The Global Trade Item Number (GTIN) is a unique identifier for products, used internationally to facilitate trade. It is part of the Global Standards One (GS1) system, which helps businesses manage their inventory and sales more efficiently. GTINs can be found in various formats, including UPC and EAN codes, and are essential for tracking products throughout the supply chain. GTINs enable retailers, manufacturers, and distributors to quickly identify items, reducing errors and improving customer service. By standardizing product identification, GTINs support global commerce, making it easier for businesses to operate across borders and ensuring that consumers can find the products they need.