With the help of Adventure-based Learning™, DATEV field service personnel persuaded accounting firms to expand their businesses in the area of digital book-keeping, which enhanced their competitiveness. In the framework of the innovative business mode,l “Book-keeping with a Future,” which is based on the growing digitalization of the data moving between companies and the accounting firms, it is possible to identify crucial information needed for the management of a company. This creates additional advisory opportunities for the accountants. The Adventure attempts to persuade the accountanting firms that the model is beneficial, and attempts to motivate them to offer these additional services to their clients.