Notification states that are used by the platform when handling notifications. These states can also be used in your custom logic for processing notifications on the client or on the server side. Defaults to "Active".

• "Active" - a notification can be marked as active when it is raised, but the user hasn't seen it, or interacted in any way with it yet;
• "Acknowledged" - a notification can be marked as acknowledged when the user has interacted with it by clicking on the notification or on an action in it;
• "Seen" - a notification can be marked as seen when the user has seen it (e.g., by opening the Notification Panel);
• "Closed" - a notification can be marked as closed when the user has closed the notification in the Notification Panel;
• "Stale" - a notification can be marked as stale after a predefined period of time;
• "Snoozed" - a notification can be marked as snoozed when the user snoozes it from the UI;
• "Processing" - a notification can be marked as "Processing" when its state is in the process of changing (e.g., the user interacts with a notification from the UI, you make a request to a remote service to update the notification state, and you are still waiting for a response);

• "Active"
• "Acknowledged"
• "Seen"
• "Closed"
• "Stale"
• "Snoozed"
• "Processing"