Sign up to be an NauticEd Instructor here. Certifying a student for practical competence then becomes incredibly simple. You'll just login to the NauticEd site and search for your student, click on which practical course they passed and viola - it's done. Your student's logbook resume is automatically updated. NauticEd makes it simple!
Note: to be approved by NauticEd you must carry at least the minimum requirements for commercial vessel traffic operations in the country in which you conduct your schooling and testing. For Example you must legally be able to receive remuneration for captaining a passenger vessel - in the USA that is the USCG Captains 6 pax license. Additionally, you must be associated with a professional and established Sailing School.