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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"Invalid Certificate Signing Request" error when generating MDM Push Certificate
Hello, I am currently developing an MDM solution, including both the sever-side(.NET) and the client app. I have recently been granted the "MDM CSR" signing permission in the Certificates, Identifier & Profiles of my developer account. I am following the official Apple documentation, "Setting up Push Notifications for your MDM Customers," to generate the required MDM Push Certificate. However, I keep encountering the "Invalid Certificate Signing Request" error when uploading the encoded .plist file to the Apple Push Certificates Portal(identity.apple.com/pushcert). The steps I have taken so far: Generated .csr file via Keychain Access Used the MDM SCR certificate to sign the request. Created a .plist file for th final upload containing : Customer CSR: Base64 encoded Signature : Signed using the SHA256withRSA algorithm and Base64 encoded. Certificate Chain : Including my MDM Vendor Signing Certificate, the Apple WWDR intermediate certificate, and the Apple Root CA. Issues/Questions: Is there a specific requirement for the order of the certificates in the chain? Are there common pitfalls regarding the .plist structure or the encoding of the signature that might cause the "Invalid CSR" error? Is there a tool or a specific validation step I can use to verify the integrity of the generated .plist before uploading? I have double-checked the encoding and the signing process, but the portal continues to reject the request. Any insights or guidance from community would be greatly appreciated. Thank you in advance for your help!
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1w
iPhone push notifications stop: DeviceTokenNotForTopic
We are facing an issue: push notifications are not being received. We are using the Marketing Cloud SDK for push notifications. On install, the app correctly registers for push notifications. We pass the required information to Marketing Cloud — for example, contact key, token, etc. Marketing Cloud also confirms that the configuration is set up, and we have tried sending push notifications with proper delivery settings. The issue is that after some time, the device gets automatically opted out in the Marketing Cloud portal. When we consulted their team, they said this is caused by the “DeviceTokenNotForTopic” error received from APNs. I have verified the certificates and bundle ID from my end — everything looks correct. Device: iPhone 15, iPhone 17 iOS: 18.7.2, 26.1
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172
Dec ’25
Critical Alerts Entitlement
Hi Team, We’re following up on our request for the Critical Alert entitlement for our app, which we plan to use to notify users about critical states of their devices. It’s been almost 4 weeks since we submitted the request, and we wanted to check on the typical review timeline so we can plan our upcoming work accordingly. If there’s anything we can provide or clarify to help complete the review or make the process easier, we’d be happy to assist. or the right forum to reach out to.
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64
Jul ’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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182
Aug ’25
Unable to connect to APNS sandbox endpoint
I am unable to connect to APNs sandbox push endpoint from our backend servers. It works fine when hitting the request from my local machine but it fails from the infra servers. Here are the complete curl details. Endpoint: https://api.sandbox.push.apple.com:443 CURL request and response: curl -v https://api.sandbox.push.apple.com:443 Trying 17.188.168.149:443... Connected to api.sandbox.push.apple.com (17.188.168.149) port 443 ALPN: curl offers h2,http/1.1 Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH TLSv1.2 (OUT), TLS handshake, Client hello (1): CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 Closing connection curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 There are no issues with Production endpoint. Can someone help? Verified all certificates. Everything worked fine until 29th July but started failing since 30th July
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174
Aug ’25
Critical Messaging Intermittent Success with notSupported
Hello, I am trying to utilize the Critical Messaging API to allow my user to message 1 or multiple pre registered contacts automatically. An issue I am having with this in testing is that when the application attempts to fire off texts to the phone numbers the success rate changes from trial to trial, with no variable changing. Sometimes I can send a Critical Message to multiple phone numbers in rapid succession, sometimes the message is only sent to 1 contact, and sometimes I get no successes. Each failure always returns the MSCriticalMessaging.notSupported error. The API documentation states, "The send(_:to:) method only works if the app is backgrounded, if it’s called from foreground the framework returns a MSCriticalMessagingError.notSupported error." If my app is always backgrounded in these tests, what other issues may cause this notSupported error return, and why does the outcomes success rate vary?
