access code

A code that verifies purchase of a specific digital product such as course access or a Cengage Unlimited subscription.

The access code might be included with a textbook purchase or purchased from a bookstore or other retailer. When purchased directly from Cengage, the access code is applied automatically and does not need to be redeemed to verify the purchase.

Each access code is valid only once and only for the specific product purchased.

Often confused with class key.