I'm observing that when a silent push notification is sent to our app, is is started up in the background for 30 seconds before being suspended until the app is launched by the user. This causes data to persist from the silent push notification to the user app launch.
I couldn't find documentation on this behavior for silent push notifications, and was wondering if it's possible to have the app terminate after handling the silent push notification. Is there documentation on the general flow of silent push notifications as well?
I'm able to handle the edge cases if the app has to be suspended until user launch, but just want to confirm that this is the expected behavior before I go about handling it this way.
Notifications
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Currently, our company server is using the push service by calling APNS through the p8 certificate.
In this process, our server does not have a CA certificate or SSL certificate in use.
Only the p8 certificate is installed and only performs the role of calling APNS.
If it is used like this, is there no need to update the CA certificate separately?
Or do I have to apply a new SSL certificate and add the CA to it?
Can someone help me plz?
Topic:
App & System Services
SubTopic:
Notifications
Is there anyway that I could use AVAudioSession, AVAudioPlayer or anything similar in Notification Service Extension?
I am trying to implement Audio Playback in the Notification Service Extension to play specific audio file when receiving Notification regardless the app state(foreground, background or killed), but I am not able to activate audio session in Notification Service Extension.
NSError *sessionError = nil;
BOOL success = [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&sessionError];
success = [[AVAudioSession sharedInstance] setActive:YES error:&sessionError];
if (!success) {
NSLog(@"Error activating audio session: %@", sessionError);
}
Below is the error that I got when I am trying to run the code above in Notification Service Extension.
Error Domain=NSOSStatusErrorDomain Code=561015905 "Session activation failed" UserInfo={NSLocalizedDescription=Session activation failed}
We are facing an issue where VoIP notifications are not delivered to a user's device.
If we login with the user credentials on another device the VoIP notifications are being received, if he logs in on his device VoIP notifications are not being received anymore on all devices.
So When the user logs in on the affected device, all devices on that account stop receiving VoIP pushes (including the affected one). Logging out on the affected device restores delivery to other devices.
What could cause this issue?
It's only happening for this user so the configuration and mobile app PushKit code is working as intended.
Facing issue while sending push notification through the application. The APNs certificate is valid.
Below is the error log.
System.AggregateException: One or more errors occurred. ---> PushSharp.Apple.ApnsNotificationException: Apns notification error: 'ConnectionError' ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
at System.Net.Sockets.Socket.EndSend(IAsyncResult asyncResult)
at System.Net.Sockets.NetworkStream.EndWrite(IAsyncResult asyncResult)
--- End of inner exception stack trace ---
at System.Net.Security._SslStream.EndWrite(IAsyncResult asyncResult)
at System.Net.Security.SslStream.EndWrite(IAsyncResult asyncResult)
at System.IO.Stream.<>c.b__53_1(Stream stream, IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory1.FromAsyncTrimPromise1.Complete(TInstance thisRef, Func3 endMethod, IAsyncResult asyncResult, Boolean requiresSynchronization) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at PushSharp.Apple.ApnsConnection.<SendBatch>d__21.MoveNext() --- End of inner exception stack trace --- at PushSharp.Apple.ApnsServiceConnection.<Send>d__2.MoveNext() --- End of inner exception stack trace --- ---> (Inner Exception #0) PushSharp.Apple.ApnsNotificationException: Apns notification error: 'ConnectionError' ---> System.IO.IOException: Unable to write data to the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host at System.Net.Sockets.Socket.EndSend(IAsyncResult asyncResult) at System.Net.Sockets.NetworkStream.EndWrite(IAsyncResult asyncResult) --- End of inner exception stack trace --- at System.Net.Security._SslStream.EndWrite(IAsyncResult asyncResult) at System.Net.Security.SslStream.EndWrite(IAsyncResult asyncResult) at System.IO.Stream.<>c.<BeginEndWriteAsync>b__53_1(Stream stream, IAsyncResult asyncResult) at System.Threading.Tasks.TaskFactory1.FromAsyncTrimPromise1.Complete(TInstance thisRef, Func3 endMethod, IAsyncResult asyncResult, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at PushSharp.Apple.ApnsConnection.d__21.MoveNext()
--- End of inner exception stack trace ---
at PushSharp.Apple.ApnsServiceConnection.d__2.MoveNext()<---
Topic:
App & System Services
SubTopic:
Notifications
SIM toolkit DISPLAY message is not displayed.
