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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Received a warning from Apple regarding updating APNs ceritificate.
"As we announced in October, the Certification Authority (CA) for Apple Push Notification service (APNs) is changing. APNs will update the server certificates in sandbox on January 20, 2025, and in production on x date, 2025. To continue using APNs without interruption, you’ll need to update your application’s Trust Store to include the new server certificate: SHA-2 Root : USERTrust RSA Certification Authority certificate. To ensure a smooth transition and avoid push notification delivery failures, please make sure that both old and new server certificates are included in the Trust Store before the cut-off date for each of your application servers that connect to sandbox and production. At this time, you don’t need to update the APNs SSL provider certificates issued to you by Apple." As we are using firebase for receiving notifications and azure notification hub, I read that there is nothing we as developers need to do and will be handled by the providers right?
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522
Feb ’25
Notification Service Extension Not Triggering for Push Notifications on iOS
I have integrated a Notification Service Extension in my app to handle rich push notifications with images. The issue occurs on iOS 15 and iOS 18 devices—while the text content of the notification shows, the image is not displayed. However, the rich push notification works fine on other iOS versions (e.g. iOS 16, iOS 17) I’ve tried the following steps: Verified App Groups are the same for both the main app and the extension. Checked the "mutable-content" flag in the notification payload. Added a print statement in the NotificationService.swift to check if it’s running. It doesn’t appear in the Xcode logs. I’ve tried using Attach to Process in Xcode, but nothing happens. The app is installed on a real device, and I’m testing with push notifications when the app is in the background.
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169
Mar ’25
[App Store Server Notifications] ONE_TIME_CHARGE production release...
Dear Apple! During WWDC24 you announced that ONE_TIME_CHARGE notification is available on the sandbox environment and will be available "it will be available in production later this year" - it's March 2025 and there is still no production release of this feature. Could you share some timeline and plans for when we can expect that feature deployed to production? Thanks in advance!
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86
May ’25
Reliability and latency for Appsore server side notifications v2
Hi Team, We are building oru subscrption app and want to rely on server side purchase / subscription related notifications. We went through https://developer.apple.com/documentation/appstoreservernotifications/enabling-app-store-server-notifications We wanted to understand the reliability and latency for server side notifciations provided by Appstore.
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28
4w
Weather Notifications
I'm strugling about the way how to code notifications for my weather aplication. I use data from my server that receives weather changing values from my own weather station and want to notify user of my app when eg strong wind will blow or temperature go under eg 3℃ etc. The weather station has 8 sensors so there is sometimes a lot of data changing in particular minute that i set to parse data from server and notify user about it. But the notifications only works only when app is on and couple minutes after locking display. So please what could i use strategy for the app to works even when the app sleeps ?
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83
Mar ’25
Why iOS App Upgrades Fail to Apply Background Mode Settings
We have a question regarding iOS app configuration and the Remote notifications background mode. During our testing, we observed: *When enabling or disabling Signing & Capabilities > Background Modes > Remote notifications, the change does not take effect on devices that already have the app installed. *The app continues to behave according to the old configuration. *Only after uninstalling the app and reinstalling it from the App Store do the new settings take effect (for example, whether the app can be woken up by silent push). *We also tested updating the app with a new version number (App Store upgrade flow), but the new settings still did not apply. Our questions are: 1.Is there any way to make iOS re-read the updated Signing & Capabilities (Background Modes) settings without requiring a full uninstall/reinstall? 2.Is it expected behavior that even an App Store upgrade with a new version number will not apply these changes? thanks!
