API E-Commerce

Our client sells organic juice for delivery to 14 different locations, made from scratch at their restaurant. The have 4 flavors and 3 different sizes. We need an API that interfaces the order page (which we will create) to the subscription manager program ([login to view URL]). The API needs to allow customers to change their order, cancel their order, and postpone orders if they are on vacation. We also need a calendar that can be printed daily at 5pm, so the client knows how much to deliver, which size and flavor with the location and names of the customers.