EIS Machine is a 35+ year old custom machinery manufacturer that implemented Odoo to replace its legacy systems. It wanted an integrated ERP system to support its engineer-to-order (ETO) workflow across multiple brands. Key objectives for Odoo included flexible architecture to support high automation and optimization for ETO processes. Implementation included customizing CRM, BOM management, ETO workflows, project costing, attendance tracking, and payroll to support traceability and real-time cost reporting for customized manufacturing projects. Lessons learned included expecting customizations, early testing and training, and support from an Odoo-experienced accountant.