1. It is recommended that you select a "Default Campaign" from the schedule popup editor. The Default Campaign will play automatically if you have not assigned a campaign to the display. Any campaign assigned to the display will then override the Default Campaign.
2. Once you click on the calendar to schedule a campaign, a pop-up will appear to select your preferred campaign and to set the start date & end dates, times for the campaign to run.
Note that the display will go to sleep if there is no campaign scheduled in the calendar.