Start and end dates specify when learners can access a topic or module. If you set a start, end, or due date for a topic or module, it appears on the Upcoming Events page and the Agenda view in the Calendar tool. Setting an end date later than the due date for a topic enables learners to access and complete the topic from the Overdue tab on the Course Schedule page. Topics with a due date and no end date also appear in the Overdue tab on the Course Schedule page.