The APP was not awakened by system after start a liveactivity and the liveactivity has showed on lock screen.so the updatetoken wont send to our inner server and the liveactivity can not update,often like this,but sometimes it can work.
it makes me confuse,and i don't know how should i can do,because the liveactivity like a black box,i can not analyse the data link.for example ,inner server send a start liveactivity,but it can not accept a updatetoken unless the user lanuch APP.
i hope the liveactivity can start and update on background. And i have developed it as described in the document.
Hope to get your help,thank you very much.
Notifications
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Hello all 👋
We're developing an app for families with neurodivergent members (primarily autistic children) and have run into a critical reliability issue with silent push notifications that breaks core functionality.
Our current implementation:
When a caretaker updates the person's daily routine/schedule in our system, we send a silent push notification to the user's device. The app wakes, connects to our server, downloads the updated schedule, and creates/updates local notifications for upcoming activities.
The problem:
Because the app is rarely/never directly interacted with by the end user (the child doesn't open the app - caregivers configure it on their behalf), silent push notifications get progressively throttled and eventually stop being delivered entirely. This means schedule changes made by caregivers never reach the device, breaking the app's core value proposition. Uninstalling and reinstalling doesn't reset the throttling state
Questions:
Is there any way to reset or mitigate throttling for devices that legitimately need background updates but have low or no user interaction? This is an accessibility use case where the end user (child) doesn't interact with the app, but the app must reliably receive updates. Would switching to regular (visible) push notifications avoid this throttling even if the app is not interacted with?
We already have Critical Alerts entitlement, but for regular updates we're worried that the "CRITICAL ALERT" banner will be too upsetting for the child. Is there any exception process for accessibility apps to change the way Critical Alerts are presented?
For neurodivergent individuals, predictable routines are essential. When schedule updates don't reach their device, it can cause significant distress. This is a genuine accessibility need, not a "nice-to-have" feature.
Any guidance from Apple engineers or developers who've solved similar challenges would be greatly appreciated.
Thank you!
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
iOS
Accessibility
User Notifications
I’m using Appnotic from my server to send notifications for an emergency service, where it is critical that notifications are delivered immediately.
My payload looks like this:
"aps": {
"alert": "Test alert",
"sound": {
"critical": 1,
"name": "sound.wav",
"volume": 0.5
},
"content-available": 1,
"category": "alert"
},
"topic": "com.fireservicerota.FSR-Primary-Alerting",
"custom_payload": {
"id": "11",
"type": "alert",
"incident_id": 23434,
"incident_response_id": 2652343,
"expiration_time": "2024-06-06T16:59:05+01:00"
}
}
I already have the critical alert entitlement and background processing enabled. Everything seems fine when debugging, but I’m experiencing issues:
• Some notifications never arrive
• Around 60% of notifications arrive with noticeable delay
Since this is an emergency app, delivery speed is crucial. What could be causing this inconsistency?
we already got access to com.apple.developer.usernotifications.filtering , we have set up this special permission in our app extension entitlement and provision profile. but we are still unable to filter notification by providing empty UNNotificationContent
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?
when I implementation the UNUserNotificationCenterDelegate
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
var status = ""
if (UIApplication.shared.applicationState == .active) {
status = "active"
} else if (UIApplication.shared.applicationState == .background) {
status = "background"
} else if (UIApplication.shared.applicationState == .inactive) {
status = "inactive"
}
completionHandler()
}
I find that UIApplication.shared.applicationState == .background this case can not execute when application is in background。
why applicationState is inactive not background?
Hello everyone,
Our team is currently developing a PTT (Push-to-Talk) application using the officially recommended PushToTalk framework. During development, we've encountered a point of confusion regarding the application's behavior after being force-quit by the user.
Based on our understanding of the PushToTalk framework documentation (https://developer.apple.com/documentation/pushtotalk/creating-a-push-to-talk-app/) and the PTChannelManager session restoration mechanism, when a user manually kills the app from the background (App Switcher), the current PTT session (the system session managed by PTChannelManager) should terminate. Subsequent pushtotalk type pushes sent via APNS, without an active session, appear to be silently discarded by the system and cannot wake the app for processing (similar to what Kevin Elliott DTS mentioned in https://developer.apple.com/forums/thread/760506 Point D). This seems to prevent reliable PTT message reception in our app after a user force quits.