Use case:
SIP MESSAGE SMS Deliver (SC to MS) - 200 OK
SIP MESSAGE RP-ERROR (MS->NW):111:Protocol error, unspecified
Concatenated messages (2pcs) are resent over NAS and Deliver reports received from UE.
User is not notified of SIM toolkit message.
Topic:
App & System Services
SubTopic:
Notifications
Hello Apple Developer Community,
We’re building an MDM product (SaaS, multi-tenant). I’d like clarification on the APNs MDM push certificate usage model for service providers (MSPs).
Question:
Is it acceptable for an MDM vendor to use a single APNs MDM push certificate owned by the vendor to manage devices for multiple, independent customer organizations?
Or is it required/recommended that each customer (company) must obtain and use its own APNs MDM push certificate (issued under the customer’s Apple ID) for their tenant?
Why we’re asking:
We understand that many guides show the process where each customer logs into the Apple Push Certificates Portal with their own Apple ID, uploads a CSR provided by the MDM, and then renews yearly.
Practically, for a small team and early-stage deployments, using one vendor-owned certificate across multiple tenants would be simpler.
We want to ensure we’re not violating any policy, terms, or technical requirements (e.g., certificate ownership, topic binding, device token isolation, audit/compliance expectations).
What we need from Apple (or authoritative sources):
An official Apple document or policy that clearly states whether per-customer certificates are mandatory vs strongly recommended for MSP/multi-tenant MDMs.
If per-customer is mandatory, please point to the relevant clause or section.
If a vendor uses a single certificate for multiple organizations, what risks or consequences should we expect (e.g., compliance issues, supportability, potential program violations, off-boarding problems, etc.)?
Context:
We’re sending only MDM wake notifications (standard MDM flow).
We understand certificates expire yearly and must be renewed with the same Apple ID to avoid device re-enrollment.
We want to follow Apple’s best practices while keeping early operations manageable.
Any guidance, links to official documentation, or clarification from Apple engineers/moderators would be greatly appreciated.
Thank you!
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
Apple Business Manager
Device Management
hi i'm testing the new certificate. I'm using the p12 certificate and without doing anything, the sandbox can still be functioned.
I assume the new certificate has already been installed in the default path by linux. so I execute
openssl s_client -connect 17.188.143.34:443 -servername api.sandbox.push.apple.com -verifyCAfile /etc/pki/tls/certs/ca-bundle.crt -showcerts
and i received
CONNECTED(00000003)
depth=2 C = GB, ST = Greater Manchester, L = Salford, O = Comodo CA Limited, CN = AAA Certificate Services
verify return:1
depth=1 CN = Apple Public Server RSA CA 12 - G1, O = Apple Inc., ST = California, C = US
verify return:1
depth=0 C = US, ST = California, O = Apple Inc., CN = api.development.push.apple.com
verify return:1
---
Certificate chain
0 s:/C=US/ST=California/O=Apple Inc./CN=api.development.push.apple.com
i:/CN=Apple Public Server RSA CA 12 - G1/O=Apple Inc./ST=California/C=US
-----BEGIN CERTIFICATE-----
...
so the server indeed has the certificate, is this correct?
The system calendar when showing a calendar event shows a relative timestamp on the notification versus all other apps which have a timestamp of when the notification was sent.
Is there a way to set the timestamp to be relative? I am currently working on a calendar app and we should be able to use the same system that apple uses for its own calendar.
Post about this on stack overflow from someone else a few years ago
There's a list of bug reports:
FB19778882
FB19813796
FB19852724
FB19767262
FB20378888
FB20379383
FB20394663
Me and many other users have issue with push notifications. To reproduce this you should do this steps:
Lock iPhone and make it idle for 10+ minutes;
Send any message from other device via third-party app that uses push notifications (WhatsApp, Telegram and etc.);
After few attempts you can see, that messages don't deliver. They delivers immediately when I unlock iPhone or go to the app.
This bug reproduces on iOS 18.7 and 27.
As I think iPhone goes to deep sleep after 10+ minutes after it locked and don't get push notifications. I've tried everything: many of settings, DFU without backup, but nothing helps to resolve this issue. Pay attention, please, cause this bug is very annoying and present on iOS 18.7 (that is the last for many devices) and latest iOS 26. Thanks!
