You can access the Messages sub-module by clicking Options > Messages from the LHS menu. Upon clicking this link, the Messages page is displayed as depicted in the following figure:
The Messages page displays the existing list with details such as Name, Active, and Type.
You can click the 
button to view the additional fields such as Message, Audience Type, Number of Counts – Days, Start Date, Audience Members, End Date, Accept Url, Decline Url, Created Date, and Modified Date.