The link below is a short video that will refresh you on how sync your Google Classroom with EdPuzzle
Edpuzzle Sync with Google Classroom
Also some of you may have students who have been added to your existing classes. If this is the case, you need to re-sync your existing classes to pull in any students that may have been added. The link below shows you where you can do that!
Update Existing Classes in EdPuzzle
If you are a neat freak and like to keep your accounts tidy, here is how you can archive classes in Edpuzzle