✨ COB 101: What is Continuous Open Bidding (COB) and how is it different from Primary Recruitment? ✨ • Primary Recruitment is what people typically think of when they hear “Sorority recruitment.” It’s a formal process where potential new members (PNMs) meet the entire sorority community on your campus through multiple rounds and conversations. • COB occurs outside of primary recruitment and serves as an opportunity for women to join a sorority through an informal process in which chapters are pe