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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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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90
Mar ’25
CarPlay Driving Task notification press handling
We're trying to add simple notifications to our CarPlay integration that should open certain template when pressed, but the issue is that when pressing this notification on CarPlay screen nothing is invoked in the code (presumably didReceive should be invoked). All works fine with the same notification but pressed on the iPhone screen - didReceive is invoked properly. How should I handle the action when push notification is pressed on CarPlay screen?
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203
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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148
Mar ’25
Issue with Live Activity Update - "The device token doesn't match the specified topic"
Hi! I am encountering an issue when attempting to send a test notification to update a live activity. The request is failing with the following error: { "code": 400, "message": "bad-request", "reason": "The device token doesn't match the specified topic.", "requestUuid": "3ed3fc0c-9c57-4d67-8ae8-cbabe0579b10" } I have verified that all device tokens and app identifiers are correct, but the error persists. Could you please assist in identifying the root cause of this issue?
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Jan ’25
Error when running Live Activities
Hi there, This is my first time posting here. I'm working on small projects on Swift and SwiftUI now and then. I'm currently trying to develop an application that gets some bus arrival data using API and displaying them with live activities. The thing is that I'm not quite sure how frequently updates work yet. Still trying to figure out if I can update the live activity everytime the data coming right from the API changes or use push notification updates each minute passing by, but that is another thread that I'm going to focus with more details. Everytime i'm trying to deploy my app on my iphone or a simulator this error keeps popping up and I can't figure out why. Any ideas? Let me know if you need any snippet of my code. SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}." UserInfo={NSLocalizedDescription=Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}., NSUnderlyingError=0xb1281d830 {Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}}} Domain: DTXMessage Code: 1 User Info: { DVTErrorCreationDateKey = "2023-10-02 21:06:04 +0000"; } -- System Information macOS Version 14.0 (Build 23A344) Xcode 15.0 (22265) (Build 15A240d) Timestamp: 2023-10-03T00:06:04+03:00
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2.2k
Feb ’25
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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131
Apr ’25
RESCIND_CONSENT notification not delivered in Sandbox environment
I am currently testing the Declared Age Range / Parental Consent flow in the Sandbox environment, and I am experiencing an issue where the RESCIND_CONSENT App Store Server Notification is not being delivered to my server. 🔍 Test Environment iOS version: iOS 26.2 (Sandbox environment) App Store Server Notifications: Sandbox environment 🔄 Test Scenario App Settings > Developer > Sign in with a Sandbox account Launch the app In App Settings > Developer > Sandbox Account > Management > Revoke App Consent, enter the app’s Bundle ID, tap the Revoke Consent button, and confirm that the revocation completion popup message is displayed Check whether App Store Server Notifications are received by the server Confirm that the RESCIND_CONSENT notification is not received by the server ✅ Expected Result The App Store Server sends a RESCIND_CONSENT notification to the Sandbox endpoint The notification payload includes appTransactionId The server can block app access based on the corresponding appTransactionId ❌ Actual Result No RESCIND_CONSENT notification is received in the Sandbox environment ❓ Questions Is this behavior an intended limitation of the Sandbox environment, or is it a known issue or bug? Is it possible that RESCIND_CONSENT notifications will only be delivered starting January 1, 2026? Additionally, when a RESCIND_CONSENT server notification is received, I currently update my database with the appTransactionId and the registration date. When a minor attempts to access the app, I check the latest appTransactionId status, and if the most recent state indicates consent has been revoked, I block app access and prompt the user to request parental consent again using PermissionKit.
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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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249
Nov ’25
Can I enable push notifications in an iOS app built from a web app URL using PWA Builder?
Hi all, I have a React web app that we use as a Progressive Web App (PWA). We currently: Use PWA Builder to package it for Android and iOS Host the app on a secure HTTPS URL Use Firebase Cloud Messaging (FCM) for push notifications (working on Android) However, on iOS, we are unable to get push notifications to work. I understand that PWAs on iOS have limited push support (Safari only, and not through WebView). So I explored using Capacitor, but: Capacitor can load a server.url pointing to our hosted app (great for reuse), but push notifications don’t work If we build the web app locally (npm run build) and embed it in the native iOS shell via Capacitor, push works We would prefer not to fully merge our authentication and main app UIs if avoidable Questions: Is there any approved way to enable push notifications in an iOS .ipa built from a hosted web app (URL) using PWA Builder? If not, is embedding the web assets locally the only Apple-approved way to get push support? Are there any best practices or native plugin recommendations (e.g., APNs or FCM) for handling push notifications in iOS app? Thanks in advance for any guidance. 🙏 Let me know if more technical details would help.
