A product data feed is file of all products a merchant advertises online that is uploaded to networks for affiliates to use. The product data feed will include important details such as prices, images, descriptions, categorization, keywords, etc. When a merchant uploads a product data feed to the network, affiliates will then have access to download the full feed or select one-off products to add to their site. Anytime someone clicks on a link from a product datafeed, they'll automatically land on the product page on the merchants site.