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205
Sep ’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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286
May ’25
Unable to connect to APNS sandbox endpoint
I am unable to connect to APNs sandbox push endpoint from our backend servers. It works fine when hitting the request from my local machine but it fails from the infra servers. Here are the complete curl details. Endpoint: https://api.sandbox.push.apple.com:443 CURL request and response: curl -v https://api.sandbox.push.apple.com:443 Trying 17.188.168.149:443... Connected to api.sandbox.push.apple.com (17.188.168.149) port 443 ALPN: curl offers h2,http/1.1 Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH TLSv1.2 (OUT), TLS handshake, Client hello (1): CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 Closing connection curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 There are no issues with Production endpoint. Can someone help? Verified all certificates. Everything worked fine until 29th July but started failing since 30th July Here is the PCAP file. Additionally, Here is the outbound public IP : 3.251.214.255 apple_push_sandbox_pcap.txt
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118
Sep ’25
How to Enable com.apple.developer.pushkit.unrestricted-voip Entitlement for Production App?
We are developing a walkie-talkie style iOS app using CallKit and PushKit for real-time voice communication. The app is intended for internal company use and requires unrestricted VoIP push capabilities to reliably deliver incoming call alerts, even in background or locked states. Our app's use case follows Apple’s guidelines, and we are not using PushKit for messaging or background data. We have already enabled "Push Notifications" in Capabilities and confirmed the provisioning profile, but are unable to enable com.apple.developer.pushkit.unrestricted-voip. Could someone from Apple or the community advise on the current process to request this entitlement for a production app? Developer Team ID: 3KX7Q4LX88 App Bundle ID: com.ksc-sys.rcc.TakumiTalk Developer Name: KOHEI TAKAOKA Company: R C C, Y.K
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133
Jun ’25
Notification content extension not working
Are there some requirements to use Notification Content Extensions other than including the target to my iOS app? I have done it, configured it to match a certain category of notifications, but my custom interface doesn’t show up. is there anything I need to configure on my main app? Is that anything that should be changed there, such as disabking its botifications handling? is there any requirement concerning the payload? I tried to disable time sensitive and content-available notifications, but it didn’t help.
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17
12h
iPhone收不到PushKit推送
token:eb3b63ab94b136f6d25a86d48bb4b7ff20377e393f137cb4f43b17560112bf51 msgId:67d4c88d-61b1-4f51-df0b-2efa022fd672 机型:iPhone7 系统:iOS 15.8.3 问题描述:后端服务器调用苹果提供的pushKit推送API且已成功返回上述msgId,客户端App也已经实现对应的CallKit方法reportNewIncomingCall,但没有收到对应的推送,这是什么原因呢?
