Notifications

RSS for tag

Learn about the technical aspects of notification delivery on device, including notification types, priorities, and notification center management.

Notifications Documentation

Posts under Notifications subtopic

Post

Replies

Boosts

Views

Activity

Regarding Delay/timed out issue of IOS push notifications
Dear Team, Hope You are dong good! Problem Description:- We are facing a huge delay in receiving IOS Push notifications on concerned devices. Found System.Timeout.Exception Error in IOS Logs(Screenshot & Recent Logs attached) Found a network delay between service installed servers & APNS(Apple Push Notification Service) Destination URL & Ports using in Push Notification service:- api.push.apple.com api.development.push.apple.com Destination Port-443 Also Found the error(TCP reset From server) between source(service installed server) & Destination (Apple Push Notification Service)-Screenshot attached Please have a look around the above  points & requesting advice regarding the below:- How to resolve this delay in reaching IOS push Notifications in concerned devices? Should we call more URL’s from services? If yes please provide URL’s/Ports to be opened from services ? Awaiting your Replies, Thanks,
1
1
1.5k
Jun ’25
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
1
0
164
Dec ’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'}
1
0
137
Jun ’25
PushKit (VoIP) delivery issue — user’s device fails to receive VoIP pushes; logging in on that device suppresses VoIP pushes for all devices of that user
We are facing an issue where VoIP notifications are not delivered to a user's device. If we login with the user credentials on another device the VoIP notifications are being received, if he logs in on his device VoIP notifications are not being received anymore on all devices. So When the user logs in on the affected device, all devices on that account stop receiving VoIP pushes (including the affected one). Logging out on the affected device restores delivery to other devices. What could cause this issue? It's only happening for this user so the configuration and mobile app PushKit code is working as intended.
1
0
170
Oct ’25
[App Store Server Notifications] ONE_TIME_CHARGE production release...
Dear Apple! During WWDC24 you announced that ONE_TIME_CHARGE notification is available on the sandbox environment and will be available "it will be available in production later this year" - it's March 2025 and there is still no production release of this feature. Could you share some timeline and plans for when we can expect that feature deployed to production? Thanks in advance!
1
0
93
May ’25
Are notification pushes not being received when in Picture-in-Picture mode?
Hello, I recently had an unusual experience, and I’m wondering if this is related to Apple’s policies, so I wanted to ask. While a call is in Picture-in-Picture (PIP) mode, notification pushes from the same app do not appear. The API is being triggered, but the notification banner does not show on the device. Once PIP is closed, the notifications start appearing normally again. Is this behavior enforced by Apple’s policies? What’s interesting is that banners from other apps do appear — only the banners from the app currently in PIP are not shown.
1
0
215
Dec ’25
Smart Adaptive Volume & Brightness - Say Goodbye to Noise & Visual Pollution!
Hello everyone in the iOS Devolution community! I'd like to share a suggestion that I believe would bring an unprecedented level of intelligence and comfort to the daily iPhone experience: Smart Adaptive Volume & Brightness. The Problem We Aim to Solve How many times has your iPhone rung too loudly in a quiet environment, embarrassing you in a meeting or waking someone up? Or, the opposite, you missed an important call on a busy street because the volume was too low? And what about screen brightness? It's a constant adjustment: too bright in the dark, hard to see in the sun. Currently, we have to manually adjust volume and brightness, or rely on Auto-Brightness (which only works for the screen) and Focus modes, which can be a bit "all or nothing." This leads to interruptions, frustration, and that feeling that your phone isn't really adapting to you. The Solution: Smart Adaptive Volume & Brightness My proposal is for iOS to use the iPhone's own sensors to dynamically adapt notification and ringtone volume, and screen brightness, to the environment we're in. How it would work in practice: Environmental Scan Before Ringing/Displaying: When a notification (call, message, app alert) is about to be delivered, and even before it makes a sound, the iPhone would briefly activate its sensors. The