After you have purchased a digital edition for the Klett-Sprachen App, go to the license portal of Ernst Klett Sprachen at https://license-portal.klett-sprachen.de
a) Create an account / Login
Kindly create an account for the license portal with a valid email address and password. You have to use these login data to log into the Klett Sprachen App. If you already have an account for the license portal, you can simply log in.
b) Activate license code
Under "Activate license code", enter the license code that you received by email after purchasing.
Then open the Klett Sprachen App on your device and log in with the same access data that you use in the license portal. The purchased and activated digital editions are now available in your app library.