On the Line Items page, entering information into the Manufacturer and Part Number fields is mandatory on all Buys that are marked with a Buy Description of Brand Name or Equal. With this type of Buy, the Buyer has a certain brand of product in mind, but is willing to consider alternatives offered by Sellers. In the Manufacturer field enter the name of the brand or company of the product you are offering, and in the Part Number field enter any identifying code or number series associated with the specific product. The Manufacturer and Part Number information you input is included in the bid results that are sent to the Buyer at the conclusion of the Buy. This allows them to easily compare the different product offerings provided by Sellers.