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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Push notification volume for custom sound
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?
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197
Apr ’25
Push notifications - Traffic gets "server-rst"
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
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119
Apr ’25
Push Notification Gets Removed From Notification Screen When Setting "badge" to 0
Push message on the lock-screen disappears in one specific instance. In general the situation is as follows: the application, upon starting up, sets the badge counter (i.e. notificationCenter.setBadgeCount(3)) the application is being sent to background the screen is locked (it doesn't matter if it's turned on or not) send a push message to the application and set the badge (in aps) to "0" What happens: the screen lights up (unless it's lit up already), the push is being displayed for a very short time and gets hidden. Happens on iOS 18.1, 18.1.1, 18.2. If not setting badge in the aps keys it works correctly. I've created a feedback report https://feedbackassistant.apple.com/feedback/16095572. I am able to reproduce the issue on a sample app 100% of the time :/
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680
Oct ’25
Missing notification – APNs success but not delivered to device
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
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187
Nov ’25
Live Activity "Push to Start" is received but UI never appears (Silent Crash)
Hello everyone, I'm implementing the "Push to Start" feature for Live Activities, and I've run into an issue where the activity seems to be processed by the system but never appears on the Lock Screen or in the Dynamic Island. I suspect there's a silent crash happening in my widget extension immediately after launch, but I'm unable to capture any logs or crash reports in the Xcode debugger. Here is the flow and all the relevant data: 1. The Process My app successfully requests a pushToStartToken using Activity<EJourneyLiveActivityAttributes>.pushToStartTokenUpdates The token is sent to our server. The server uses this token to send a "start" event APNs push notification. The device console logs (from liveactivitiesd) show that the push is received and the system is "Publishing event". Expected Result: The Live Activity UI appears on the device. Actual Result: Nothing appears. The UI is completely absent. 2. Device Console Logs Here are the logs from the device console, which indicate a successful receipt of the push: pushServer default 12:08:22.716353+0200 liveactivitiesd Received push event for com.wavepointer.ejourney.staging::pushToStart pushServer default 12:08:22.716818+0200 liveactivitiesd Reduced budget for com.wavepointer.ejourney.staging::pushToStart to: 7 pushServer default 12:08:22.723458+0200 liveactivitiesd Publishing event: timestamp: 2025-07-24 08:57:19 +0000; activityIdentifier: 53C3EE9D-623C-4F38-93AE-8BB807429DAA; eventType: start(...) 3. APNs Payload This is the exact payload being sent from our server: { "aps": { "event": "start", "timestamp": 1753347375, "attributes-type": "EJourneyLiveActivityAttributes", "attributes": { "journeyId": "test123453" }, "content-state": { "distanceInMeters": 1000, "depTime": 1752745104, "arrTime": 1752748704, "depStop": "Arth, Am See", "arrStop": "Oberarth, Bifang", "depZone": "571", "arrZone": "566", "co2Save": 5.0, "co2SavePerc": 44, "companyName": "WP Innovation", "countryCode": "CH", "categoryId": 5, "subcategoryId": 3, "stationStartAssoc": "Assoc1", "stationEndAssoc": "Assoc2" } } } 4. ActivityAttributes Struct To prevent decoding errors, I have made all properties in my ContentState optional and added a custom decoder. @available(iOS 16.1, *) struct EJourneyLiveActivityAttributes: ActivityAttributes, Hashable { public struct ContentState: Codable, Hashable { var distanceInMeters: Int = 0 var depTime: Int = 1752843769 var arrTime: Int = 1752843769 var depStop: String = "" var arrStop: String = "" var depZone: String = "" var arrZone: String = "" var co2Save: Double? var co2SavePerc: Int = 0 var companyName: String = "Test" var countryCode: String = "CH" var categoryId: Int = 3 var subcategoryId: Int = 4 var stationStartAssoc: String? var stationEndAssoc: String? } var journeyId: String? } What I've Tried I have carefully checked that my Codable struct matches the JSON payload. I've made all properties optional to avoid crashes from missing keys. I have tried attaching the Xcode debugger to the widget extension process (Debug -> Attach to Process...) before sending the push, but no logs, errors, or crash reports appear in the Xcode console. The process seems to terminate before it can log anything. My question is: What could cause the widget extension to fail so early that it doesn't even produce a crash log in the attached debugger? Are there other methods to debug this kind of silent failure? Any help would be greatly appreciated. Thank you!
