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?
Notifications
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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?
Hello, I'm from Microsoft team maintaining push notification api behind Teams platform.
We are experiencing strange and short error spikes towards APNS that seem to mostly correlate worldwide. We checked the networking and push request code but could not find what could be causing this. These error spikes are all timeouts or connection resets (by remote host, ie. APNS servers) and seem to come and go randomly:
Would it be possible to check this for outages or some other metrics on your side or investigate why would it happen? Since it's worldwide it seems unlikely it's something broken on our side. We are using the standard APNS http2 endpoint with modern support for all RFC features (so everything should work normally).
Mind you, our api might be in a unique position because of the volume of notifications (in the billions per day).
Hello. Recently, the users of our APP have reported using our products, and they can normally receive push in Hong Kong. However, when traveling to Japan or some countries and regions in Europe, push will not be received.
we checked that
-the cert is valid
-the server get 'sent successfully' response
-used pushtry to test the cert and token and it can receive push in app
Question, if I am writing async code in the notification service extension, I understand it terminates after 30 seconds.
If I want to wait until these async methods finish before calling the content handler, I believe an option I have is to use dispatch groups. However I am open to other solutions if there are better options.
My question is, if I use dispatch groups, is there any issue in using the main queue here? Or does the main thread not make sense to use in the context of the NSE?
dispatch_group_notify(group, dispatch_get_main_queue(), ^{
if (self.contentHandler) {
self.contentHandler(self.bestAttemptContent);
}
});
Or is it recommended to instead use a different queue in the NSE?
dispatch_queue_t nseQueue = dispatch_queue_create("com.blah.blah.nse.queue", DISPATCH_QUEUE_SERIAL);
dispatch_group_notify(group, dispatch_get_global_queue(QOS_CLASS_(SOMETHING), 0), ^{ ... });
OR am I over thinking this? :) Thanks ahead of time, relatively new to iOS so just looking to learn/understand better.
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
Extensions
Notification Center
User Notifications
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?
Got notification to update this certificate - there was a link to Sectigo.com where I found an attachment with that name - when I clicked it I got a box where it said to install it. Clicked the box and it was saved somewhere on my computer.
Now I dont know if that's it or I need to take further actions - please help :-)
Have no experience with this - my collegue who did this has stopped.
Hoping for a simple answer :-)
P
Hello,
I have a couple of questions regarding the change of the Certification Authority (CA) for Apple Push Notification service (APNs) and I will be grateful for any answers.
Does it require only making sure the server machine has the SHA-2 Root: USERTrust RSA Certification Authority certificate included in Trust Store (/etc/ssl/certs/USERTrust_RSA_Certification_Authority.pem with SHA256: 8a3dbcb92ab1c6277647fe2ab8536b5c982abbfdb1f1df5728e01b906aba953a) ?
Should the Certificate Signing Request be updated (that one that is uploaded to https://identity.apple.com/pushcert/) ?
Does it have any connection with the certificates that are created on https://identity.apple.com/pushcert/ ?
Is the push type "mdm" affected too?
Which certificate should be added and where specifically? Is it for Certificate Signing Request to https://identity.apple.com/pushcert/ or the certificate that is generated on https://developer.apple.com/account/resources/certificates/list or like mentioned in the first question?
Can a certificate for sandbox environment be created on https://identity.apple.com/pushcert/ ?
Thank you for any help.
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?
Hi, we've observed a weird behavior for a small amount of our user that we keep receiving the same token from APNs despite it's shown as Unregistered.
When we try to send push to the token, we got an Unregistered error so we remove that token from our server. However, later we would receive an add token request from the client with the same token we just removed, and when we try to send to the token it returns Unregistered again so we remove the token again. This happened 3 times for a user in an hour. The identifierForVendor remains the same for all the requests.
We also owns the client and I've checked client code that it's sending the token it received from didRegisterForRemoteNotificationsWithDeviceToken to the server.
It seems our company server is sending to Apple push service the push notifications that are supposed to be transferred to devices our app is installed on – but you it seems you are blocking the request
We can see traffic going out from our server side towards the apple gateway notification server using port 2195 and we can see that the traffic gets "server-rst" meaning that the apple gateway server kills the connection
You might need to whitelist our external IP's
We have a customer reporting that they didn’t receive some of their push notifications. On November 3, 2025, four push notifications were sent — the customer received the first three but not the last one. Our logs show a successful response from APNs, with the apns-id c116d650-efc6-4fb1-8a74-382d5bab4692.
A very similar case occurred on October 31, where the customer also claimed not to have received the notification, yet our logs again show success from APNs with apns-id 1468ef43-66d6-40d2-b10a-c96889fcb65a.
Wondering if there any way to help us to trace these cases.
Thanks
We are currently developing a WebAPI service that uses APNs (HTTP/2) to send push notifications to iOS devices.
(Using PushSharp's HTTP/2 support)
The WebAPI service is running on IIS using .net framework 4.8 and c#.
The connection to APNs is always maintained, and the connection is checked every 30 minutes using a dummy token Ping.
KeepAlivePeriod = 30 minutes and KeepAliveRetryPeriod = 10 seconds have also been set.
However, the following issues are occurring.
Although the Ping sent immediately before was successful, a TimeoutException occurs in the notification request sent a few minutes later.
There is no explicit disconnection notification from APNs, and the connection appears to be silently disconnected.
Once a TimeoutException occurs, it occurs frequently afterwards.
