The Wayback Machine - https://web.archive.org/web/20240327010557/https://docs.aws.amazon.com/notifications/latest/userguide/notification-hubs.html
Notification hubs - AWS User Notifications
Adding or removing a notification hubOpting-in or out of Regions

Notification hubs

Notification hubs are an account-level setting that identifies the AWS Regions where you store, process, and replicate notifications. You must select at least one notification hub before you create any notification configurations. If you have no notification hubs, the console prompts you to choose at least one before you create a notification configuration. You can also edit notification hubs from Notification hubs in the navigation pane. Currently, you can select up to three Regions.

Note

If you want to manage notification hubs, ensure you have the appropriate permissions. For more information, see Resource-level permissions.

Important

User Notifications uses Amazon Simple Email Service (Amazon SES) API endpoints to deliver email notifications. Amazon SES API endpoints aren't available in all Regions. For a list of Regions that support Amazon SES API endpoints, see Amazon Simple Email Service endpoints and quotas in the Amazon Web Services General Reference. User Notifications routes emails about events originating from Regions that aren't supported as Amazon SES API endpoints through US East (N. Virginia). If wanted, you can turn off the receipt of notification for events that originate in Regions that Amazon SES API endpoints don't support. To do so, don't configure emails for notification configurations that contain events in these Regions.

Important

Notification hubs only set the Regional boundaries of notifications. User Notifications stores the notification configuration's data in the default Region, US East (N. Virginia). This data is also stored in individual Regions that you have configured rules for. For example, say that you create a configuration that receives Amazon CloudWatch Alarm notifications about events in Europe (Milan) and Europe (Frankfurt). User Notifications creates the notification configuration in US East (N. Virginia). It then replicates the configuration to Europe (Milan) and Europe (Frankfurt).

Adding or removing a notification hub

You can add or remove a notification hub using the AWS Management Console. When you add a new notification hub, User Notifications replicates new notifications into that Region. User Notifications doesn’t backfill earlier notifications. When you remove a notification hub, User Notifications stops replicating new notifications into that Region. User Notifications doesn’t remove previous notifications from that Region. However, notifications expire 90 days after they are generated.

To add or remove notification hubs

  1. Open User Notifications in the AWS Management Console.

    1. In the navigation pane, choose Notification hubs.

  2. Choose Edit.

  3. Either add Regions by selecting them or remove Regions by choosing the × next to a Region.

  4. Choose Update.

Opting-in or out of Regions

Opting in or out of Regions may impact your notifications experience.

Opting-out of a notification hub

You must have a notification hub configured to create notification configurations. If you opt out of a Region that contains your only notification hub, you can't create new notification configurations. You also can't access previous notifications until you opt in to the Region or create a new notification hub.

Choosing a notification hub that you aren't opted-in to

You must opt in to a Region to use a notification hub you create in that Region. If you don't opt in to the Region, your notification hub remains inactive. You can't create notification configurations or view notifications until you opt in to that Region on your account or select a new notification hub.