A great way to re-engage users is to reach those users via Facebook ads using Facebook Custom Audiences. With Facebook Custom Audiences you can send Facebook Ad campaigns directly to user segments you define in CleverTap.
Simply create a user segment and define which Facebook Adset you’d like to associate. There is no special integration required to support Facebook Custom Audiences.
Target users who have slipped away from your App with a “win-back” ad on Facebook
Show a user the catalog item they were viewing in your App in an ad on Facebook
Show users who have viewed a product in your App a related product in a Facebook Ad