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77
Sep ’25
Incoming call notifications problems
Good day We developed a simple swift code to make the device ringing when a certain type of notifications arrives from our backend. This is the code: let phoneNumber = CXHandle(type: .generic, value: (self.userInfoForPluginCall!["data"] as! [String:Any]) ["caller"] as! String) callUpdate.remoteHandle = phoneNumber let configuration = CXProviderConfiguration(localizedName: "Trec Conf") configuration.maximumCallGroups = 1 configuration.maximumCallsPerCallGroup = 1 configuration.supportsVideo = false configuration.supportedHandleTypes = [.generic] configuration.iconTemplateImageData = UIImage(named: "callkit-icon")?.pngData() let callProvider = CXProvider(configuration: configuration) callProvider.setDelegate(self, queue: nil) callProvider.reportNewIncomingCall(with: callUUID!, update: callUpdate, completion: {error in}) We are noticing some problems on the call screen: on certain devices (iOS 18.4RC) the normal call screen appears and the user can answer or decline the call, on other devices (iOS 18.3, especially with dynamic island) only a phone icon appears in the upper right corner and no possibility to answer or deny call. Any idea on why we are encountering that behavior? Thanks
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140
Mar ’25
LiveCommunicationKit
We are implementing a camera intercom calling feature using VoIP Push notifications (PushKit) and LiveCommunicationKit (iOS 17.4+). The app works correctly when running in foreground or background, but fails when the app is completely terminated (killed by user or system). After accepting the call from the system call UI, the app launches but gets stuck on the launch screen and cannot navigate to our custom intercom interface. Environment iOS Version: iOS 17.4+ (testing on latest iOS versions) Xcode Version: Latest version Device: iPhone (tested on multiple devices) Programming Languages: Objective-C + Swift (mixed project) Frameworks Used: PushKit, LiveCommunicationKit (iOS 17.4+) App State When Issue Occurs: Completely terminated/killed Problem Description Expected vs Actual Behavior App State Behavior Foreground ✅ VoIP push → System call UI → User accepts → Navigate to intercom → Works Background ✅ VoIP push → System call UI → User accepts → Navigate to intercom → Works Terminated ❌ VoIP push → System call UI → User accepts → App launches but stuck on splash screen → Cannot navigate Root Issues When app is terminated and user accepts the call: Data Loss: pendingNotificationData stored in memory is lost when app is killed and relaunched Timing Issue: conversationManager(_:perform:) delegate method is called before homeViewController is initialized Lifecycle Confusion: App initialization sequence when launched from terminated state via VoIP push is unclear Code Flow VoIP Push Received (app terminated): func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void) { let notificationDict = NotificationDataDecode.dataDecode(payloadDict) as? [AnyHashable: Any] let isAppActive = UIApplication.shared.applicationState == .active // Store in memory (PROBLEM: lost when app is killed) pendingNotificationData = isAppActive ? nil : notificationDict if !isAppActive { // Report to LCK try await conversationManager.reportNewIncomingConversation(uuid: uuid, update: update) } completion() } User Accepts Call: func conversationManager(_ manager: ConversationManager, perform action: ConversationAction) { if let joinAction = action as? JoinConversationAction { // PROBLEM: pendingNotificationData is nil (lost) // PROBLEM: homeViewController might not be initialized yet if let pendingData = pendingNotificationData { ModelManager.share().homeViewController.gotoCallNotificationView(pendingData) } joinAction.fulfill(dateConnected: Date()) } } Note: When user taps "Accept" on system UI, LiveCommunicationKit calls conversationManager(_:perform:) delegate method, NOT a manual acceptCall method. Questions for Apple Support App Lifecycle: When VoIP push is received and app is terminated, what is the exact lifecycle? Does app launch in background first, then transition to foreground when user accepts? What is the timing of application:didFinishLaunchingWithOptions: vs pushRegistry:didReceiveIncomingPushWith: vs conversationManager(_:perform:)? State Persistence: What is the recommended way to persist VoIP push data when app is terminated? Should we use UserDefaults, NSKeyedArchiver, or another mechanism? Is there a recommended pattern for this scenario? Initialization Timing: When conversationManager(_:perform:) is called with JoinConversationAction after app launch from terminated state, what is the timing relative to app initialization? Is homeViewController guaranteed to be ready, or should we implement a waiting/retry mechanism? Navigation Pattern: What is the recommended way to navigate to a specific view controller when app is launched from terminated state? Should we: Handle it in application:didFinishLaunchingWithOptions: with launch options? Handle it in conversationManager(_:perform:) delegate method? Use a notification/observer pattern to wait for initialization? Completion Handler: In pushRegistry:didReceiveIncomingPushWith, we call completion() immediately after starting async reportNewIncomingConversation task. Is this correct, or should we wait for the task to complete when app is terminated? Best Practices: Is there a recommended pattern or sample code for integrating LiveCommunicationKit with VoIP push when app is terminated? What are the best practices for handling app state persistence and navigation in this scenario? Attempted Solutions Storing pendingNotificationData in memory → Failed: Data lost when app is killed Checking UIApplication.shared.applicationState → Failed: Doesn't reflect true state during launch Calling gotoCallNotificationView in conversationManager(_:perform:) → Failed: homeViewController not ready Additional Information Singleton pattern: LCKCallManagerSwift, ModelManager homeViewController accessed via ModelManager.share().homeViewController Mixed Objective-C and Swift architecture conversationManager(_:perform:) is called synchronously and must call joinAction.fulfill() or joinAction.fail() Requested Help We need guidance on: Correct app lifecycle handling when VoIP push is received in terminated state How to persist VoIP push data across app launches How to ensure app initialization is complete before navigating Best practices for integrating LiveCommunicationKit with VoIP push when app is terminated Thank you for your assistance!
