One of the first things I did after creating our online Zen Cart store was to write code to integrate it with our Ebay store. The code adds new listings to eBay when we add new products to our Zen Cart store. Then it keeps the eBay and Zen Cart inventories in sync as products are sold and restocked.
The original code was written quickly for Zen Cart 1.3.9a and served us well for many years. But when we finally upgraded to version 1.5.7a/b I decided to take a bit more time to make the code more maintainable and presentable.
This post is a first in a series describing the eBay Integration for Zen Cart project. The code is not quite ready to share yet, but when it is, I will offer it as a free download.