Setting up a Facebook shop is a cheap and easy way to start offering your products online. While not as robust as a full e-commerce solution, there are no monthly fees and setting up a shop enables a number of great ways to reach new and existing customers. For example, your Facebook page will get a new “Shop” tab, your products may be eligible to appear in Facebook Marketplace (depending on what you sell), and you’ll be able to tag your products in photos and stories you post to Instagram.
Before you get started, take a moment to review Facebook’s Merchant Terms. There is no fee to create the shop, but there is a 5% fee ($0.40 minimum) on all purchases. You are also responsible for taxes on your sales and shipping all orders within 3 business days.
Find more information here: https://www.engage121.com/setup-a-facebook-shop-and-instagram-shopping/