Instructors can only interact with students in a Canvas course between the start date and end date of the course. Between the start and end dates, instructors can send Canvas Announcements and Conversations (i.e. emails). If the end date of the course is past, instructors should email their former students through My.Butler.
 

To message Students through Canvas:

First extend the course end date:

Instructors can only override the default end date when the course is active (e.g. between the start and end dates). View the How do I change the start and end dates for a course? Canvas article for more information.

1. In the Canvas course, select Settings.
2. Select Course Details.
3. Enter a new date in the Ends field.
4. Select Update Course Details. 

Then send an announcement:

1. Create an announcement in your course. When you save the announcement, a notification will be sent to your students.

To message Students through My.Butler:

1. Select Faculty Center.
2. Select Instructor quick links.
3. View your Class Roster.
4. Scroll to the bottom of your class roster and select Notify All Students.
5. Enter your Subject and Message Text. Then click Send Notification.