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6d
Getting null data from App Store Server Notification
Hello Apple Support Team, We are using auto-renew plans in our app We have set the webhook URL in our App Store Connect account to get the Store server notification to get the auto renew data for an user The issue is when a user purchases any auto-renew plan at the auto-renew time, we are getting null data from the Apple side. We have printed the log's data to check what data are coming from the Apple webhook. we have attached our logs data please check it and let me know what can we do to resolve this
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117
Jun ’25
How to re-enable entitlements after App Transfer? (Location Push Service Extension)
Hi Apple team and fellow developers, We previously had Location Push Service Extension enabled and working in production. After transferring the app to a new Apple Developer team, the production App ID was transferred, but the Location Push entitlement was not retained. We've also created a new App ID for development, and now need Location Push access enabled for both the transferred production ID and the new development ID. We’ve already submitted the Location Push Access form with all relevant details. Unfortunately, the App Transfer documentation didn’t make it clear that Location Push access would be lost, and now we’re blocked from making new builds — even for the existing production app. ❓ Questions: Is it possible to re-enable Location Push for a transferred App ID? What’s the expected timeline for entitlement approval? Can Apple staff confirm the request status or let us know if any further action is needed? Thanks in advance — this entitlement is critical for our app’s functionality and release pipeline. Best, Aidar
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107
May ’25
My app suddenly cannot receive push notifications
My app(The Smart Life app) is unable to receive push notifications. Please confirm whether APNs has received push notifications from Alibaba Cloud and whether APNs has successfully pushed notifications to the Smart Life app.The Smart Life app uses Alibaba Cloud's push notification service. The message ID pushed by Alibaba Cloud is: f7a02288-a995-47ed-b417-837461028f03 Current Symptom: Alibaba Cloud has reported that this message has been successfully pushed to APNs, but the smart life app has not received any push notifications. The feedback log from Alibaba Cloud shows that the APNs push was successful, but the smart life app did not receive any push. Because APNs do not have message receipts and Alibaba Cloud cannot obtain notification delivery status, it is recommended that I use the APNs channel message ID to submit a work order to Apple technical support for investigation. Note: All push notification permissions for the Smart Life app are enabled, and the Smart Life app is in the foreground when push notifications are sent.
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107
Sep ’25
Question about "Notification (NSE) filtering" capability request
We are developing a messaging app which sends End-to-End encrypted data. The application supports multiple types of E2EE data, including text messages and voice over IP calls. Apple's article titled “Sending End-to-End Encrypted VoIP calls” (https://developer.apple.com/documentation/callkit/sending-end-to-end-encrypted-voip-calls) states that the following steps are required to support E2EE VoIP calls: Request permission to receive remote notifications through the User Notifications framework Register for VoIP calls using PuskKit Add a Notification Service Extension target to your app. Add the com.apple.developer.usernotifications.filtering entitlement to the NSE target’s entitlements file. We have completed steps one through three. We are still missing the filtering entitlement. As of right now the system does not allow us to use reportNewIncomingVoIPPushPayload(_:completion:) method because of the missing entitlement.
 Below is a short description of how our messaging app works: User sends a message to another user. The message is encrypted on device and sent to our server. The server receives the message and sends a notification request to APNs if needed. The server cannot decrypt the message. As an additional security feature we do not pass the encrypted message in the notification payload. The notification payload only contains a localizable generic placeholder message string and default sound in the ‘aps’ dictionary part. Upon receiving a notification from our server, the NSE makes a request to our server and fetches the latest messages (encryption keys have already been exchanged between the participants of the conversation) and determines what to do next (display a banner, or pass a call to CallKit). E2EE VoIP calls are a core feature of our app, so it is imperative that we receive the filtering entitlement. Our capability request has been rejected twice now. The latest request was rejected because: Support for VoIP calls should be provided by PushKit. For more information, please consult the documentation page "Responding to Notifications from PushKit". We cannot support VoIP calls by solely relying on PushKit. Our server cannot make a distinction when to use ‘voip’ (call) and ‘alert’ (text message) apns-push-types. Therefore, the application must be able to use reportNewIncomingVoIPPushPayload(_:completion:) function, where com.apple.developer.usernotifications.filtering entitlement is needed. We have sent the above text to support two weeks ago and made yet another request. Has anyone been able to get the capability as of late? What are the magic words that need to be included in the capability request? Can someone here help us? We made the first request on 3rd of September so this process has taken two months. Our planned release date is coming up and the absence of the capability is holding us back. We already have a released desktop and Android versions so changing the server implementation is really not an option.
