Select "Gradebook setup" from the course administration menu in your course.
Scroll down and click on the "Add grade item" button near the bottom of the page.
Give your grade item a name corresponding to the assessment name you want to track.
Under “Grade type,” select “Scale.”
Under “Scale,” select “Complete/Incomplete.”
If you would like to hide the grade item from student view, check the box next to “Hidden.”
Click the "Save changes" button.