- To activate your licence, visit the Ernst Klett Sprachen licence portal: https://lizenz-portal.klett-sprachen.de
- Sign in with your email address/username or create an account.
- Activate your licence code.
- Open the Klett Sprachen App or the web app on your computer or tablet.
- Log in to the Klett Sprachen App with the same access data that you entered in the licence portal. You can now access your book.