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548
Nov ’25
CloudKit Subscriptions Not Triggering Push Notifications - No NotificationSend Events
ISSUE: CloudKit subscriptions are not triggering push notifications despite correct configuration. CloudKit logs show RecordSave events but NO NotificationSend events, indicating CloudKit is not attempting to send to APNS. CONTAINER: iCloud.Wunderkind.StrikeForceApp ENVIRONMENT: Tested in both Development and Production iOS 18.6.x Xcode 15.x (update with your version) Device: iPhone (not simulator) EVIDENCE: Subscriptions exist and are visible in CloudKit Dashboard Records are being created successfully (verified in logs) Device token is registered: 60eb962ff189dc5c2c0ef3e9d6643d72b4442a831bae224d2a553588b2e29139 Local notifications work correctly CloudKit logs show RecordSave but NO NotificationSend events STEPS TAKEN: Regenerated push certificates Disabled and re-enabled Push Notifications capability Deleted and recreated subscriptions Tested in both Development and Production environments Verified aps-environment entitlement matches environment Confirmed notification permissions granted SPECIFIC TEST: Creating a Challenge record with recipientRef matching my user triggers: ✅ RecordSave event in CloudKit logs ❌ No NotificationSend event ❌ No push notification received EXPECTED: CloudKit should send NotificationSend events and deliver push notifications when subscriptions match. ACTUAL: No NotificationSend events appear in CloudKit logs, no notifications delivered.
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Sep ’25
Push notifications don't deliver when device is idle on iOS 18.7 and 26.0
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!
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483
Sep ’25
api.push.apple.com always return 400 bad devicetoken
everytime i get my devicetoken from mdm certification,send to apns (api.push.apple.com 443),always return 400,please help me confirm if the devicetoken is expired or somethine wrong else here is the request and response device_token:79c3aec2b2c2b672c3b756c3910977c3a936c3aae280985ac380e280a6091cc2bfc3a132192b14c392c2be7a2ee280a229c3aa push_magic:AAFDAB81-0E63-4B72-A60A-1F8085325870 status_code: 400 headers: {'apns-id': '14BDD477-7D76-A2FB-582C-140BBD95A420'} resp: {'reason': 'BadDeviceToken'}
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144
Jun ’25
CarPlay: no banner or sound for APNs while connected, works on phone (iOS 18.0, UNNotificationCategoryOptions.allowInCarPlay)
Hi everyone! I’m integrating push notifications for a taxi-driver app and ran into a blocking CarPlay issue. When the iPhone is connected to CarPlay (wired or wireless), the push arrives on the phone without any sound and nothing is shown or announced on the CarPlay screen. If I unplug CarPlay, the same push plays the default sound and shows a normal banner on the lock screen, so the payload itself looks valid. Environment iPhone 13 Pro, iOS 18.0 CarPlay head-unit: Xcode 16.2 CarPlay Simulator App built with Flutter 3.22 + firebase_messaging: ^15.2.5 Deployment target: iOS 14.0 Xcode capabilities enabled: Push Notifications, Time-Sensitive Notifications App settings on the device: Allow Notifications -› Sounds ON, Show in CarPlay ON Siri › Announce Notifications › CarPlay: master toggle ON + my app added to the allowed list Driving Focus = Off (same result if it’s On) Native setup in AppDelegate.swift UNUserNotificationCenter.current().requestAuthorization( options: [.alert, .sound, .badge, .carPlay] ) { _,_ in } let carPlayCategory = UNNotificationCategory( identifier: "CARPLAY_ORDER", actions: [], intentIdentifiers: [], options: [.allowInCarPlay] ) UNUserNotificationCenter.current().setNotificationCategories([carPlayCategory]) UNUserNotificationCenter.current().delegate = self application.registerForRemoteNotifications() APNs payload that I send via FCM { "aps": { "alert": { "title": "New test order", "body": "Location info test" }, "sound": "default", "category": "CARPLAY_ORDER", "interruption-level": "time-sensitive", "relevance-score": 1 } } What could be the problem? Please help me solve the error
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Jun ’25
"Invalid Certificate Signing Request" error when generating MDM Push Certificate
Hello, I am currently developing an MDM solution, including both the sever-side(.NET) and the client app. I have recently been granted the "MDM CSR" signing permission in the Certificates, Identifier & Profiles of my developer account. I am following the official Apple documentation, "Setting up Push Notifications for your MDM Customers," to generate the required MDM Push Certificate. However, I keep encountering the "Invalid Certificate Signing Request" error when uploading the encoded .plist file to the Apple Push Certificates Portal(identity.apple.com/pushcert). The steps I have taken so far: Generated .csr file via Keychain Access Used the MDM SCR certificate to sign the request. Created a .plist file for th final upload containing : Customer CSR: Base64 encoded Signature : Signed using the SHA256withRSA algorithm and Base64 encoded. Certificate Chain : Including my MDM Vendor Signing Certificate, the Apple WWDR intermediate certificate, and the Apple Root CA. Issues/Questions: Is there a specific requirement for the order of the certificates in the chain? Are there common pitfalls regarding the .plist structure or the encoding of the signature that might cause the "Invalid CSR" error? Is there a tool or a specific validation step I can use to verify the integrity of the generated .plist before uploading? I have double-checked the encoding and the signing process, but the portal continues to reject the request. Any insights or guidance from community would be greatly appreciated. Thank you in advance for your help!
