One of the features of eBay’s new “Best Match” algorithm is that it takes into account recent sales. If your multiple quantity fixed price listing has sales it will be given a boost in the best match sort compared to those listings that have had fewer sales. This boost is also carried over to the first relist as long as you don’t change it significantly (title, price, etc). Along with recent fee changes, this part of the algorithm encourages eBay sellers to place all their inventory within fewer listings.
The problem with this is that it goes contrary to buyer behavior. A buyer is more likely to purchase an item from a seller if only a few remain. A seller who lists all their items in one listing may find themselves with little or no sales compared to one who only lists a fraction of their inventory within the listing.
This site will automatically manage a sellers fixed price listings so they can keep an artificially low quantity visible to their buyers without risking selling out of the listing and having to relist. All the seller has to do is tell us the quantity in stock and the quantity to maintain in the listing. We’ll refresh your inventory anytime a buyer makes a purchase until you run out. We free up the seller to do other activities such as improving the buyer experience.