Publishing/Unpublishing items in Canvas
A common feature in Canvas is the gray/green icon that indicates whether or not an item is published and thereby visible to students. Most items an instructor creates in their Canvas course (files, assignments, pages, modules, etc.) must be published before they are visible to students. In addition to individual items within a course, the course itself must be published before students can access it.
Published content in Canvas is indicated by a green checkmark as published status.
Unpublished content is indicated by a gray circle icon with slash through it.
The status of your course displays in the upper-right corner of your course's Home page. Your course must be published before students can access it. Once a course has been published and a student submission has been graded, the course can no longer be unpublished.
See this guide on how to publish a course Links to an external site..
See this guide on how to publish a page Links to an external site..
See this guide on how to publish a module Links to an external site..
See this guide on how to publish an assignment Links to an external site..