External Watch lets external users subscribe to the pages they’ve given them access to. That’s good for them because it saves them time. It’s good for you because it makes collaboration more immediate so that work can progress faster.
On each shared page Watch for Changes section could be found. Subscribe button allows logged in users subscribe to the pages.
Subscription rules depend on share configuration.
A list of all user subscriptions is available on the Dashboard.
Unsubscribe button allows unsubscribe for changes.