Sage is the name for the mid market Sage ERP line of enterprise management and accounting applications (formerly Sage ACCPAC), primarily serving small and medium-sized businesses. Since , Sage is developed by Sage. In , Sage renamed ACCPAC to Sage Nov 01, · The newest version of Sage ERP (formerly Sage ERP Accpac) is version and has many features that may benefit your business. Many of these features have been built into the core product while others are cloud-based extensions. I've listed new features below and provided links into Sage. Contents Introduction 1 Chapter1:SettingUpInventory Control 5 SettingUpInventoryControl 5 AboutUsingInventoryControlwithOtherSageERPPrograms 7.