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0
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44
Activity
1w
iPhone push notifications stop: DeviceTokenNotForTopic
We are facing an issue: push notifications are not being received. We are using the Marketing Cloud SDK for push notifications. On install, the app correctly registers for push notifications. We pass the required information to Marketing Cloud — for example, contact key, token, etc. Marketing Cloud also confirms that the configuration is set up, and we have tried sending push notifications with proper delivery settings. The issue is that after some time, the device gets automatically opted out in the Marketing Cloud portal. When we consulted their team, they said this is caused by the “DeviceTokenNotForTopic” error received from APNs. I have verified the certificates and bundle ID from my end — everything looks correct. Device: iPhone 15, iPhone 17 iOS: 18.7.2, 26.1
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1
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0
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172
Activity
Dec ’25
Critical Alerts Entitlement
Hi Team, We’re following up on our request for the Critical Alert entitlement for our app, which we plan to use to notify users about critical states of their devices. It’s been almost 4 weeks since we submitted the request, and we wanted to check on the typical review timeline so we can plan our upcoming work accordingly. If there’s anything we can provide or clarify to help complete the review or make the process easier, we’d be happy to assist. or the right forum to reach out to.
Replies
1
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0
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64
Activity
Jul ’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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3
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182
Activity
Aug ’25
Unable to connect to APNS sandbox endpoint
I am unable to connect to APNs sandbox push endpoint from our backend servers. It works fine when hitting the request from my local machine but it fails from the infra servers. Here are the complete curl details. Endpoint: https://api.sandbox.push.apple.com:443 CURL request and response: curl -v https://api.sandbox.push.apple.com:443 Trying 17.188.168.149:443... Connected to api.sandbox.push.apple.com (17.188.168.149) port 443 ALPN: curl offers h2,http/1.1 Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH TLSv1.2 (OUT), TLS handshake, Client hello (1): CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 Closing connection curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 There are no issues with Production endpoint. Can someone help? Verified all certificates. Everything worked fine until 29th July but started failing since 30th July
Replies
3
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0
Views
174
Activity
Aug ’25
Critical Messaging Intermittent Success with notSupported
Hello, I am trying to utilize the Critical Messaging API to allow my user to message 1 or multiple pre registered contacts automatically. An issue I am having with this in testing is that when the application attempts to fire off texts to the phone numbers the success rate changes from trial to trial, with no variable changing. Sometimes I can send a Critical Message to multiple phone numbers in rapid succession, sometimes the message is only sent to 1 contact, and sometimes I get no successes. Each failure always returns the MSCriticalMessaging.notSupported error. The API documentation states, "The send(_:to:) method only works if the app is backgrounded, if it’s called from foreground the framework returns a MSCriticalMessagingError.notSupported error." If my app is always backgrounded in these tests, what other issues may cause this notSupported error return, and why does the outcomes success rate vary?
Replies
2
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205
Activity
Sep ’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.
