If the upgrade deadline has not passed, you can find the upgrade deadline on the right side of the course homepage under Important Dates.
If this date is not posted on the course homepage, the deadline has passed and it is no longer possible to upgrade.
Most courses allow upgrading until 10 days before the end of the course, but some instructor-paced courses may set this deadline sooner.
To upgrade to a verified certificate
Click on the Upgrade button under the course on your dashboard or on the right side of the course tab.
Where's the course homepage?
To navigate to the course homepage from your dashboard, click the title of the course.
To navigate to the course homepage from any page within the course, click the Course tab in the course's navigation menu.