Subscription-based notifications Subscription-based notifications enable users to proactively subscribe to items that interest them and unsubscribe from messages that are not mandatory. Users can also specify additional notification channels that each of their notifications can be configured to use. Before users can manage the notifications that are sent to them, administrators must create email notifications to which users can subscribe. Administrators can also make subscription-based notifications mandatory so users cannot unsubscribe to them. Then users can subscribe or unsubscribe to the notifications, and add schedules and filters to the subscription to limit the notifications that can be received. Notifications that administrators mark as subscribable are automatically available in user notification settings. In previous releases, users had to wait until they received a notification before the subscription-based notification appeared in their notification settings. Administrators should create subscription-based notifications when they do not want to specify users for a notification and want to let users proactively subscribe to the notification. Subscriptions 2.0 plugin The Subscription Based Notifications 2.0 plugin must be active to use subscribable notifications. This plugin is active by default on all new and upgraded instances. The plugin installs the Notification Subscription [sys_notif_subscription] table, which holds user subscriptions to all notifications. Subscriptions and notification preferences Users can subscribe to notifications available to them through their notification preferences. In the UI16 interface, all users can set and modify their notification preferences through the Notifications tab of the System Settings window. In the UI15 interface and earlier, admins and users set their notification preferences through the Notification Preferences link in the User form. User notification preferences in UI16You can set your own notification preferences, including personal subscriptions and channels (devices) for receiving them. All users can set these preferences through the Notifications tab of the System Settings window.User notification preferences in UI15 and earlierIn UI15 and earlier interfaces, use the Notification Preferences link in the User form to manage the notifications that you can subscribe to. Create a service providerAdministrators can configure service providers for devices that use SMS.Make a notification mandatoryTo prevent users from turning off or deleting a subscription to a notification, make the notification mandatory.Force a notification to be sentTo force a notification to be sent to the specified users, enable forced delivery.Create a notification filterNotification filters enable a user to control the delivery of messages by creating special conditions on multiple tables in a single, reusable filter.Email unsubscribeAdministrators can add unsubscribe links to notifications so that users can stop receiving particular email messages.