microphone would read the ambient noise level (in decibels), but without recording audio or analyzing any content. Just the "noise" of the surroundings. The ambient light sensor would assess the light intensity around the device. Intelligent and Coordinated Adjustment: Based on these combined readings of noise and brightness, iOS would make the adjustments: In noisy and bright environments (e.g., on the street during the day): The ringtone volume would be automatically increased to ensure you hear it, and the screen brightness would also be raised to facilitate viewing in strong light. In quiet and dark environments (e.g., cinema, bedroom at night): The volume would be discreetly reduced to avoid disturbances, and the screen brightness would be dimmed for your visual comfort and to avoid bothering others. Adjustments would be gradual, adapting to any type of environment (office, cafe, etc.). User Control: Of course, we'd have the option to enable or disable "Smart Adaptive Volume & Brightness" in the settings. We could also define minimum and maximum limits for these automatic adjustments, ensuring the iPhone adapts to our personal comfort levels. This feature would complement existing Focus modes, operating within the permissions of any active Focus. The Benefits for the User Goodbye to Inconvenient Interruptions: No more startling loud rings in quiet places. Never Miss a Call Again: In noisy environments, your iPhone will adapt to be heard. Constant Visual Comfort: The screen will always be at the ideal brightness, without blinding you in the dark or disappearing in the sun. Smoother Experience: Fewer manual adjustments, more time to focus on what matters. Guaranteed Privacy: The use of microphones and sensors would be strictly for environmental measurement, without recording or analyzing personal data. I believe this feature would bring a new level of intelligence and usability to iOS, making the iPhone even more intuitive and adapted to our daily lives. What do you all think of this idea?
1
0
92
Jun ’25
Critical Notifications
Hey Together, I have seen that critical notifications need to be confirmed by apple to be used. Sadly I couldn't figure out where to ask for that. Context: I have a sports tournament app for Beach Handball. There are a couple of Courts like up to 20-25. The main use for that in my app would be to notify first aiders/Medics. Right now they are called in via Speakers or by the referees just writing that into a WhatsApp chat. As this takes a long time and the speakers can be deactivated due to rain, power shortage or even the medics sometimes are not in range to exactly hear the speakers calling them. To Speed up this process I want them to download the App, Register via an E-Mail or a One Time Code. Now if a referee needs immediate Help from the Medics on their court they can send the Critical alert to the Medics without having to write a chat into a WhatsApp group, to get a call through the speakers 10 minutes later which the medics may not even hear. A couple of weeks ago we had a player falling on her back/neck/head and they couldn't figure out if she broke her neck or not. Luckily the medics were right next to the court and saw that. but what would happen if they were a couple hundred of meters away and did not notice that? I mean the PA system was off due to a power shortage. someone trying to move her? Risking her death? And while we are at it we could add those notifications if a team is missing to a court for a game that already should've started. Critical because it is urgent. Those notifications are handled with care.
1
0
70
Jul ’25
Unable to Receive APNs Device Token in Unity iOS App Despite Proper Configuration
I’m currently developing an iOS app built in Unity, exported to Xcode for signing and deployment. The app needs to register for Apple Push Notifications (APNs) to retrieve the device token and register it with a backend service (PlayFab). Despite enabling the required capabilities and entitlements, the app never receives a device token — the authorization request succeeds, but the token remains empty (req.DeviceToken is null in Unity). I’ve confirmed that the issue occurs before PlayFab or Firebase are involved, meaning the app never receives the token from Apple Push Notification service (APNs) itself. The Unity script I am using is: #if UNITY_IOS using UnityEngine; using Unity.Notifications.iOS; using PlayFab; using PlayFab.ClientModels; using System.Collections; using System; public class iOSPushInit : MonoBehaviour { private const int MaxRetries = 5; private const float RetryDelay = 2f; // seconds void Start() { Debug.Log("🛠 iOSPushInitDebug