Amazon MWS supports the management of seller listings for items to be sold on Amazon. Listings can be added, deleted, or modified with Amazon MWS. A variety of specialized feed formats are supported to meet a wide range of seller needs. For example, new products can be added to the Amazon catalog by using MWS supported feeds to define new product detail pages on Amazon. High volume changes such as product price and quantity updates can be updated using a simplified price and quantity feed that minimizes the data that sellers must provide.