On the Web: The 4 Catastrophic Mistakes of Any 
E-Commerce Website Upgrade

● How easy will it be for users to make changes 
or enhancements?

● Can the site grow over time as new functionality becomes available in the marketplace? How much will that cost?

By answering these questions up front, you can make an informed decision regarding your platform provider and avoid the trap of finding out too late that you can't change your site ... or that it would cost you an arm and a leg to do so.