Introduction of Promoted Listings
http://pages.ebay.com/seller-center/faq/stores.html#promoted-listings
Points to notice:
When you set up Promoted Listing through SoldEazy, you cannot revise this campaign on your eBay backend. You will see a non-clickable grey button next to the campaign on your eBay backend.
When you set up Promoted Listing directly on eBay, it will not be shown in SoldEazy system, thus you cannot edit it in SoldEazy.