I am sending push notifications to the app with critical alerts, but there is a significant delay. If the number of target devices is 1000 or less, notifications will be received normally within a few seconds to a minute. Once the number of target devices exceeds 1000, some devices will arrive quickly (normally within a few seconds to 1 minute) and others will arrive late (3 minutes to 15 minutes, divided into hundreds of items). In severe cases, notifications to more than 80% of devices will be delayed. Example: If you send 3000 notifications at once, 　1 minute: Notify 400 items 　5 minutes: Notify 1000 items 　10 minutes: Notify 1000 items 　13 minutes: Notify 600 items *The timing of 5 minutes, 10 minutes, and 13 minutes changes every time and is not at regular intervals. We understand that according to the push notification specifications, sending several thousand messages at once is not a problem. Please let me know if there is a rule, such as sending 1000 items at a time, in order to deliver quickly and with minimal delay.

System Information: iPhone 13, iOS 17.6.1 Steps to reproduce: Open my app, causing it to register for an APNS token Kill my app to make sure it is not in the foreground Send a push notification with a payload similar to this: {"aps":{"alert":{"title":"My App Name","body":"10:24am 🚀🚀🚀"}},"price":19,"clock":175846989,"time":1731001868.379526} And the following attributes: Expiry: (Date that is 7 days from now) Type: Alert Priority: High (10) Payload Size: 141 bytes The notification appears in the Notification Center, as expected Turn on Airplane Mode (WiFi=off) Wait between 60 seconds - 8 hours (varies) Send the same notification payload/attributes again Wait between 60 seconds - 8 hours (varies) Turn on WiFi Wait 1-30 minutes (varies) Expected behavior: The notification appears in the Notification Center Actual behavior: Push notifications from other apps immediately appear in the Notification Center Roughly 30% of the time: The push notification(s) from my app never arrive, even after waiting 30 minutes Roughly 70% of the time: The notification appears in the notification center, and everything works fine Thoughts: Expiry must be set correctly because I've seen my notifications get queued and then delivered (correctly) in the CloudKit Push Notification tool. Identical notifications (payload, APNS headers, etc.) are also sent to other devices at the same time. They receive the notifications just fine. It must not be my iPhone's notification Settings, because notifications appear correctly when online I've tried restarting the iPhone, it did not fix this issue So it seems it must be an unexpected behavior in APNS or something broken with my specific phone? Not sure what else I could possibly do to make sure the notifications arrive. This breaks the entire experience of my app. I need to be able to notify users of incoming messages so they do not miss them.

hello, i'm not able to activate Live activities from app id configuration. Do i miss something ? thanks for your help

Anne has two phone numbers, work and personal. Beth saved both phone numbers for Anne under one contact profile. When Beth sends a text to Anne's work phone, it is received on Anne's personal phone instead. We have verified only one phone number is set up under Messages settings, signed out of messages, restarted the phones. Any other fixes or suggestions?

We have an authenticator app (like Google Authenticator & Microsoft Authenticator) with a push notification feature. From past 2 weeks we are not receiving push notifications in the app. Any changes made recently in Apple Firebase which would impact the push notification functionality.

Hi) we have two ios apps in same Firebase project - with different apple bundle ids. One of them had connected APNS with Firebase and everything had worked perfectly - push notifications where delivered every time. But recently we occationaly put same APNS to other our Firebase's ios app and as result we lost all pushes - on both app. After deletion APNS from both of them and reconnecting APNS to app with proper apple bundle id push notifications didn't start to work. could you please suggest what we are suppose to do to resolve issue?

We submitted firewall request to below destination subnets and we still see connection refused to port 5223. Please advise why are we seeing connection refused and should we need 5223 port. Subnets - 17.249.0.0/16, 17.252.0.0/16, 17.57.144.0/22, 17.188.128.0/18, 17.188.20.0/23

Hello, I am developing an application using VoIP Push and CallKit. I have a question: Starting with iOS 13, I understand that under the VoIP Push policy, if reportNewIncomingCall is not called continuously, the VoIP Push may be blocked. Is there a way to determine if the device has been blocked? I am curious whether PKPushRegistry itself is unable to receive pushes or if reportNewIncomingCall returns an error when it is blocked. If push notifications are not being received, what should I do to resume receiving them? Thank you.

