Which of the following is NOT a product type in Magento?

In Magento, the platform defines specific product types to facilitate various business needs and customer experiences. The recognized product types include simple products, grouped products, and bundled products, each serving distinct functions in inventory management and customer purchasing processes.

Simple products are individual items without any variations, grouped products allow customers to purchase related items together as a single entity, and bundled products enable sellers to offer customizable packages of products. These well-defined product types are crucial for structuring an online store's catalog.

"Customized products," however, is not a defined product type in Magento. While Magento does support product customization through various means—such as custom options and configurable products—the term "customized products" does not represent a specific category recognized by the Magento architecture. This distinction clarifies why this option is not a valid product type within the platform.