A sandbox course serves as an unofficial course site without enrollment data. You can complete a brief form to request a personal sandbox site or a course sandbox site.
Personal Sandbox site:
A site you can use to experiment with Canvas tools and features.
Early Course Sandbox site:
A site you can use to begin building out your official course prior to the creation of your official course site for a future term. Yale creates official course sites after the course schedule and calendar are finalized by the University Registrar.