starting..."); StartCoroutine(RequestAuthorizationAndRegister()); } private IEnumerator RequestAuthorizationAndRegister() { // Request Alert + Badge + Sound permissions and register for remote notifications var authOptions = AuthorizationOption.Alert | AuthorizationOption.Badge | AuthorizationOption.Sound; using (var req = new AuthorizationRequest(authOptions, true)) { Debug.Log("⏳ Waiting for user authorization..."); while (!req.IsFinished) { yield return null; } Debug.Log($"🔔 Authorization finished at {DateTime.Now}: granted={req.Granted}, error={req.Error}"); if (!req.Granted) { Debug.LogError("❌ User denied notification permissions! Cannot get APNs token."); yield break; } // Authorization granted → check for device token int attempt = 0; string token = req.DeviceToken; Debug.Log($"req.DeviceToken: {req.DeviceToken}"); while (string.IsNullOrEmpty(token) && attempt < MaxRetries) { attempt++; Debug.Log($"ℹ️ APNs token not available yet. Attempt {attempt}/{MaxRetries}. Waiting {RetryDelay} seconds..."); yield return new WaitForSeconds(RetryDelay); token = req.DeviceToken; } if (string.IsNullOrEmpty(token)) { Debug.LogWarning("⚠️ APNs token still null after multiple attempts. Try again on next app launch."); yield break; } Debug.Log($"📱 APNs Token acquired at {DateTime.Now}: {token}"); // Register with PlayFab var request = new RegisterForIOSPushNotificationRequest { DeviceToken = token, SendPushNotificationConfirmation = false }; PlayFabClientAPI.RegisterForIOSPushNotification(request, result => Debug.Log("✅ APNs token successfully registered with PlayFab."), error => Debug.LogError("❌ Failed to register APNs token with PlayFab: " + error.GenerateErrorReport())); } } } #endif When running on a real device (not simulator), the following is logged in Xcode: 🔔 Authorization finished: granted=True, error= ℹ️ APNs token not yet available. Try again on next app launch. In the Xcode console, I do not see the expected APNs registration message: [Device] Registered for remote notifications with token: <...> Environment Details: Engine: Unity 6000.2.6f2 Notifications package: com.unity.mobile.notifications 2.4.2 Xcode: 16.4 (16F6) iOS Device: iPhone 12, iOS 26.0.1 Testing Method: Building directly from Unity → Xcode → real device Signing mode: Automatic (with correct Team selected) Certificates in account: Apple Development certificate (active) Apple Distribution certificate (active) Provisioning Profile: Type: App Store (also tested Development profile) Enabled Capabilities: Push Notifications, In-App Purchase App ID Capabilities: Push Notifications: Enabled Development SSL certificate: Present Production SSL certificate: Not generated (yet) Background Modes -> remote notifications What I Have Verified: ✅ Push Notifications capability is enabled in the Xcode target (not UnityFramework). ✅ Team and Bundle Identifier match my Apple Developer App ID. ✅ App ID has Push Notifications enabled in the Developer Portal. ✅ Tested on a real iOS device with working internet. ✅ Rebuilt and reinstalled app after enabling Push Notifications. ✅ Authorization dialog appears and permission is granted by user. How can I resolve this issue?
1
0
80
Jan ’26
Notifications not working
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?
1
0
249
Jul ’25
Push Notification Sound and Notification Service Extension When App is Killed
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
1
0
146
Apr ’25
Silent Notification Delivery Guarantee
We have been experimenting with silent notifications to update the content in our app and connected bluetooth peripheral at regular intervals. We are facing issues every once in a while with some users not receiving the notifications reliably even if the app is in the background and not killed. Is there a way we can ensure we reliably receive notifications every time without any issues? If there is no guaranteed delivery with silent notifications, then is there any other way that we can explore to achieve our use case?
1
0
125
Jan ’26
Which apns errors should cause us to remove the tokens from our server's db?
Having some discussion about when we should clear out a token from our servers. Docs say: Don’t retry notification responses with the error code BadDeviceToken, DeviceTokenNotForTopic, Forbidden, ExpiredToken, Unregistered, or PayloadTooLarge. You can retry with a delay, if you get the error code TooManyRequests. The way I see it is that with the exception of PayloadTooLarge, all other errors means you should remove the token from your server. Either because: The token is no longer good The token is good, but this is just not the right: environment (sandbox vs production) topic (the token is from a different bundle id or developer team) target (app vs live activity appex) Do I have it right? Extra context: when using the "JSON Web Token Validator" tool, a colleague reported that a 410 -Expired token (from couple days back) was still valid today. This raises questions about when tokens should actually be deleted and how these error codes should be interpreted. Also is it possible for the docs to get updated for us to explicitly know if a token should get removed and not leave it for interpretation?