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265
Jul ’25
Provisioning Profile Missing com.apple.developer.alarmkit Entitlement – No AlarmKit Capability in Developer Portal
Hello everyone, I’m working with AlarmKit (iOS/iPadOS 26) and encountering a critical blocker. On the simulator, after adding NSAlarmKitUsageDescription to Info.plist, AlarmKit functions as expected—no entitlement issues. However, when building to a physical device, Xcode fails with: “Provisioning profile … doesn’t include the com.apple.developer.alarmkit entitlement.” The core issue: there is no AlarmKit capability visible under App ID settings or provisioning profiles in the Developer Portal. Thus, this entitlement cannot be enabled or included in a profile. Steps taken so far: Reviewed WWDC25 AlarmKit session and documentation. Reviewed Apple Developer documentation on entitlements and provisioning. Verified there's no AlarmKit toggle or capability in the Developer Portal (Certificates, Identifiers & Profiles > Identifiers). Submitted multiple Feedback requests via Feedback Assistant, but received no technical resolution. Questions: Is there meant to be a separate AlarmKit entitlement (distinct from Critical Alerts)? If so, when will the com.apple.developer.alarmkit entitlement option be available in the Developer Portal? In the meantime, how can developers test AlarmKit-based features on physical devices? Could an Apple Engineer advise on whether an internal entitlement workflow or workaround exists for testing? Thank you in advance for any clarity anyone can provide. I'm stuck at a total impasse until this is resolved. —John Current Project Configuration Relevant Parts: info.plist: NSAlarmKitUsageDescription Schedules system-level alarms that break through Do Not Disturb and Focus modes to ensure alarms trigger reliably. UIBackgroundModes audio background-app-refresh location remote-notification entitlements.plist aps-environment development com.apple.developer.icloud-services CloudKit com.apple.developer.alarmkit com.apple.developer.usernotifications.time-sensitive
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353
Aug ’25
AlarmKit Volume and Volume Buttons
Excited for AlarmKit! I have found two concerns that I cannot find answers for though. The volume of my alarms seems to be very quite relative to the full volume capability of the device. For example, if I turn the volume all the way up and play the audio file, the sound is very loud. However then, if I set the alarm using alarm kit with the same audio, the track played during the alerting phase is not that loud. I am afraid that it will not be loud enough in real life. Will there be future support to set the volume level of the alarm to maximum settings? When I press the volume buttons (with the app open) during an active alarm, the audio stops, but the alarm manager does not clear these events. The alarm manager does clear the alarm event if the alarm is stopped through a live activity.
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4w
The APP was not awakened after start a liveactivity
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.
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3d
What is the expected behavior for a notification service extension if the user has not been prompted for requestAuthorization()
If an iOS application has a notification service extension which gets sent a push, but the user has not been prompted for notification authorization via requestAuthorization() then what is the expected behavior? Will the push get delivered to the NSE but the resulting notification not displayed? Or will the push not get delivered at all to the NSE?
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146
Sep ’25
Push notification MacOS "discarded as device was offline"
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
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Oct ’25
Case-ID: 14080335 Push notification requests to iOS devices using APNs (HTTP/2) time out
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.
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281
May ’25
AlarmKit alarm UI strings are lost after updating OS
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.
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186
Oct ’25
Alarm.Schedule.Relative gets scheduled to next day if too close?
Hi there, Thank you for the framework 🙏 if I use Alarm.Schedule.Relative with Alarm.Schedule.Relative.Time(hour: hour, minute: minute) and Alarm.Schedule.Relative.Recurrence.never it seems like there is some (odd?) limit where alarm will get scheduled to next day if too close? For example, lets say the current time is 12:00 PM, if I schedule alarm for 12:02 PM, it will schedule it for next day, while if I do 12:05 PM it will work as expected. Is that expected? If yes, what's the behavior and is that documented anywhere? I would expect any alarm thats scheduled in the future to fire for the current day (maybe if it's only 1 minute it gets tricky). One problem is also that even if the framework says an alarm is scheduled, I don't have access to the "next alarm date"? I wish I did as otherwise I have to compute it (by "guessing" the AlarmKit calculation) if I want to do anything with that date. Honestly, sometimes I think I am just going crazy when the alarm doesn't fire, but there SEEMS to be some odd behavior around this? (of course, feel free to correct me on anything - I could be missing documentation or not understanding something)
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171
Aug ’25
APNs keep returning unregistered token
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.
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2.0k
Nov ’25
Periodic, seemingly global APNS disruptions
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).
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188
Mar ’25
Why are non-critical notifications quieter than critical alerts at max volume?
When I turn the Ringtone and Alerts volume all the way up, I expect standard notifications to play at the loudest level the device allows. In theory, this should match the volume of a critical alert with its sound.volume set to 1.0 in payload. However, I’ve noticed that non-critical notifications still play quieter than critical alerts under these conditions. Critical alerts with volume: 1.0 sound noticeably louder than standard notifications, even though the Ringtone and Alerts slider is already set to maximum. And I couldn't find a documentation for this behavior anywhere. Is this expected behavior on iOS? And is there any way to make non-critical notifications play at the same maximum loudness as critical alerts? Thanks in advance for any clarification.
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239
Sep ’25
Consent Revocation Notification
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 a​n 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​?
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431
Dec ’25