Follow Button on Dashboard Working behavior in Lightning

If the User clicks on the "Follow" button on Dashboard, then the User will be notified via email on changes to any of the feed tracking enabled fields. The below screenshot will illustrate the possible fields to enable feed tracking.

Testing:

1.       * I myself clicked on the “Follow” button in one of the Dashboard.

2.      *  Updated the Dashboard “Description”.

3.       * Got the notification via email.

Note: “Feed Tracking” must be enabled to utilize the “Follow” option.