Viver enrolled CB/I to run a strategic PPC campaign to promote its new feature “Viber public chat”, which lets users follow their favorite celebs, brands, and musicians... The campaign mission was to increase the number of followers via Viber for those influencers. Despite some challenges such as the restriction of advertising channels (only SEM, GDN, and Facebook click-to-website ads are allowed to be used), CB/I reached the KPI and performed this campaign very well.