Buy with Prime can take the headache out of fulfillment. An asset purchase agreement (APA) is a legally binding agreement used when a company wishes to buy or sell specific assets of another business.Buy with Prime lets you display the Prime logo and delivery promise on your own website. Read on to understand what you need to get started, walk through the setup steps, and learn about additional resources available to Buy with Prime merchants. IMS is a leading provider of differentiated mission capabilities and primesystems integration for the air, land and sea domains.