1. ERP systems can help small businesses when inventory levels, sales forecasts, and order fulfillment become difficult to manage with spreadsheets alone. 2. While large companies follow proven ERP implementation methodologies, small business implementations may merge phases or improvise to achieve flexibility and success. 3. Popular ERP packages for small businesses include SAP Business One, Odoo, and Ebizframe 10 which provide functionality across financials, operations, human resources, and more.