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Jun ’25
All Apple Push Notification Architecture
I've built an iOS & Watch OS app using Sign in with Apple & CloudKit exclusively. I'm now wanting to implement Push Notifications. I understand that I need a server to trigger the push notifications (I guess I could spool up a Node server somewhere or use Firebase), but I'd really like to not use any non-Apple backend services. Am I correct in understanding that I can do this with Push Notifications Console, or do I still need a separate backend?
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406
Feb ’25
APNS always returning "discarded as device was offline"
Approx Dec 13th 2025 til now (Dec 29th) I noticed my APNS dropped off to nothing daily. When I try to send APNS alerts on the developer site tool it always returns "discarded as device was offline" for multiple devices which I know are online. When I try pushing through my VPS (as I always have without any code changes for months) I get status codes of 400 and 403 mostly and a few 200's without it delivering also. I created a new sandbox certificate just in case it was that but still no luck, I get the same results. Ive checked for any firewall issues and I see the following on my VPS: nslookup gateway.push.apple.com Server: 1.1.1.1 Address: 1.1.1.1#53 ** server can't find gateway.push.apple.com: NXDOMAIN This seems like a second issue but not the primary issue that the portal is reporting. Any ideas what to check? Im at a loss as to why its not working at all through apples test notification portal on my developer account. It seems thats the initial issue I need to solve. Thank you for any ideas/help
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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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Apr ’25
About Delay issues with iPhone VoIP applications
We are encountering the following issue with our VoIP application for iPhone, published on the App Store, and would appreciate your guidance on possible countermeasures. The VoIP application (callee side) utilizes a Wi-Fi network. The sequence leading to the issue is as follows: VoIP App (callee): Launches iPhone (callee): Locks (e.g., by short-pressing the power button) VoIP App (callee): Transitions to a suspended state VoIP App (caller): Initiates a VoIP call VoIP App (callee): Receives a local push notification VoIP App (callee): Answers the incoming call VoIP App (callee): Executes performAnswerCallAction() After this, the VoIP App (callee) uses "NSTimer scheduledTimerWithTimeInterval" to manage internal processing timing. However, the processing sometimes takes longer than the specified waiting time. Specifically, delays of several seconds can occur. We understood that if the user is interacting with the screen and both the iPhone and the VoIP app are in an active state, the VoIP app's processing would not be delayed. However, can significant delays (several seconds) in application processing still occur even when the iPhone is in an active state (i.e., the user is interacting with the screen)?"
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Dec ’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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137
Apr ’25
Notification Service Extension not getting invoked on macOS
I’m testing remote push notifications on macOS, and although notifications are received and displayed correctly, my Notification Service Extension (NSE) never gets invoked. The extension is properly added as a target in the same app, uses the UNNotificationServiceExtension class, and implements both didReceive(_:withContentHandler:) and serviceExtensionTimeWillExpire(). I’ve also set "mutable-content": 1 in the APNS payload, similar to how it works on iOS — where the same code correctly triggers the NSE. On macOS, however, there’s no sign that the extension process starts or the delegate methods are called. import UserNotifications class NotificationService: UNNotificationServiceExtension { override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) { let modified = (request.content.mutableCopy() as? UNMutableNotificationContent) modified?.title = "[Modified] " + (modified?.title ?? "") contentHandler(modified ?? request.content) } override func serviceExtensionTimeWillExpire() { // Called if the extension times out before finishing } } And the payload used for testing: { "aps": { "alert": { "title": "Meeting Reminder", "body": "Join the weekly sync call" }, "mutable-content": 1 }, "MEETING_ORGANIZER": "Alex Johnson" } Despite all correct setup steps, the NSE never triggers on macOS (while working fine on iOS). Can anyone confirm whether UNNotificationServiceExtension is fully supported for remote notifications on macOS, or if additional configuration or entitlement is needed?
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Nov ’25
Badge Number Persists When Re-Installing Application
I have been working on adding a badge number count to my app, but have run into a really weird edge case. If I have a badge number on my app, delete the application and then re-install it, the badge number still persists on the app icon until I first open the app. I tried looking to see if there is a lifecycle method that is triggered upon uninstalling an app as well as if there is a specific userDefaults attribute to check in order to clear the badge, but I can't find any clear solutions. Does anyone know of a fix to this issue?
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302
Feb ’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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251
Dec ’25
Action Required: Apple Push Notification Service Server Certificate Update
Hi Apple Team, we reiceved the following message. Hello, We’re reaching out with a final reminder that the Certification Authority (CA) for Apple Push Notification service (APNs) is changing. APNs updated the server certificates in sandbox on January 21, 2025. APNs production server certificates will be updated on February 24, 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. Our web service sends token-based push notifications directly to the Apple Push server. For testing: https://api.development.push.apple.com:443 In production: https://api.push.apple.com:443 We have never installed any certificates for using APNs. Do we need to take any action regarding this message, or can we ignore it?
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3.1k
Feb ’25