However, we've observed that some popular PTT applications on the market (e.g., TenTen) appear to successfully receive and play PTT voice messages from friends even after the user has performed a force-quit action. This behavior seems inconsistent with our test results and understanding based on the standard framework, posing a challenge for us in providing similar reliability using standard methods.
This naturally leads us to wonder how this capability is achieved. We've reviewed developer forums and are aware of the historical existence of a PTT-specific com.apple.developer.pushkit.unrestricted-voip entitlement, which allowed PushKit usage for PTT without CallKit binding. While Apple DTS engineers have repeatedly stated this entitlement is being deprecated and urged migration to the PushToTalk framework (e.g., https://developer.apple.com/forums/thread/763289), we are curious if the observed "wake-after-force-quit" capability might be related to some apps potentially still utilizing this outgoing special entitlement. Alternatively, is there perhaps a mechanism within the standard PushToTalk framework that allows wake-up after force quit that we haven't fully grasped?
Therefore, we'd like to ask fellow developers for clarification and discussion:
When using the standard PushToTalk framework, have others confirmed that the app indeed cannot be woken up by pushtotalk pushes after being force-quit by the user? Is this the expected behavior?
Has anyone successfully achieved a TenTen-like experience (reliable PTT reception after force quit) using only the standard PushToTalk framework? If so, could you share key implementation insights or areas to focus on? (e.g., Is it related to specific usage patterns of the restorationDelegate?)
How do you view this potential discrepancy between standard framework capabilities and the behavior exhibited by some apps? What considerations does this bring to development planning and user experience design (especially when users might have expectations set by the "always-on" behavior of other apps)?
Are there any best practices or specific techniques when using PTChannelManager session management and restoration that maximize PTT message reliability (especially after the app is terminated by the system in the background), while still adhering to the framework's design principles (like user awareness of the session via UI)? [For instance, another developer raised challenges related to PTT framework restrictions here: https://developer.apple.com/forums/thread/773981]
We hope this discussion can help clarify our understanding of the framework and gather community best practices for building reliable PTT functionality while adhering to Apple's guidelines.
Thanks for any insights or shared experiences!
I have multiple app ids that are registered with Push Notification, however they do not hsow up in the Push Notification Console for testing.
I’m building a standalone Apple Watch smart alarm app that should trigger alarms on the watch in response to Bluetooth or internet events.
This means the app operates in the background and attempts to trigger an alarm when such an event occurs. As far as I know, the appropriate API for this is WKExtendedRuntimeSession.notifyUserWithHaptic:repeatHandler.
However, I can’t seem to start an extended runtime session while the app is in the background. I’m getting the following error:
-[WKExtendedRuntimeSession _invalidationReasonAndDelegateCallbackErrorForError:outCallbackError:]:729:
WKExtendedRuntimeSession hit internal error.
Error Domain=com.apple.CarouselServices.SessionErrorDomain
Code=17 "startSession cannot be called on a scheduled session"
UserInfo={NSLocalizedDescription=startSession cannot be called on a scheduled session}
Calling notifyUserWithHaptic directly also similarly fails.
It seems notifyUserWithHaptic is intended to be scheduled during a foreground session to trigger at a later time, rather than being called ad hoc from a background context.
Is there any way to create a proper alarm view on the Apple Watch from a background execution context?
Hi team,
We've observed that for all background notifications (where content-available set to true, https://developer.apple.com/documentation/usernotifications/pushing-background-updates-to-your-app#Create-a-background-notification),
we never received any response with error string "Unregistered". This
differs from non-background pushes, where expired tokens are regularly
cleared.
Is this the expected behavior (i.e.,
background notifications will not return an "Unregistered" error), or could this indicate an issue on our side?
Thanks in advance for any clarification.
以下の問題が発生しています:
特定のデバイスでプッシュ通知が受信されません。
考えられる原因は何でしょうか?
プッシュ通知は自社のサーバーから送信しており、APNs(Apple Push Notification service)からは正常な応答が返ってきています。
ユーザーはデバイスで通知が有効になっていることを確認しており、ネットワークの問題も報告されていません。
この問題は複数のユーザーに発生しています。
I dont want my server to be spammed. Currently I am only in payment-related notifs (eg: user successfully renewed his subscription, user didnt successfully renew his subscriptions, ..)
Where can I set that?
Topic:
App & System Services
SubTopic:
Notifications
Hi Apple Support team,
I would like to inform you that we were receiving push notifications to all regions. Recently we were facing push notifications are not receiving to brazil region. For all other regions we are receiving. We are using same APSN certificate. Any region specific permissions do we need to add. Please let me know. Thanks.
