From inside your course, select COURSE ADMIN
On the Course Admin screen, select QUIZZES.
On the screen which lists all the Quizzes in your course, find the drop down menu chevron button and select it.
From the menu that appears, select the "Edit" button.
On the "Edit Quiz" screen that appears, On your right hand side of the screen there is a side panel where you can see "Evaluation and Feedback" Section , click on it to reveal full details.
On the assessment screen select a grade item using the the drop-down menu under "Grade Item", then select the checkbox under "Auto Export to Grades"
Finally, select the "Save and Close" button to save the settings for the grade item.