Yahoo! sends alert e-mails from time to time to your dashboard. The alert messages can range from some important issues or some specific information regarding your personal account. Sometimes, it become a problem to manage these alert messages. Yahoo! designs a new dashboard button for deleting alerts. With this button, one can easily delete an alert right from the dashboard home page, by clicking on the little trash can icon to the right of it.
Previously, one has to use the View All alerts screen to delete the alerts mails. This is not a big improvement, but the point is that Yahoo! Did it on the request of one of their advertiser.