Replies
3
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0
Views
286
Activity
May ’25
Unable to connect to APNS sandbox endpoint
I am unable to connect to APNs sandbox push endpoint from our backend servers. It works fine when hitting the request from my local machine but it fails from the infra servers. Here are the complete curl details. Endpoint: https://api.sandbox.push.apple.com:443 CURL request and response: curl -v https://api.sandbox.push.apple.com:443 Trying 17.188.168.149:443... Connected to api.sandbox.push.apple.com (17.188.168.149) port 443 ALPN: curl offers h2,http/1.1 Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH TLSv1.2 (OUT), TLS handshake, Client hello (1): CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 Closing connection curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.sandbox.push.apple.com:443 There are no issues with Production endpoint. Can someone help? Verified all certificates. Everything worked fine until 29th July but started failing since 30th July Here is the PCAP file. Additionally, Here is the outbound public IP : 3.251.214.255 apple_push_sandbox_pcap.txt
Replies
2
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0
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118
Activity
Sep ’25
How to Enable com.apple.developer.pushkit.unrestricted-voip Entitlement for Production App?
We are developing a walkie-talkie style iOS app using CallKit and PushKit for real-time voice communication. The app is intended for internal company use and requires unrestricted VoIP push capabilities to reliably deliver incoming call alerts, even in background or locked states. Our app's use case follows Apple’s guidelines, and we are not using PushKit for messaging or background data. We have already enabled "Push Notifications" in Capabilities and confirmed the provisioning profile, but are unable to enable com.apple.developer.pushkit.unrestricted-voip. Could someone from Apple or the community advise on the current process to request this entitlement for a production app? Developer Team ID: 3KX7Q4LX88 App Bundle ID: com.ksc-sys.rcc.TakumiTalk Developer Name: KOHEI TAKAOKA Company: R C C, Y.K
Replies
2
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0
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133
Activity
Jun ’25
Notification content extension not working
Are there some requirements to use Notification Content Extensions other than including the target to my iOS app? I have done it, configured it to match a certain category of notifications, but my custom interface doesn’t show up. is there anything I need to configure on my main app? Is that anything that should be changed there, such as disabking its botifications handling? is there any requirement concerning the payload? I tried to disable time sensitive and content-available notifications, but it didn’t help.
Replies
0
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12h
iPhone收不到PushKit推送
token:eb3b63ab94b136f6d25a86d48bb4b7ff20377e393f137cb4f43b17560112bf51 msgId:67d4c88d-61b1-4f51-df0b-2efa022fd672 机型:iPhone7 系统:iOS 15.8.3 问题描述:后端服务器调用苹果提供的pushKit推送API且已成功返回上述msgId,客户端App也已经实现对应的CallKit方法reportNewIncomingCall,但没有收到对应的推送,这是什么原因呢?
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55
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6d
Getting null data from App Store Server Notification
Hello Apple Support Team, We are using auto-renew plans in our app We have set the webhook URL in our App Store Connect account to get the Store server notification to get the auto renew data for an user The issue is when a user purchases any auto-renew plan at the auto-renew time, we are getting null data from the Apple side. We have printed the log's data to check what data are coming from the Apple webhook. we have attached our logs data please check it and let me know what can we do to resolve this
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117
Activity
Jun ’25
How to re-enable entitlements after App Transfer? (Location Push Service Extension)
Hi Apple team and fellow developers, We previously had Location Push Service Extension enabled and working in production. After transferring the app to a new Apple Developer team, the production App ID was transferred, but the Location Push entitlement was not retained. We've also created a new App ID for development, and now need Location Push access enabled for both the transferred production ID and the new development ID. We’ve already submitted the Location Push Access form with all relevant details. Unfortunately, the App Transfer documentation didn’t make it clear that Location Push access would be lost, and now we’re blocked from making new builds — even for the existing production app. ❓ Questions: Is it possible to re-enable Location Push for a transferred App ID? What’s the expected timeline for entitlement approval? Can Apple staff confirm the request status or let us know if any further action is needed? Thanks in advance — this entitlement is critical for our app’s functionality and release pipeline. Best, Aidar
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107
Activity
May ’25
My app suddenly cannot receive push notifications
My app(The Smart Life app) is unable to receive push notifications. Please confirm whether APNs has received push notifications from Alibaba Cloud and whether APNs has successfully pushed notifications to the Smart Life app.The Smart Life app uses Alibaba Cloud's push notification service. The message ID pushed by Alibaba Cloud is: f7a02288-a995-47ed-b417-837461028f03 Current Symptom: Alibaba Cloud has reported that this message has been successfully pushed to APNs, but the smart life app has not received any push notifications. The feedback log from Alibaba Cloud shows that the APNs push was successful, but the smart life app did not receive any push. Because APNs do not have message receipts and Alibaba Cloud cannot obtain notification delivery status, it is recommended that I use the APNs channel message ID to submit a work order to Apple technical support for investigation. Note: All push notification permissions for the Smart Life app are enabled, and the Smart Life app is in the foreground when push notifications are sent.
