We are seeking a tool to sync changes made between Amazon ASIN's and eBay listings. The tool would examine a list of ASIN's (which we would define, and which we would add to over time) and connect a list of ASIN’s for updates between Amazon and eBay. Updates would move from the ASIN to the eBay listing, but also from the ASIN between Amazon regions.
Amazon ASIN’s must be scanned per region (regions are UK, DE, FR, IT and ES). The best price from the region must be used where item can be shipped within 72 hours. This price update is then sync'd to the ebay listing, or the new Amazon listing we created (assumption being the ASIN may only be listed in FR, and we would create and connect a UK version).
The price+shipping must be converted into pounds. Third party free currency converter API's perhaps used here.
If a region changes price, the listing must update with the next best price from any region where the item is active.
If the ASIN goes out of stock, the ebay and 'our'...