This document discusses the development of a reusable e-commerce platform for multinational and multilingual websites for Guerlain and Make Up For Ever. The platform supports over 2,500 products across 16 countries and 25 languages. It was developed using Drupal over 12 months by 15 people and involved over 15,000 man hours. Key features include supporting independent content for each country, robust translation workflows, import/export of content and integration with SAP for orders and inventory. Performance was optimized through techniques like CDN, Varnish, caching, and static assets.