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107
Activity
Sep ’25
Question about "Notification (NSE) filtering" capability request
We are developing a messaging app which sends End-to-End encrypted data. The application supports multiple types of E2EE data, including text messages and voice over IP calls. Apple's article titled “Sending End-to-End Encrypted VoIP calls” (https://developer.apple.com/documentation/callkit/sending-end-to-end-encrypted-voip-calls) states that the following steps are required to support E2EE VoIP calls: Request permission to receive remote notifications through the User Notifications framework Register for VoIP calls using PuskKit Add a Notification Service Extension target to your app. Add the com.apple.developer.usernotifications.filtering entitlement to the NSE target’s entitlements file. We have completed steps one through three. We are still missing the filtering entitlement. As of right now the system does not allow us to use reportNewIncomingVoIPPushPayload(_:completion:) method because of the missing entitlement.
 Below is a short description of how our messaging app works: User sends a message to another user. The message is encrypted on device and sent to our server. The server receives the message and sends a notification request to APNs if needed. The server cannot decrypt the message. As an additional security feature we do not pass the encrypted message in the notification payload. The notification payload only contains a localizable generic placeholder message string and default sound in the ‘aps’ dictionary part. Upon receiving a notification from our server, the NSE makes a request to our server and fetches the latest messages (encryption keys have already been exchanged between the participants of the conversation) and determines what to do next (display a banner, or pass a call to CallKit). E2EE VoIP calls are a core feature of our app, so it is imperative that we receive the filtering entitlement. Our capability request has been rejected twice now. The latest request was rejected because: Support for VoIP calls should be provided by PushKit. For more information, please consult the documentation page "Responding to Notifications from PushKit". We cannot support VoIP calls by solely relying on PushKit. Our server cannot make a distinction when to use ‘voip’ (call) and ‘alert’ (text message) apns-push-types. Therefore, the application must be able to use reportNewIncomingVoIPPushPayload(_:completion:) function, where com.apple.developer.usernotifications.filtering entitlement is needed. We have sent the above text to support two weeks ago and made yet another request. Has anyone been able to get the capability as of late? What are the magic words that need to be included in the capability request? Can someone here help us? We made the first request on 3rd of September so this process has taken two months. Our planned release date is coming up and the absence of the capability is holding us back. We already have a released desktop and Android versions so changing the server implementation is really not an option.
