This document provides steps for using CalendarSnack to track RSVPs from a MailChimp email campaign. It outlines how to create a CalendarSnack, insert the code into a MailChimp email, and then view detailed tracking and reporting of who received and RSVPed to the calendar invitation that was sent from the email. The process allows marketers to track engagement from an email campaign by having users RSVP to a calendar event.