Below is an excerpt from the log.
Apple Notification Failed for some unknown reason 1-1: One or more errors occurred.
Apple Notification Failed for some unknown reason 1-2:System.TimeoutException: The operation timed out.
In light of this issue, I would like to be advised on the following two points.
Are there any official specifications regarding the lifecycle and expiration date of APNs HTTP/2 connections?
Even if pings are sent periodically, is there a timeout or other setting that disables the connection on the APNs side?
What are the conditions that would cause APNs to silently terminate a connection?
For example, could this be due to inactivity, TLS restrictions, network maintenance, etc.?
If you have any official documentation or technical guidelines to improve the reliability of this system, we would appreciate it if you could share them with us.
Thank you in advance.
When the app kills the process. Received APNs push message. Push messages carry voice related information. At the same time as receiving the push, obtain the voice playback of this voice message. How to achieve it?
I have a working AlarmKit app, but I've noticed that after any iOS update (e.g. the 26.0.1 update from a few days ago), my scheduled alarms seem to lose their UI strings, so instead of the Stop button saying "Stop", it says "alarm_ui_stop_button" (which is my localization key for the button text). If I delete the alarm and re-add it, then it works again... until the next software update.
It seems like OS updates are interfering with the link between scheduled alarms and app localization strings, which I believe are dynamically looked up at alarm time (not at configuration time).
I am settings the strings in the standard way like this:
AlarmManager.AlarmConfiguration(
schedule: .fixed(date),
attributes: AlarmAttributes<SDAlarmMetadata>(
presentation: AlarmPresentation(
alert: AlarmPresentation.Alert(
title: "alarm_ui_title",
stopButton: .init(text: "alarm_ui_stop_button", textColor: .yellow, systemImageName: "xmark")
)
),
metadata: SDAlarmMetadata(title: title, subtitle: subtitle),
tintColor: .yellow
),
sound: .default
)
Has anyone else noticed this or found a workaround? I guess I could use localization keys that are identical to the desired text, but this would only work for one language.
Topic:
App & System Services
SubTopic:
Notifications
In didFinishLaunchingWithOptions I have this setup for getting the token to send to my server for notifications. The issue is that the delegate callback didRegisterForRemoteNotificationsWithDeviceToken gets called twice when also initializing a CKSyncEngine object.
This confuses me. Is this expected behavior? Why is the delegate callback only called twice when both are called, but not at all when only using CKSyncEngine.
See code and comments below.
/// Calling just this triggers `didRegisterForRemoteNotificationsWithDeviceToken` once.
UIApplication.shared.registerForRemoteNotifications()
/// When triggering the above function plus initializing a CKSyncEngine, `didRegisterForRemoteNotificationsWithDeviceToken` gets called twice.
/// This somewhat make sense, because CloudKit likely also registers for remote notifications itself, but why is the delegate not triggered when *only* initializing CKSyncEngine and removing the `registerForRemoteNotifications` call above?
let syncManager = SyncManager()
/// Further more, if calling `registerForRemoteNotifications` with a delay instead of directly, the delegate is only called once, as expected. For some reason, the delegate is only triggered when two entities call `registerForRemoteNotifications` at the same time?
DispatchQueue.main.asyncAfter(deadline: .now() + 4) {
UIApplication.shared.registerForRemoteNotifications()
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
print("didRegisterForRemoteNotificationsWithDeviceToken")
}
Hi, With the upcoming changes to the Apple Push Notification service (APNs) server certificates — including the SHA-2 Root: USERTrust RSA Certification Authority certificate update — I wanted to clarify if we need to take any action with Salesforce.
Hello,
I have the new root certificate is installed on the server (regarding "Action Required: Apple Push Notification Service Server Certificate Update"). I have switched to using sandbox environment to test if it would be working but I get error:
"reason":"BadCertificateEnvironment"
does it mean that the root certificate is not installed correctly or that is a different issue?
What could be the reason for that?
I have found that this response corresponds to "The client certificate is forthe wrong environment.", but there weren't an option to set environment on "https://identity.apple.com/pushcert/".
Hi everyone,
I am having issues with all my MacOS devices (3 so far) and push notifications.
My app is in development and when i send a Test APN (From the Push Notification Console) to any of my MacOS devices (using the device token), the log is "discarded as device was offline".
Fun fact, if i run the command : sudo kill apsd
I receive the previously "discarded" Push notification immediately.
Is it a known bug or something is wrong in my configuration ?
Note : my debugProfile.entitlements is fine and the value is set to "development", i have already reloaded my certificate by cleaning the project and rebuilding (according to ChatGPT) but nothing works...
I am using Xcode 26.0.1 and MacOS 26.0.1 on my 3 different MacOS devices all having this issue.
Thanks in advance,
Tom
We are in the process of preparing our app to support the new Texas law (SB2420) that takes effect 1/1/2026.
After reviewing Apple's recent announcements/docs concerning this subject, one thing isn't clear to me: how to associate an app install with an App Store Server RESCIND_CONSENT notification that could be delivered to our server.
Our app is totally free so there isn't an originalTransactionId or other similar transaction IDs that would be generated as part of an in-app purchase (and then subsequently sent as part of the payload in the notification to our server during an in-app purchase scenario).
So my question is: How do I associate an app (free app) install with an App Store Server RESCIND_CONSENT notification that is sent to our server?
Topic:
App & System Services
SubTopic:
Notifications
Tags:
App Store Server Notifications
Declared Age Range