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30
2w
Persist and deliver scheduled local notifications after app update
I have an app available for download in the Apple App Store. The app sends local notifications, which are scheduled at the user's request once the app launches. I've recently learned that when new versions of my app are deployed and automatically update on the user's device, previously scheduled local notifications are deleted. Given my app design, the user can re-launch the app in order to re-schedule the local notifications. This is a bit of a problem, though, because part of my app's value is in reminding the user - so after requesting a local notification, the user expects to receive a local notification and then launch the app, not the other way around. Given this, I've been exploring solutions so my app continues to function as expected (including delivering local notifications, even if the app hasn't yet been launched) after an app update. I've explored .backgroundTasks(), but they too are apparently deleted with an app update and require the app to be re-launched first to work as expected. Another solution might be to use push notifications instead of local notifications, but that seems like a very involved solution if I'm just looking to make sure that local notifications persist after an app update. I can't be the only person to have this dilemma - am I overlooking a simple solution?
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373
Jan ’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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2w
App Store Server Notification Issue
Hello, I am writing this because the behavior of the App Store Server Notification that our server receives is problematic in the Sandbox environment. I have two questions in total. When purchasing a Free Trial subscription, after receiving the SUBSCRIBED / INITAL_BUY Notification, DID_RENEW should be sent when it expires, but DID_FAIL_TO_RENEW/GRACE_PERIOD is sent. The EXPIRE Notification is sent after the subscription expires or DID_CHANGE_RENEWAL_STATUS/AUTO_RENEW_DISABLED is sent, but it does not arrive. The first problem is that I recently heard that automatic payments after a free trial require the user's consent via email. Is this the reason? If so, I am curious about how I can test it in the Sandbox environment. Is the second problem a bug?
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126
Apr ’25
Push Notifications Failing - Xcode shows "Untitled" Certificates & "No App ID" for Push Console after Org Account Migration
Hi everyone, I recently migrated my individual Apple Developer account to an Organization account for my company "". My Team ID remained the same. I'm now facing persistent issues with code signing and push notifications for my iOS app (Bundle ID: com.).
 Current Problems:
 "Untitled" Certificates in Xcode: When I go to Xcode -> Settings -> Accounts -> [My Apple ID] -> Select "" Team -> "Manage Certificates...", a number of my newly created Apple Development and Apple Distribution certificates are listed древ "Untitled". Some older ones are "Revoked". (See attached screenshot if possible).
 "No App ID" for Push Notifications Console: In my app target's "Signing & Capabilities" tab, I've added the "Push Notifications" capability. However, when I click the info button to open the "Push Notifications Console", it states: "no app IDs: Register an App ID with the Push Notifications capability enabled to use the Push Notifications console." This is despite the fact that the Push Notifications capability IS enabled for my App ID com. in the Developer Portal, and I've configured an APNs Auth Key (.p8) for it.
 Push Notifications Not Received (from Backend): While I can successfully send a test push notification directly from the Firebase Console to my device's FCM token, notifications triggered by my backend (Firebase Cloud Functions writing to a Firestore collection, which then triggers another function to send via FCM) are not being delivered to iOS devices. (Android seems to be working more reliably now).
 Setup: Using an APNs Authentication Key (.p8) linked to my Organization Team ID in Firebase Cloud Messaging. Main App ID com. has "Push Notifications" capability enabled. Notification Service Extension com..ImageNotification also has its App ID and Provisioning Profile set up for the Organization team. Created new Development and Distribution certificates and Provisioning Profiles specifically for the Organization team. Using "Automatically manage signing" in Xcode with the Organization team selected for both the main app target and the extension target.
 Troubleshooting Done: Revoked old/problematic certificates and profiles. Recreated CSRs and new Development/Distribution certificates under the Organization team multiple times. Recreated Provisioning Profiles. Cleaned Derived Data in Xcode. Ensured Bundle Identifiers are consistent. Verified APNs Auth Key details (Key ID, Team ID) in Firebase.
 I suspect there's a fundamental issue with how Xcode is recognizing or linking the signing assets for my Organization team after the account type change, despite the Team ID being the same. The "Untitled" certificates are a major red flag.
 Has anyone encountered similar issues, particularly the "Untitled" certificates or the "No App ID" message for the Push Console, after an account migration or when working with Organization accounts? Any insights on how to resolve this would be greatly appreciated.
 Thanks,
Benni
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116
May ’25
APNs returning successful response for a token from an app that was uninstalled more than a month ago
We are observing an weird behaviour where a user uninstalled the app back in February (more than a month ago) but APNs is still accepting push notifications are returning success responses. We know that using APNs response codes for uninstall tracking is not reliable and that Apple will use fuzzy schedule to invalidate tokens. However, showing successful responses for month+ old tokens seems a bit misleading and results in wasted token processing for both us and Apple. Could you please confirm that invalidation (or fuzzy schedule) could take more than months to invalidate tokens on the APNs side? Is that expected or is this a bug somewhere?