I'm encountering an unexpected issue in my app since upgrading to iOS 18, and I’m wondering if anyone has found a solution or workaround. The Problem: The userNotificationCenter(:willPresent:withCompletionHandler:) method is being triggered twice whenever a push notification arrives while the app is in the foreground. Additionally, application(:didReceiveRemoteNotification:fetchCompletionHandler:) is also being triggered once during the same notification event. This redundant triggering is causing inconsistent behavior and double-processing of notifications, which is obviously problematic for my use case. The exact flow looks like this: userNotificationCenter(:willPresent:withCompletionHandler:) — called twice. application(:didReceiveRemoteNotification:fetchCompletionHandler:) — called once. Has anyone else experienced this behavior specifically in iOS 18? Is this a known issue with the new version? This issue is affecting how we handle notifications in a major way, and I’m hoping there's a more fundamental fix or explanation for this behavior in iOS 18.

I send APNs notifications to my devices with the CloudKit dashboard. I test with two devices; Device with Silent Push Working Successfully: iOS version 16.5.1 (c), Model iPhone Xs Silent Push Failed Device: iOS version 15.3.1, Model iPhone Xr Normal alert notifications work successfully on both devices. But I can't see any log in my project even though silent push is sent successfully on one device. What I've Checked: content-available is set to 1. My app is not in kill state, it is in foreground or pending in the background. When I send simple notifications, I can see logs in my swift project and notifications on physical devices without any problem. No, my certificate has not expired and if there was a problem with it, I would not be able to see the normal notifications. My phone is not in power saving mode and the “Background App Refresh” option is turned on in the app's settings. Both devices in charging state. App capabilities: Background Modes is enabled with Remote Notifications, Background Fetch, Background Processing. CloudKit Dashboard After Sending Silent Push: My AppDelegate Class In Swift Project: import SwiftUI import UIKit import UserNotifications class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in if granted { DispatchQueue.main.async { UIApplication.shared.registerForRemoteNotifications() } } } return true } func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { let tokenParts = deviceToken.map { data in String(format: "%02.2hhx", data) } let token = tokenParts.joined() print("Device Token: \(token)") } func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) { print("Failed to register: \(error)") } func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { logInfo("Received Push Notification: \(userInfo)") if let aps = userInfo["aps"] as? [String: AnyObject], aps["content-available"] as? Int == 1 { logInfo("This is a silent push notification") //DO SOME WORK completionHandler(.newData) } completionHandler(.newData) } }

Please find below a complete app example. It has a button, when you press it, a local notification is created. However, the UnNotificationCenter.delegate is called twice, and I can't understand why. I am trying to move my project from Objective-C to Swift, and my similar code there doesn't get called twice, so I'm confused. Can anybody shine a light on this? Pointers appreciated. App: @main struct NotifTestApp: App { init() { UNUserNotificationCenter.current().delegate = NotificationReceiveHandler.shared configureUserNotifications() } var body: some Scene { WindowGroup { ContentView() } } private func configureUserNotifications() { UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { granted, error in if granted { print("Notification permission granted.") } else if let error = error { print("Error requesting notification permissions: \(error)") } } } } class NotificationReceiveHandler: NSObject, UNUserNotificationCenterDelegate { static let shared = NotificationReceiveHandler() //>> THIS IS CALLED TWICE WHEN I PRESS THE BUTTON func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) { NSLog(">>> Will present notification!") completionHandler([.sound]) } } ///THE UI struct ContentView: View { var body: some View { VStack { Text("👾") .imageScale(.large) .foregroundStyle(.tint) Text("Notification test!") Text("When i press the button, will present is called twice!!").font(.footnote) .padding(10) Button("Create Notification") { createNotification( message: "This is a test notification", header: "Test Notification", category: "TEST_CATEGORY", playSound: true, dictionary: nil, imageName: nil) } .padding() .background(Color.blue) .foregroundColor(.white) .cornerRadius(8) } .padding() } } #Preview { ContentView() } private func createNotification(message: String, header: String, category: String, playSound: Bool = true, dictionary: NSDictionary? = nil, imageName: String? = nil) { let content = UNMutableNotificationContent() content.title = header content.body = message content.categoryIdentifier = category content.badge = NSNumber(value: 0) if let imageName = imageName, let imageURL = Bundle.main.url(forResource: imageName, withExtension: "png") { do { let attachment = try UNNotificationAttachment(identifier: "image", url: imageURL, options: nil) content.attachments = [attachment] } catch { print("Error creating notification attachment: \(error)") } } content.sound = playSound ? UNNotificationSound(named: UNNotificationSoundName("event.aiff")) : nil if let infoDict = dictionary { content.userInfo = infoDict as! [AnyHashable: Any] } let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: nil) UNUserNotificationCenter.current().add(request, withCompletionHandler: nil) }

Hello Apple Developer Team, I am facing an issue with remote notifications in my iOS app. When the app is in a terminated (kill) state, notifications are successfully received by the device, but none of the app's handlers (like _firebaseMessagingBackgroundHandler in Flutter) are invoked. This is impacting our ability to process silent notifications or perform background tasks reliably when the app is not running. Steps to reproduce: Send a remote notification with content-available: 1 in the payload. Confirm the notification is received by the device while the app is in kill mode. Observe that no background or foreground notification methods are triggered in the app. Expected Behavior: The app should invoke the background handler to process the notification payload, even in a terminated state. Observed Behavior: The notification is delivered to the device, but no app-level processing occurs because none of the methods are triggered. Can you please confirm if this is the intended behavior due to iOS limitations, or if there is a configuration or alternative solution to allow background handlers to execute in such scenarios? Any guidance or clarification would be highly appreciated. Thank you!

