You simply take your item to the auction house, and specify a price to let it sell at. You pay half of the low alch value of the item t put your item on the market. You recieve an Auction ticket (believe bank note) of your product stating that you offered it, then you wait. If your item is sold within 24 hours, you will find a little notification saying your product was sold, and you may return to the auction house with your auction ticket to pick up your money. In case your item isn't sold within 24 hours, then you return to the auction house with your auction ticket and then choose back your items, or rinse and repeat.

You'd go the auction house, and search for the item you need. If they have countless sales of the product, you might browse through and find the right amount and cost for you! Then you press buy, and a conformation display would confirm your purchase, and you have the item, and the auction house takes the cash. Each planet would have 2 auction houses, 1 on f2p side and 1 on p2p side.

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