AciGrup is a hotel booking engine, a solution a hotel uses on its website used for processing online reservations. Important distribution channel. The company AciGrup is a hotel booking engine, an application on hotel websites used to process direct online reservations. Important distribution channel. YieldPlanet is integrated with over 400 channels to help hoteliers reach a global market. YieldPlanet’s partners include OTAs, Sharing Economy OTAs, Tour Operators, wholesalers, PMSes, CRSes, GDSes, RMSes, mobile apps, metasearches and booking engines.