Social media platforms are one of the easiest platforms to start selling online. I say easiest because social sites have hundreds of millions active users and you can immediately generate sales. If you want to sell on social site, first you need to build followers. The more followers you have, the more visibility your products will get, leading to more sales and profits. For you need to keep very low profit margins and as you gain loyal followers and positive feedback, you can gradually increase your profit margin. You need to focus on building a reputation as a seller, which will ultimately have you repeat buyers. With a solid reputation and repeat buyers, your business will continue to grow.