How do I enable Turnitin for an Assignment?
Note: The Turnitin feature must be enabled by your institution at the account-level for it to be available in your course. Contact your Canvas Administrator for more details.
Open More Options
Click the More Options button to edit the assignment
Add Assignment Details
Name the assignment , edit the assignment points , choose a due date , and set other assignment details. Select the Assignment Group . Click Show Advanced Options to see other options .
Open Turnitin Advanced Settings
Set Turnitin Settings
Set when the students can view the originality report by selecting the originality report dropdown menu . Choose what type of sources to compare the assignment submissions against  and the type of material you want Turnitin to ignore . Click the Update Settings button  to save the new settings.