If you are unable to submit an assignment in Canvas, try the troubleshooting tips below.
View Content Type
In Canvas, you can submit an assignment, graded discussion, or quiz. Make sure you are in the right area of Canvas by viewing the navigation breadcrumbs  or the Course Navigation Menu .
You can access your assignment from the Assignments page , Discussions page , Quizzes page , or Modules page . If you are in another area in Canvas, try navigating to one of these pages.
To submit an assignment, click the Submit Assignment button.
To submit to a discussion, enter your response in the Reply field.
To take a quiz, click the Take the Quiz button for Classic Quizzes  or Begin button for New Quizzes .
View Submission Attempts
Your instructor may limit the number of submission attempts you are allotted for an assignment. If your assignment has a limited number of submissions, you can view the number of submission attempts you have made  and the number of submission allowed for the assignment .
Once you have used all your submission attempts, the Submit Assignment button displays as disabled .
View Submission Type
View the submission type for your assignment. If the submission type says No Submission or On Paper, you will not be able to submit the assignment in Canvas.
View Availability Dates
Your instructor may have set availability dates that determine when you can submit your assignment. If you are not within the availability dates, the assignment will display as locked and you will not be able to submit your assignment.
Note: The submission will not upload to Canvas if you are in the middle of submitting and the availability date passes.
View File Types
Your instructor may have restricted which file types can be submitted for your assignment. View the allowed file types to see which files you can use.