Hello,
We are currently facing a persistent issue where Apple Push Notifications (APNs) are no longer being delivered to devices. This is not an intermittent problem — push notifications have completely stopped working. We are using PushSharp.Apple (Version 4.0.10.0) to send the notifications.
Current Behavior (Failing):
Every notification request appears to be processed successfully from the server side.
However, the APNs client receives a 0-byte response, and the server closes the connection.
Devices do not receive the notifications at all.
Logs from Current (Failing) State:
APNS-Client[1]: Connected (Batch ID=1)
APNS-Client[1]: Sent Batch, waiting for possible response...
APNS-Client[1]: Received 0 bytes response...
APNS-Client[1]: Server Closed Connection...
APNS-Client[1]: Disconnected (Batch ID=1)
For Reference – Successful Log From Earlier (When Notifications Worked):
APNS-Client[1]: Connected (Batch ID=1)
APNS-Client[1]: Sent Batch, waiting for possible response...
APNS-Client[1]: Received -1 bytes response...
Push Notification Successfully Sent to Device
Any help, suggestions, or experience with similar issues would be greatly appreciated.
Thanks!!!
Hello, i'm facing issues, when trying to integrate push notification feature into my app. the following message is shown and I don't know how to fix it:
ExportArchive "Runner.app" requires a provisioning profile with the push notifications feature
(Encountered error while creating the IPA)
Thankful for any help! Best regards
Topic:
App & System Services
SubTopic:
Notifications
I'm working on implementing Apple Wallet passes using background push notifications.
My server successfully sends the push notification using APNs. The response from the server is HTTP/2 200, and the device receives the push — I can confirm this from device logs.
However, the device logs show the following error:
"Failed to parse JSON message payload for topic "
"Unable to deserialize JSON message payload"
My payload is below 2 payload.
//string payload = "{"aps":{"content-available":1}}";
string payload = JsonConvert.SerializeObject(new
{
aps = new Dictionary<string, object>
{
{ "content-available", 1 }
}
});
string curlArgs = $"-s -o nul -w \"%{{http_code}}\" " +
$"--data-binary \"{payload}\" " +
$"-H \"apns-topic: {bundleId}\" " +
$"-H \"apns-push-type: background\" " +
$"-H \"apns-priority: 5\" " +
$"-H \"content-type: application/json\" " +
$"-H \"authorization: bearer {jwt}\" " +
$"--http2 https://api.push.apple.com/3/device/{token}";
I’ve confirmed that:
The device has the Wallet pass installed.
The apns-topic header is set to my passTypeIdentifier.
The apns-push-type is background and apns-priority is 5.
Steps to Reproduce:
Install Wallet pass on iOS device.
Send background push to device using the above payload.
Observe the device logs using Console.app or log stream.
See error: unable to deserialize JSON message payload.
Is there a specific payload format expected for Wallet passes? Or any additional fields required in the push payload to avoid this deserialization error?
I've got a problem with compatibility with Swift6 in iOS app that I have no idea how to sort it out.
That is an extract from my main app file
@MainActor
@main struct LangpadApp: App {
...
@State private var notificationDataProvider = NotificationDataProvider()
@UIApplicationDelegateAdaptor(NotificationServiceDelegate.self) var notificationServiceDelegate
var body: some Scene {
WindowGroup {
TabView(selection: $tabSelection) {
...
}
.onChange(of: notificationDataProvider.dateId) { oldValue, newValue in
if !notificationDataProvider.dateId.isEmpty {
tabSelection = 4
}
}
}
}
init() {
notificationServiceDelegate.notificationDataProvider = notificationDataProvider
}
}
and the following code shows other classes
@MainActor
final class NotificationServiceDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate
{
var notificationDataProvider: NotificationDataProvider?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -&gt; Bool {
UNUserNotificationCenter.current().delegate = self
return true
}
func setDateId(dateId: String) {
if let notificationDataProvider = notificationDataProvider {
notificationDataProvider.dateId = dateId
}
}
nonisolated func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse) async {
// After user pressed notification
let content = response.notification.request.content
if let dateId = content.userInfo["dateId"] as? String {
await MainActor.run {
setDateId(dateId: dateId)
}
}
}
nonisolated func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification) async -&gt; UNNotificationPresentationOptions {
// Before notification is to be shown
return [.sound, .badge, .banner, .list]
}
}
@Observable
final public class NotificationDataProvider : Sendable {
public var dateId = ""
}
I have set Strict Concurrency Checking to 'Complete.' The issue I'm facing is related to the delegate class method, which is invoked after the user presses the notification.
