Alerts are emails automatically sent to users when an event occurs in a document. Users can follow the activity of a document, which means that they will receive an alert when an event occurs on the document itself.
Subscribing to alerts
You can subscribe to one or more documents selecting them and clicking on the Subscribe icon.
In the following dialog box you can choose to be notified about any event or just a selection of them.
Here you can select the events you are interested in and confirm the subscription.
Managing your subscriptions
To manage your subscriptions click the menu Personal->Subscriptions
You can see the list of items you are following, so to unsubscribe one of them right-click on it and choose Delete.
Subscribing other users
If you have the Subscription permission in the current folder, you can enter the Subscriptions tab in the document's details panel and subscribe users and groups.
Use the Add Group or Add User control to add the desired users, when you add a new subscription it will be configured to receive alerts of a default set of events but you can change this setting by right clicking on the item and choosing the menu Edit.
You can also follow a document by registering it's RSS feed, just click on the RSS feed icon.
For security reasons you will be asked to provide your credentials.