Product Unique Code in Odoo helps businesses avoid duplicate product records by ensuring that each product has a unique internal reference code. When users create or update a product, the system automatically checks the internal code and prevents duplicates. This keeps product data clean, accurate, and well organized. The app is useful for inventory, sales, and purchase teams who rely on correct product information. With unique product codes, users can reduce errors, improve stock management, and maintain consistency across reports and transactions.