eBay Merchants who have large catalogs often have to resort to hours of labour to make changes to prices and quantities. eBay provide some services to aid in this kind of task, however the services they offer are not built for very large catalogs, catalogs that lack perfect SKU ranges, or catalogs that have a large number of variations.
Stock Man offers the ability to power through this sort of task by taking advantage of eBays Trading API. As long as you have a spreadsheet with valid stock changes, and an relatable identifier (ItemID, SKU, MPN, GTIN, EAN, ISBN, Title, etc…) Stock Man can push millions of changes to eBay without hassle.