I think there's an easier way. Piazza has a "Set an access code to enroll" feature on the following page (third option down on the left column) https://piazza

I think there's an easier way. Piazza has a "Set an access code to enroll" feature on the following page (third option down on the left column) https://piazza.com/product/features https://piazza.com/product/features To limit enrollment in your class, by default a school email domain is required to self-enroll. If your school does not provide students with school email addresses, instead a class access code is automatically set to limit enrollment in your class.