Our client is an Retailer/Etailer and selling on marketplace. They wanted to build an analytical tool that will help them out to find the sales rank, mfn cost and fba cost for a list of items provided UPC/ASIN’s. We built a web interface where in the client can provide all the asins or upc’s that has to be monitored. The system will keep refreshing the data captured using MWS API development and Product Catalog API. This data is used by our client to identify items they can carry and analyze the margins.