This Practice Note is aimed at brands wishing to engage with influencers (or other talent) for particular social marketing campaigns and advertising promotions in Portugal. It covers: the applicable legal framework in Portugal, what kind of publications are regulated including what constitutes a ‘commercial communication’ for the purposes of regulation, disclosure requirements, additional requirements where publication deals with consumer credit, health claims, alcohol, minors, and betting and gambling. The Practice Note also covers sanctions and risks, and key provisions in Portugal focused agreements.