What you want to ask is whether the selected items can't be sold in the game "scum" Merchants are not in the green circle, don't click on merchants, and don't choose goods to sell.

1, the businessman is not in the green circle: in the game, the businessman will not stay in the same place all the time, he will walk back and forth in a room of the building. Players need to trade with businessmen in the green circle where they are located.

2, did not click on the merchant: in the green circle, you need to click on the merchant to trade with it. If you don't click on the merchant, you can't trade.

3. No item selected for sale: In the transaction interface, you need to select the item to be sold first, and then click the sell button. If no items are selected for sale, clicking the sell button is invalid.