Every book user must first purchase a licence code for a BlinkLearning digital edition on www.klett-sprachen.de. This licence code must be activated in the 'Contents' section of your BlinkLearning account.
In order to use the book in your class, it is necessary to first activate a licence code. If you are having problems, please check whether there are other books in your classroom for which you may not (yet) have purchased and activated a licence code.