Current state causes crash after pressing notification. If I remove "nonisolated" keyword it works fine but I get the following warning
Non-sendable type 'UNNotificationResponse' in parameter of the protocol requirement satisfied by main actor-isolated instance method 'userNotificationCenter(_:didReceive:)' cannot cross actor boundary; this is an error in the Swift 6 language mode
I have no idea how to make it Swift6 compatible. Does anyone have any clues?
I'm working with a deeplink I have to implement to my app. The deeplink is working because in some cases i will explain later the method is being executed. So when I tap the deeplink with a deeplink-tester-web I detect if the url is which I want and, if it's the case, i post a notification to NotificationCenter with a string parameter I need.
Case 1. I tap the deeplink when the view controller with the addObserver method is at the background with the app itself. It works (the only case)
Case 2. The app is closed so the deeplink opens the app directly in that view controller (the method is no being called event if the notification is there) Why?
Case 3. The app is at the background but in another screen. When I tap the deeplink and, after returning to the app, travel to my viewController the method is not called when the ViewController becomes visible. Why?
I've not seen anything in the documentation that can help me and i cannot access to the array of observers because the API does not allow that
Thanks. Any help will be appreciate.
Code:
When the deeplink is tapped the app delegate method that manages universal links call to this code when the url is a specific one
@objc func handleRecommendedOffer(offerId: String) {
NotificationCenter.default.post(name: .deeplinkRecommendedOfferNotification, object: nil, userInfo: ["offerId": offerId])
}
In my viewcontroller viewDidLoad (i've tried also viewWillAppear too):
NotificationCenter.default.addObserver(self, selector: #selector(goToDetail(notification:)), name: .deeplinkRecommendedOfferNotification, object: nil)
@objc private func goToDetail(notification: Notification) {
if let userInfo = notification.userInfo, let offerId = userInfo["offerId"] as? String {
showLoading()
getOfferViewModel.getOfferDetail(id: offerId)
}
}
Topic:
App & System Services
SubTopic:
Notifications
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 ?
Hi,
We have a use case where our app needs to send repeated push notifications (both normal and critical alerts) to inform the user about a critical device state and grab their attention.
Since iOS doesn’t allow us to schedule local notifications beyond 30 seconds, I need to send multiple pushes from the server side.
My questions are:
Is there any documented limit on how many push notifications can be sent back-to-back before Apple starts throttling or restricting them?
Are critical alerts treated differently from normal notifications in terms of delivery restrictions or frequency limits?
Is there a recommended approach for handling scenarios where repeated urgent notifications are necessary to keep the user informed?
I want to make sure I’m following Apple’s guidelines and not risking rejection during review.
Background:
The project was created in Xcode 5, then recreated in new Xcode. Before migration, push notifications worked without issues, after migration device token stopped being extracted.
Problem:
iOS app registers for push notifications, but didRegisterForRemoteNotificationsWithDeviceToken or didFailToRegisterForRemoteNotificationsWithError methods are not being called.
Current situation:
App is registered for push notifications (isRegisteredForRemoteNotifications = true)
Notification permissions are granted
Entitlements are configured correctly (aps-environment: development)
Bundle ID: com.autoserviceonline.app
Team: BUSINESSVISION COMPANY, TOO (NS3FSG45V7)
But callback methods are not being called
What I've already tried:
Deleted and recreated all App IDs in Apple Developer Portal
Cleared Xcode cache and derived data
Created new APNs certificates and provisioning profiles
Removed "ghost" certificate from Keychain Access
Problem persists
Additional information:
Also noticed that Push Notifications Console opens non-existent project "BV.TestSwiftData" with Personal Team instead of current corporate App ID com.autoserviceonline.app. These issues might be related to project migration from old Xcode.
Request:
Why iOS doesn't call callback methods for device token, although registration was successful?
Hi,
there is a issue that iOS background NFC scanning will only provide a notification result, It need user click to enter my APP, can I have any method to enter my APP directly without user action ?
The iOS documentation shows notification actions buttons with the text center aligned: https://developer.apple.com/documentation/usernotifications/declaring-your-actionable-notification-types
But there's no apparent way for an app to control this. The buttons are controlled and rendered by the system and the text is always left aligned.
Is there some way to get the text center aligned?