This conference report details two integrated library system (ILS) migration projects from Innovative Interfaces, Inc.’s Millennium to ExLibris’ Alma from the perspective of an individual research library, Colorado State University, and a multi-university and college consortial environment, Connecticut State Colleges and Universities. Discussion topics include technical aspects of migrating ILS data and the psychological impact on staff. The authors also explore the benefits such as license record management and the analytics feature for statistical reports, and shortcomings of the migration project such as the overreliance on Basecamp and ExLibris’ support with migrating Innovative Interface’s ILS data.