1
0
150
Nov ’25
Can I enable push notifications in an iOS app built from a web app URL using PWA Builder?
Hi all, I have a React web app that we use as a Progressive Web App (PWA). We currently: Use PWA Builder to package it for Android and iOS Host the app on a secure HTTPS URL Use Firebase Cloud Messaging (FCM) for push notifications (working on Android) However, on iOS, we are unable to get push notifications to work. I understand that PWAs on iOS have limited push support (Safari only, and not through WebView). So I explored using Capacitor, but: Capacitor can load a server.url pointing to our hosted app (great for reuse), but push notifications don’t work If we build the web app locally (npm run build) and embed it in the native iOS shell via Capacitor, push works We would prefer not to fully merge our authentication and main app UIs if avoidable Questions: Is there any approved way to enable push notifications in an iOS .ipa built from a hosted web app (URL) using PWA Builder? If not, is embedding the web assets locally the only Apple-approved way to get push support? Are there any best practices or native plugin recommendations (e.g., APNs or FCM) for handling push notifications in iOS app? Thanks in advance for any guidance. 🙏 Let me know if more technical details would help.
1
0
128
Jun ’25
Clarification on APNs MDM Push Certificate per-customer requirement for MSP/multi-tenant MDM
Hello Apple Developer Community, We’re building an MDM product (SaaS, multi-tenant). I’d like clarification on the APNs MDM push certificate usage model for service providers (MSPs). Question: Is it acceptable for an MDM vendor to use a single APNs MDM push certificate owned by the vendor to manage devices for multiple, independent customer organizations? Or is it required/recommended that each customer (company) must obtain and use its own APNs MDM push certificate (issued under the customer’s Apple ID) for their tenant? Why we’re asking: We understand that many guides show the process where each customer logs into the Apple Push Certificates Portal with their own Apple ID, uploads a CSR provided by the MDM, and then renews yearly. Practically, for a small team and early-stage deployments, using one vendor-owned certificate across multiple tenants would be simpler. We want to ensure we’re not violating any policy, terms, or technical requirements (e.g., certificate ownership, topic binding, device token isolation, audit/compliance expectations). What we need from Apple (or authoritative sources): An official Apple document or policy that clearly states whether per-customer certificates are mandatory vs strongly recommended for MSP/multi-tenant MDMs. If per-customer is mandatory, please point to the relevant clause or section. If a vendor uses a single certificate for multiple organizations, what risks or consequences should we expect (e.g., compliance issues, supportability, potential program violations, off-boarding problems, etc.)? Context: We’re sending only MDM wake notifications (standard MDM flow). We understand certificates expire yearly and must be renewed with the same Apple ID to avoid device re-enrollment. We want to follow Apple’s best practices while keeping early operations manageable. Any guidance, links to official documentation, or clarification from Apple engineers/moderators would be greatly appreciated. Thank you!
1
0
197
Oct ’25
Clarification on Timing for Critical Alerts Approval in iOS
We are currently planning the development of an iOS healthcare application that will require the use of Critical Alerts. I understand that these notifications bypass Do Not Disturb and Silent mode, and therefore require special entitlement from Apple. We understand that Critical Alerts require a special entitlement from Apple. Could you please clarify: Do we need to request and obtain Apple’s approval for Critical Alerts before we begin development of the app? Or can we apply for this entitlement after we have a working build or prototype ready? We want to ensure compliance and streamline our development process, so any guidance on the appropriate timing for the entitlement request would be greatly appreciated.
1
0
98
Jul ’25