My App supports two services that is Push Notification for Alerts and a Voip Call feature whose notification also comes in the same way as of PushNotification but video rendering is done with GoogleWebRTC.
The App was working perfectly fine but from past few months these services are not working.[ Nothing is changed in App and on the server side to push the notifications]
Issues:
VoIP (Video call) not working: I have apns certificate which is valid in today's date and stays with the backend Server. My server sends the payload notification to APNS but on iPhone am unable to receive it. I have checked the App registration part also and is able to receive the token for the same.
Framework used are: PushKit, UserNotifications, GoogleWebRTC .
I don't understand where is the gap, the backend triggers the APNS but there no response.
Ports enabled on server are: 443, 5223, 2197, 2195, 2196.
Similarly Push notification were also not working, So I tried to change it to register on Firebase for device registration token And did some coding at backend to send the notification to that device. It was working perfectly fine from last few weeks, but it suddenly stopped. I checked the JSON Payload and tried to send it through PostMan, in both it says 200 Success. And in Application end am waiting for breakpoint to hit in userNotificationCenter(_: , willPresent, completionHandler).
What all I have checked:
1)My server to APNS server connectivity.
2)Verified the apns certificate. The certificate was created in October 2024, whose expiry is in Nov 2025 and it support both Sandbox and Production environment.
3)Checked required delegates are implemented in App. With the capability enable in it, is also sending registration token to backend.
Kindly guide me where I can check in this flow.
Thanks in Advance!
How do i add the red bubble badge notification on the app for unread in app messages
Topic:
App & System Services
SubTopic:
Notifications
Hello Everyone,
I somehow missed to renew the APNS Certificate,
I am new to Apple Ecosystem, I can not see the expired or any Certificates under
Certificates, Identifiers & Profiles
Can anyone help me with this!
Is there a way to configure the APNS notification sound volume to be louder?
I am implementing some custom sounds(narrative sentences) for APNS, it does play the custom sound, but the volume of the custom sound is not loud enough even though I had set the device's volume and "RingTone and Alerts" volume to max.
I tried to amplify the custom sound file, it does play louder but the result is minimum if I want to maintain the quality of the sound without it been distorted.
I tried to use Notification Service Extension, AVAudioPlayer and AVAudioSession to play the sound, it does play louder in max volume compare with relying on default sound payload in APNS, but the problem is AVAudioPlayer and AVAudioSession do not seems to be usable when the application is in background or killed state, is there any other alternative I could use?
I’m receiving notifications from all third-party apps that I use however, most of the time there is no sound or haptics with the notification. In some cases, very seldomly I will receive a sound when a notification comes in, but that’s only with one of the many third-party apps that I use. I’ve spoken to Apple about this when this whole problem started during an update that you guys rolled out sometime between September and November 2024. They blamed it on the app programmers but I think at this point we all know that it’s Apple’s inability to accept that the problem is on their end. I never had problems receiving notifications from any of the apps prior to that.
I guess my question is will Apple ever fix this or are they going to sweep it under the rug and pretend like it doesn’t exist?
I am checking if the user taps on the firebase push notification and get the payload.
override func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
let userInfo = response.notification.request.content.userInfo
os_log("notification tapped %{public}@", log: OSLog.push, type: .info, userInfo)
handleNotificationPayload(userInfo as! [String: AnyObject])
setFlutterLinkClickedVariable()
}
My use case is in app terminated state when push notification is tapped, get the link from payload and navigate to corresponding screen based on the link. This is working when there is only one push notification. When there are multiple push notifications with different links in the payload, only the first notification I tap works. Rest of the notifications just launches the app and does not navigate because the link is not set.
I am getting the link from the payload and invoking flutter code which sets the link in the user defaults (shared preferences) and when the app launches in the home screen it checks for this variable and navigates accordingly.
func handleNotificationPayload(_ payload: [String: AnyObject]) {
if let link = payload["link"] as? String {
setFlutterLinkVariable(link)
}
}
override func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
os_log("app did receive remote notification %{public}@", log: OSLog.push, type: .info, userInfo)
handleNotificationPayload(userInfo as! [String : AnyObject])
completionHandler(.newData)
}
Currently when there is only one push notification it works because the link is set from the above method. The click delegate is not calling. I did set the delegate in application(:didFinishLaunchingWithOptions).
UNUserNotificationCenter.current().delegate = self
application.registerForRemoteNotifications()
How to solve this issue? Thanks.
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