FirebaseMessaging Framework Reference

Constants

The following constants are available globally.

FIRMessagingRegistrationTokenRefreshedNotification
Notification sent when the FCM registration token has been refreshed. Please use the FIRMessaging delegate method messaging:didReceiveRegistrationToken: to receive current and updated tokens.
Declaration
Objective-C

extern NS_SWIFT_NAME const NSNotificationName FIRMessagingRegistrationTokenRefreshedNotification
FIRMessagingErrorDomain
The domain used for all errors in Messaging.
Declaration
Objective-C

extern NS_SWIFT_NAME NSString *const FIRMessagingErrorDomain

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2026-01-13 UTC.