The summer marketing game of the probiotic brand Lactacare STOP 2017 aims to increase consumers’ knowledge about the product, by encouraging them to participate in a questionnaire.We developed a platform in which we included a set of closed questions. Each time a user enters the promo page, one of the questions is displayed at random. We devised a system by which some of the question will appear more frequently. If the answer is correct, the system sends the participant to a second step where he has to choose among 3 awards. The final stage is the completion of a registration form, after which the participant receives confirmation of his successful application. The platform includes a fault-recognition algorithm and allows users to return and change their response. All these promotional page features are accompanied by a beautiful design with inspirational summer images.