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227
Nov ’25
Regarding "Overview of app transfer"
My iPhone VoIP app, which I'm developing, uses Apple Push Notification service (APNs). I have a question regarding the following statement found in "[Overview of app transfer > Apps using push notifications]" Overview of app transfer You must manually reestablish push notification services if transferring an app that uses the Apple Push Notifications service (APNs). The recipient must create a new client SSL certificate using their developer account, as associated client SSL certificates, TLS certificates, and authentication tokens aren’t transferred. Question Let's say the recipient of the app transfer creates a "new SSL certificates, TLS certificates, and authentication tokens." Afterward, we need to verify that the Apple Push Notification service (APNs) works correctly when combining the transferred app with this "new SSL certificates, TLS certificates, and authentication tokens." However, until the recipient finishes verifying that it works correctly, the transferor want to keep the app available for download as before and be able to use the Apple Push Notification service. Is this possible? More specifically, can the recipient test the app to be transferred on TestFlight "before the transfer is completed"? I want to combine it with the "new SSL certificates, TLS certificates, and authentication tokens." and test it on TestFlight. Reading "[Initiate an app transfer]," it mentions the existence of a "Pending App Transfer" status. During this "Pending App Transfer" status, can the recipient test the app on TestFlight? Initiate an app transfer After you initiate the transfer, the app stays in its previous status, with the Pending App Transfer status added, until the recipient accepts it or the transfer expires after 60 days. Also, if there are any documents describing these procedures, I would appreciate it if you could share them. Thank you very much.
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217
1w
AlarmKit alarms do not fire when foregrounded app is in landscape
Hello! When setting an alarm in an AlarmKit app, the alarm will not fire properly/reliably (the alert presentation is not shown) while the device has an app foregrounded in the landscape orientation. This behaviour has been present since the betas, however until the first party Reminders app showed the behaviour in the iOS 26.2 beta I suspected the issue was in my own code. The behaviour is exhibited when scheduling alarms in several AlarmKit apps: The Reminders app The AlarmKit WWDC Demo Project My own AlarmKit app However alarms scheduled by the stock Clock app do not seem to exhibit the behaviour. Minimal repro with first party app: Be using iOS 26.2 beta Open Reminders app Create an urgent reminder for a time in the not too distant future Open Mail.app Change to landscape orientation Wait for the fire time Observe the phone vibrates at the correct time but no alarm is fired Drag the notifications pane down, observe the LiveActivity has been started Change to portrait orientation Observe alarm fires I have noticed this behaviour from the AlarmKit apps mentioned while foregrounding other apps besides Mail, both first and third party: Photos YouTube Netflix The behaviour does not seem to occur when the foregrounded app is restricted to portrait mode, no matter the actual orientation of the device. In the case of my own app I have tried a multitude of ideas to get it to work reliably, getting alarms to fire in landscape is very intermittent at best and most often works after a fresh reboot. I've submitted a Feedback for the Reminders app: FB20956492. Any advice or suggestions would be appreciated!
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155
Nov ’25
Push Notification Sound and Notification Service Extension When App is Killed
Dear Apple Developer Support, I am currently developing an iOS application that uses push notifications with custom .caf audio and a Notification Service Extension. I have implemented the extension to download and play a dynamic sound file from a remote sound_url. It works well when the app is in the foreground or background. However, when the app is force-closed (swiped up from multitasking), the Notification Service Extension does not seem to run. As a result, the custom sound is not downloaded or played. I would like to confirm: Is it possible to trigger the Notification Service Extension when the app is killed? If not, what is the correct way to play a custom .caf sound when the app is terminated? Should I preload and save the .caf file in App Group storage and reference it by name in the sound field? Are there any best practices or limitations regarding push notification customization when the app is killed? I appreciate your help in clarifying this issue. Thank you very much! Best regards, Phan Van Tung
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95
Apr ’25
Apple CarPlay Notifications - Tap action handler
I am developing a CarPlay driving tasks app and is able to display push notifications on CarPlay. I am looking at a way to get a tap action handler for push notifications on CarPlay such that when a user taps the notification and by default the app opens, but I want to present a CPInformationTemplate with data corresponding to the tapped notification.
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96
Oct ’25
/The notifications/test request was successful, but there were no notification messages from the Apple Store
requestUrl:https://api.storekit-sandbox.itunes.apple.com/inApps/v1/notifications/test method:Post responseCode:200 testNotificationToken:06beba6c-7587-44f6-a4b8-f12b11db6061_1745832671126 Request environment: ①APP from: TestFlight ②Apple acount : Sandbox account ③Apple originalTransactionId: 2000000907966801 App Store sandbox server notification configuration is fine(https://*.com/v2/apple_refund_notify), I have tried many times, but have not received any notification from Apple. Is this API not working?
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133
Apr ’25