Why can’t I use my used textbook for a Canvas course? Why do only UBC Bookstore copies work?

All purchases are verified and connected to your CWL account for access, which requires you to purchase the materials through the UBC Bookstore in order to get a receipt that provides the redemption codes. Enter the order number (without the dash) listed on the receipt. See the text highlighted in yellow in the above seciton “Did you Purchase your Canvas Course Materials In-Store”. If you purchased your textbook secondhand from another student, there is no way for you to activate your course materials in Canvas.