Yes, you can set the quantity and price. You can set the minimum order quantity to one piece [actually equal to one piece of retail]. For example, you can set 1 piece to 280 yuan, 3 pieces to 250 yuan, and 5 pieces to 200 yuan. The more you order, the cheaper the price will be. Set the price according to your own products and set it when uploading the products.

If you are a buyer, see how the merchant sets the minimum order quantity. Many of them only require one piece to get the goods. You can also ask the merchant. Thank you

Alibaba is mainly engaged in wholesale, which does not mean that it can only do wholesale. Retail is also possible, but the effect of retail will not be very good, because Alibaba's main customers are merchants, and Taobao's main customers are individuals. Alibaba's retail will not be cheaper than Taobao.