A course will not be visible to students until it is published, and once you have graded an assessment, you cannot unpublish your course. Read the steps below to learn how to publish your Canvas course.
Publishing Your Course:
1. Open your course and view the Course Home Page.
2. In the sidebar, click the "Publish" button.
3. Optional: choose a Home Page.
4. Click "Choose and Publish" to publish the course.
5. The "Course Status" on the sidebar will now show as published.