Course Settings: Course Details and Sections
The video mentions the TEST and BETA environments. This Canvas Community document Links to an external site. explains those environments and how they work.
CAUTION: DO NOT build course material in TEST or BETA. It will be overwritten every one to three weeks. Test and Beta are designed to be a safe place to experiment, not a place to build course content.
The video mentions Sections and People.
CAUTION: If your school or district automatically creates your sections and students for you, DO NOT add or remove sections or people on your own. If your sections or people are incorrect, contact your school or district Canvas administrator.