Used mainly for multi-item auctions (Dutch). For an active listing, indicates the number of items the user stands to win if their bid wins. For a listing that has ended, indicates the number of items the user actually won. In both cases, the number may be less than that returned in QuantityBid, the user with the lowest winning bid in a Dutch auction might not win all the items on which they bid.
Note: As of version 619, Dutch-style (multi-item) competitive-bid auctions are deprecated. eBay throws an error if you submit a Dutch item listing with AddItem or VerifyAddItem. If you use RelistItem to update a Dutch auction listing, eBay generates a warning and resets the Quantity value to 1.
See the
Field Index to learn which calls use QuantityWon.