You can find the NPC called Auctioneer in charges of auction in some cities or villages.  This NPC is willing to receive players of different professions to deal with him.

He charges deposit fees for all the things that will be auctioned beforehand.  If the commodity is sold successfully, he will give back the deposit fees, but if the commodity is not sold, the deposit fees will be left to him.

The commodity you get from the auction will be sent to your mailbox, you can get it from the Post Officer.

Browse the Auction Goods:

 

When you click on the auction NPC, you will see a blank form. You have a look at that to search what you need. The most popular search options includes:
The name of the item: type in the name of the item that you want.
The level range: type in the level range of the item that you need.
The rare rate: select one rare rate you need in the pull down menu.
The profession: select the right profession of the item that you need in the pull down menu.
Usable commodities: display all the auction commodities that suitable for your profession and your current level.
List of commodity classifications: display the commodity classifications that you need.

 

Bid:

 

Browse to check the quality and level of items with its lowest and highest price to choose the one you want to bid.  Click it and choose ‘Bid’, Auctioneer will take the chosen item’s lowest price away from you. At the end time of the auction, the person who gives the highest price won the bid.  If you lose the Bid, you money used to Bid will be return from you through mail.  If you choose Buy Now, you will buy this item at its highest price, and the item will be sent to your mail immediately.

 

 

 

Auction:

 

Both items and T-Points can be put to auction. Drag the item you want to sell to the blank below Sell Item, choose one Valid Time and set your cheapest and highest price before clicking Start. Certain Storage Fee will be charged by Auctioneer, The longer Valid Time you set, the more Deposit Fees you need to pay. If your item is sold successfully, Auctioneer will return the Deposit Fee to you. You can cancel your auction anytime. If your item is not sold within the Valid Time, it will be sent to your mailbox. For selling T-Points, only these kinds of 50,150 or 300 points can be sold at one time.