We are in the process of launching an internet retail store, and need the following:
1. The ability to use real-time USPS rates when calculating shipping for First Class and Priority Mail.
2. The ability to prevent users from selecting first class mail on items over a specified weight.
3. The ability to show the in stock/out of stock stock status on item pages. This would involve the Availability message changing for whether its in or out of stock for each item, as well as when a certain option or combination of options for the item are selected. This would be tied in with the real-time inventory link from our Stone Edge order management system.
We require that you have experience with Yahoo Stores and Stone Edge order manager.