If the "Enroll Attendees to all Relevant Certifications" setting has not been enabled in your Continuing Education General Settings, you will need to manually enroll contacts to their certifications.
On the Continuing Education module's Overview tab, there is an "Action Required" section.
In this section you will find a list of potential enrollees and potentially, some enrolled contacts that require an action (such as admin approval) on a component. To enroll any of the contacts with a "Requires Approval of Enrollment to Proceed" description, click on the checkmark in the Actions column.
You will receive a popup asking for confirmation. If you are sure you wish to enroll this contact in the certification, click OK.
The contact will now be enrolled in the certification and will receive credits for their completed components.