People follow trends and when they see that their friends bought something they will more likely buy it as well. Use the power of social networks to amplify any purchase you do in your app.
When you use Liquid's Formulas, you'll select the audience, the action and the time.
Triggered In-App Message with request to share in social network
Activity based on event “Buy”
Select “All users” in the Audience screen.
Select In-App Message as the action and write a message requesting the user to share the purchase they just made. Add a botton with a link to the Facebook page.
Make the action Activity-based and select the option that is triggered by the “buy_product” event.