We have modified the program as we received in the previous(thread 764479) issue. Our program works very well and the notification problem has been almost solved in the test. Then, we tested it in the user's environment. At that time, one of the three iPhones stopped receiving notifications. After 10 minutes, VoIP notifications were received again. This device received PUSH notifications even when VoIP notifications did not come. We must explain to the user why this incident occurred. We would like to know if these three notifications were sent correctly to the device. Also, is there any other way for us to deal with this other than improving the network? [APNS LIST]Nov. 20th could not receive(failed) 15:06:13　5793987C-D1A4-811F-917F-87DD7F5083B3 15:07:09　667E0A2F-43B5-37FC-2F2A-45A6C27EFC34 15:19:31　1353DF78-519E-B1DC-82B7-8B890E59FE37 received（success） 15:04:09　19CC1937-533A-9AF4-9472-41C839E461D7 15:35:00　CD23AC57-6EC7-4523-941F-B103EDB4DEFB

If a server is sending a push to an app, then how can it know whether it should be sending the push using the Apple sandbox push server, or the production server? If the app is on the app store or testflight then it needs to be using the sandbox server, but if the app is being run via XCode interactively as devs are developing/testing then the push needs to be sent via the sandbox server. But the server itself has no idea if the app was installed via Testflight/app store/XCode/ or a development .ipa. So the server can't know how to send the push. The app has to send the push token to the server anyway, so the app could inform the server which environment it should be sent over. But then how can the app detect that itself? A naive answer is to use #ifdef DEBUG to detect this, but that is incorrect. Which environment a push should be sent over is not correlated with that. For example an app could be being run with a debug scheme or a release scheme, but in both cases if the app is installed/running via xcode then the push environment has to be the sandbox. So my question is, is there a way the app can detect which push environment a push should be sent over in order than it can instruct the server accordingly?

I have opened the Push Notification and the Broadcast Capability at developer Capabilities, but when I call the api https://api-manage-broadcast.sandbox.push.apple.com:2195/1/apps/already change to my Identifiers/channels, I always got the "TopicMismatch". Did I set something wrong somewhere?

We at Anywayanyday (Apple ID 424980622) utilize push notification technology for our users to enhance customer scenarios. Recently (after the launch of OS 18 update, end of September '24) we started to observe that our customers were not receiving notifications on devices with OS 18+. In their systems we see that sending a message via transport has been done, but no notifications are reaching the client. In the system it is visible that the device token is fresh and working. Could you please tell us what steps we should take to fix the functionality of push notifications? Thanks

We've had reports that since upgrading to iOS 18.1.1, wallet pass notifications (on the lock screen) now display "Nearby" instead of the Departure time,. Has anyone else experienced this issue? There doesn't seem to be any documentation around it. Thanks

With the relevantDate field deprecated for Apple passes as of 18.1 https://developer.apple.com/documentation/passkit_apple_pay_and_wallet/pkpass/1618776-relevantdate, boarding pass notifications on the lock screen no longer seem to display the departure time. Is there a way to show this again? Would semantic tags (Semantics.currentDepartureDate) or the new PkPass.releaseDates field help?

I need to decode a Base64-encoded receipt from an In-App Purchase and extract the transaction ID from it. However, I want to avoid using the verifyReceipt endpoint since it is deprecated. Can anyone guide me on how to achieve this manually? Are there any specific libraries, steps, or code samples I should follow to parse the receipt data and retrieve the transaction ID? Any help or insights would be greatly appreciated!

I have to device, one is iOS 17.0.3, the other is iOS 18.1.1. In iOS 17.0.3, everything just goes fine, but iOS 18.1.1 'didRegisterForRemoteNotificationsWithDeviceToken' and 'didFailToRegisterForRemoteNotificationsWithError' never called. I am sure I already called 'registerForRemoteNotifications' method in Appdelegate, Singning & Capabilities's Remote notification is also checked. I use Firebase, also add FirebaseAppDelegateProxyEnabled = NO in my info.plist. Someone can tell me why? Think u for ur answer.