A women's lingerie and loungewear store on the OpenCart 2.2 platform with full customization of the standard theme according to the client's technical specifications. A complete overhaul of templates, controllers, and models has been carried out to expand functionality, and all necessary modules have been developed and adapted to meet the specific needs of the business. The operation of specific feeds for wholesale customers has been implemented, a custom points system has been created, and a module for processing catalogs from multiple manufacturers has been developed. Necessary payment, delivery modules, and other integrations have been connected and configured, and SEO work has been conducted in accordance with the technical specifications. The project provides flexible catalog management, process automation, and full compliance with the client's business processes.