { notifications in for notification in notifications { print("Received notification: \(notification.request.identifier)") } } The notification is scheduled as follows: let center = UNUserNotificationCenter.current() let content = UNMutableNotificationContent() content.title = "Test Notification" content.body = "This is a location-based notification." content.sound = .default let coordinate = CLLocationCoordinate2D(latitude: 37.7749, longitude: -122.4194) // Example coordinates let region = CLCircularRegion(center: coordinate, radius: 100, identifier: "TestRegion") region.notifyOnEntry = true region.notifyOnExit = false let trigger = UNLocationNotificationTrigger(region: region, repeats: false) let request = UNNotificationRequest(identifier: "LocationTest", content: content, trigger: trigger) center.add(request) { error in if let error = error { print("Error adding notification: \(error.localizedDescription)") } } Why does getDeliveredNotifications not return notifications that were triggered using UNLocationNotificationTrigger? How can I retrieve such notifications after they have been delivered?
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114
Mar ’25
track PushNotification delivery
Hello Team, We are working on a requirement where the business wants to track the delivery of push notifications on iOS devices. Specifically, they want to capture the moment when the device receives the notification and it appears as a badge in the Notification Center—regardless of whether the app is in the background or not—and then send that delivery status back to APNs. We have explored multiple approaches, but so far, we are only able to capture events when the user interacts with the notification banner. We would like to understand: Is it technically possible to send an event to APNs or another service upon receipt of the notification on the device without requiring user interaction? Any guidance or recommendations would be greatly appreciated.
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115
May ’25
CXProvider.reportNewIncomingVoIPPushPayload resulting in NSXPCConnectionInterrupted
We have just been granted access to the com.apple.developer.usernotifications.filtering entitlement, and are following the documented steps for handled E2EE VOIP notifications listed here: https://developer.apple.com/documentation/callkit/sending-end-to-end-encrypted-voip-calls 1 - A user initiates a VoIP call on their app. Their app then sends an encrypted VoIP call request to your server. We do exactly this, Alice calls Bob from her app, sending a notification to our servers. 2 - Your server sends the encrypted data to the receiver’s device using a regular remote notification. Be sure to set the apns-push-type header field to alert. We do exactly this, our server send on a notification to APNS with the apns-push-type header set to alert, destined for Bob. 3 - On the receiver’s device, the notification service extension processes the incoming notification and decrypts it. If it’s an incoming VoIP call, the extension calls reportNewIncomingVoIPPushPayload(_:completion:) to initiate the call. It then silences the push notification (see com.apple.developer.usernotifications.filtering). I try to do exactly this. The notification is received by the NSE on Bob's device, which decrypts it and then notices it is a VOIP call from Alice. It prepares a dictionaryPayload with the decrypted data and then calls reportNewIncomingVoIPPushPayload(_:) async throws. This throws an NSXPCConnectionInterrupted error, which when logged shows as below: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.callkit.notificationserviceextension.voip" UserInfo={NSDebugDescription=connection to service named com.apple.callkit.notificationserviceextension.voip} The only difference I can see to the documentation is that I am working in an asynchronous context so am using the asynchronous version of the method, but I don't imagine this should cause an issue? I then supress the notification as documented and this works correctly. Does anyone have any ideas why I am getting this error when calling reportNewIncomingVoIPPushPayload(_:) async throws?
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505
Jan ’25
LiveActivity start via APNs not working
I am trying to issue the "start" APNs push notification to start a live activity for my iOS app. The notification appears to send correctly, there is no error message, but the live activity never appears for any of my users (users are in TestFlight). In addition to issuing the APNs commands from my server, I have also tried using the CloudKit Push Notification Console to manually generate a "start" notification. It submits correctly but the live activity never starts. I have also checked the Console app to watch the device logs and see if iOS is rejecting/throttling the live activity but I don't see any activity related to the start message at all. Here are some details: App bundle ID: `com.penzu.moodmoji` APNs topic: `com.penzu.moodmoji.push-type.liveactivity` APNs push type: `liveactivity` Recent apns-id: `7b633309-b7fd-4163-b620-776efa04f315` APNs payload: { "aps": { "timestamp": 1742651625, "event": "start", "content-state": { "totalDays": 7, "currentDay": 2, "progress": 0.29, "status": "ACTIVE", "reportReady": false }, "attributes-type": "GoalActivityAttributes", "attributes": { "totalDays": 7, "currentDay": 2, "progress": 0.29, "status": "ACTIVE", "reportReady": false }, "alert": { "title": "It's day 2!", "body": "Don't forget to record every time you feel anxious today." } } } I can confirm that LiveActivities started by the iOS app with ActivityKit work correctly, and the app does appear to be receiving pushToStartTokenUpdates: struct GoalActivityAttributes: ActivityAttributes, Sendable { struct ContentState: Codable & Hashable, Sendable { let totalDays: Int let currentDay: Int let progress: Double let status: String let reportReady: Bool } let goal: SimpleGoal } for await nextStartToken in Activity<GoalActivityAttributes>.pushToStartTokenUpdates { // send nextStartToken to server... } The app I'm testing with is in TestFlight, using the production APNs environment.
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137
Mar ’25
Wake up the app when you receive a notification in the background
Hello, I am encountering an issue with maintaining socket connections in iOS applications that need to remain active while in background mode. I am developing an application that requires maintaining an active socket connection in the background to receive real-time data. However, I've noticed that the socket connection is terminated as soon as the app enters background mode, which affects the intended functionality of my app. I understand that there are restrictions on background activities in iOS to preserve battery life and system resources. However, I would like to know what approach Apple recommends for handling this type of requirement. Are there specific APIs or configurations I should consider to ensure the socket remains active in the background? I would greatly appreciate any guidance or resources you could provide. I am eager to ensure that my app complies with Apple's guidelines and delivers the best possible experience for users.
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190
Feb ’25
Periodic, seemingly global APNS disruptions
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).
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181
Mar ’25
The app will be wake up from killed status by silent notification or not?
The app will be wake up from killed status by silent notification or not? This is a question for years, from my test. It will wake up. Here the wake up means it will call the "didFinishLaunchingWithOptions" method. But we can not see the app in the "recent apps" list after switching home-screen up. So any Apple dev can give me a detailed explain for this?
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436
Mar ’25