To send image-based push notifications on iOS, Apple requires a separate Notification Service Identifier to be registered in your Apple Developer account. This identifier is linked to your existing app and enables rich notification content, such as images, to display correctly on Apple devices.
Requirements:
You’ll need your app’s App Bundle ID
How to register a Notification Service Identifier
Sign in to your Apple Developer account at https://developer.apple.com/account
Go to Certificates, IDs & Profiles, then select Identifiers
Click the + button to create a new identifier
Select App IDs, click Continue
Select App, click Continue
Fill in the identifier details:
In the Description field, enter Notification Service
For the Bundle ID, use your app’s existing Bundle ID and append .NotificationService
The final format should be:
your.app.bundleid.NotificationService
Under Capabilities, scroll to Push Notifications, enable it, then click Continue and Register
Let our Publishing team know once this is complete so they can process the update and include it in your next submission.
Pro tips
Make sure the Bundle ID exactly matches your existing app’s Bundle ID before adding .NotificationService.
This setup is only required for iOS apps that need image-based push notifications.