Notification channels are named destinations (topics) that applications can publish messages to. Channels can be subscribed to by clients who are interested in receiving messages that are published to a channel.
For more information, see the PDN article Real-time applications and push notifications in the Pega Platform.
The landing page displays all the available notification channels.
Click Designer Studio > User Interface > Notification channels.
To create a notification channel based on a class instance and list of properties, click +Create.