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548
Activity
Nov ’25
CloudKit Subscriptions Not Triggering Push Notifications - No NotificationSend Events
ISSUE: CloudKit subscriptions are not triggering push notifications despite correct configuration. CloudKit logs show RecordSave events but NO NotificationSend events, indicating CloudKit is not attempting to send to APNS. CONTAINER: iCloud.Wunderkind.StrikeForceApp ENVIRONMENT: Tested in both Development and Production iOS 18.6.x Xcode 15.x (update with your version) Device: iPhone (not simulator) EVIDENCE: Subscriptions exist and are visible in CloudKit Dashboard Records are being created successfully (verified in logs) Device token is registered: 60eb962ff189dc5c2c0ef3e9d6643d72b4442a831bae224d2a553588b2e29139 Local notifications work correctly CloudKit logs show RecordSave but NO NotificationSend events STEPS TAKEN: Regenerated push certificates Disabled and re-enabled Push Notifications capability Deleted and recreated subscriptions Tested in both Development and Production environments Verified aps-environment entitlement matches environment Confirmed notification permissions granted SPECIFIC TEST: Creating a Challenge record with recipientRef matching my user triggers: ✅ RecordSave event in CloudKit logs ❌ No NotificationSend event ❌ No push notification received EXPECTED: CloudKit should send NotificationSend events and deliver push notifications when subscriptions match. ACTUAL: No NotificationSend events appear in CloudKit logs, no notifications delivered.
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164
Activity
Sep ’25
apns推送,app无法收到通知
token:009739d008a19dbe7e2273a1e4e8b5f73c4e2d7e220e7308f41e316f4c2fcf56 最近app无法收到服务端通过apns推送的通知,提交是成功的,但是app的所有用户都无法收到通知
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215
Activity
Jul ’25
Push notifications don't deliver when device is idle on iOS 18.7 and 26.0
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!
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483
Activity
Sep ’25
api.push.apple.com always return 400 bad devicetoken
everytime i get my devicetoken from mdm certification,send to apns (api.push.apple.com 443),always return 400,please help me confirm if the devicetoken is expired or somethine wrong else here is the request and response device_token:79c3aec2b2c2b672c3b756c3910977c3a936c3aae280985ac380e280a6091cc2bfc3a132192b14c392c2be7a2ee280a229c3aa push_magic:AAFDAB81-0E63-4B72-A60A-1F8085325870 status_code: 400 headers: {'apns-id': '14BDD477-7D76-A2FB-582C-140BBD95A420'} resp: {'reason': 'BadDeviceToken'}
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144
Activity
Jun ’25
CarPlay: no banner or sound for APNs while connected, works on phone (iOS 18.0, UNNotificationCategoryOptions.allowInCarPlay)
Hi everyone! I’m integrating push notifications for a taxi-driver app and ran into a blocking CarPlay issue. When the iPhone is connected to CarPlay (wired or wireless), the push arrives on the phone without any sound and nothing is shown or announced on the CarPlay screen. If I unplug CarPlay, the same push plays the default sound and shows a normal banner on the lock screen, so the payload itself looks valid. Environment iPhone 13 Pro, iOS 18.0 CarPlay head-unit: Xcode 16.2 CarPlay Simulator App built with Flutter 3.22 + firebase_messaging: ^15.2.5 Deployment target: iOS 14.0 Xcode capabilities enabled: Push Notifications, Time-Sensitive Notifications App settings on the device: Allow Notifications -› Sounds ON, Show in CarPlay ON Siri › Announce Notifications › CarPlay: master toggle ON + my app added to the allowed list Driving Focus = Off (same result if it’s On) Native setup in AppDelegate.swift UNUserNotificationCenter.current().requestAuthorization( options: [.alert, .sound, .badge, .carPlay] ) { _,_ in } let carPlayCategory = UNNotificationCategory( identifier: "CARPLAY_ORDER", actions: [], intentIdentifiers: [], options: [.allowInCarPlay] ) UNUserNotificationCenter.current().setNotificationCategories([carPlayCategory]) UNUserNotificationCenter.current().delegate = self application.registerForRemoteNotifications() APNs payload that I send via FCM { "aps": { "alert": { "title": "New test order", "body": "Location info test" }, "sound": "default", "category": "CARPLAY_ORDER", "interruption-level": "time-sensitive", "relevance-score": 1 } } What could be the problem? Please help me solve the error
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168
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Jun ’25