REOEDGE REO Management System is a highly specialized and comprehensive database that runs using ACT! 2009 or higher. All minimum system requirements are based on a single-user environment (one computer accessing a local database). In a shared environment, ACT! by Sage is designed to work with up to 10 users; ACT! by Sage Premium Solutions are intended for more than 10 users. Recommended server system requirements are for environments of more than one user. See ACT! minimum requirements here.