On Mercado Libre you can list under different conditions, and then change, pause, relist, and end listings whenever you want. Moreover, you can add other sellers’ listings to favorites, ask and answer questions, share in social media, etc. There are different types of listings: on the one hand, we have the products for which you can bid. A bid is placed, a purchase order is created, the parties exchange contact information, a payment is generated, the parties rate each other, end. When listing this type of products, you will be able to work with search, question, and answer management systems, manage stock and variations of the same product, and manage sales, shipping and ratings.