A reserve price is the minimum a seller would be willing to accept from a bidder. A reserve price is similar to a starting bid but is not necessarily disclosed to bidders and may be higher than the starting bid.

In WinningBidder.com, you can set a starting bid but not a reserve price. As workarounds, you can either set the starting bid equal to your reserve price (recommended), or leverage the transition to in-person auction setting to prevent the auction from sending invoices at your auction close, then voiding bids if they don't meet the reserve before sending invoices.