The buy price is the price at which a seller is willing to close their auction immediately and sell their item. If a bidder offers a bid equal to the auction's buy price, that bidder automatically wins the auction. However, the buy price doesn't have to be met in order for an auction to close with a sale.

How does a buy price affect automatic bidding?

It's important to remember that when you bid the buy price on an auction, you're choosing to win the auction immediately for that exact price. Therefore, by bidding the buy price, you override the automatic bidding process. If you prefer to use automatic bidding when bidding on an auction that has a buy price, make sure to place your maximum bid below the buy price amount.