Edit the Open Graph meta tag to change the text that describes your website when you share its link.
The Open Graph meta tag allows you to set up the information that is displayed when you share a link to your store (store title and name, description and image).
Settings
1. Go to [My Store>Store setup>Search Engine Optimization] on your admin page.
2. Click on [Advanced settings (tab)] and scroll down to [Open Graph tag settings]. Add the title of your choice to og:title: and the description in og:description: .
3. Click on [Save] at the bottom of the page to save your settings.