WooCommerce UPC EAN and ISBN is a WordPress plugin designed to enhance product listings by integrating Global Trade Item Numbers (GTINs) such as UPC, EAN, and ISBN. This tool is essential for sellers looking to comply with marketplace requirements, particularly for platforms like Google and Amazon. It supports a variety of product types, including simple, variable, composite, and bundled products, making it versatile for different e-commerce needs.

The plugin offers several key features, such as the ability to add GTINs for main products and individual variations. Users can choose to display the GTIN on product pages, customize it to alternate text, and incorporate it into structured product data. Additionally, it is compatible with product feeds, facilitating integration with services like Google Shopping, provided a feed plugin is also in use.