The social media link which is displayed on the footer of your e-commerce site contains the link of your social media page or account. You can also edit or update the URL. On the other hand the social media link which is displayed on the product page of your ecommerce site contains the product sharing link. For example, by clicking on the facebook icon, the customer can share the product on his/her facebook account. To know more about social links, go to the helpcenter - https://help.storehippo.com/topic/social-links