How does the Custom Audience Sync work?
In order to make your business grow you need your FB ads to reach new customers, which ultimately means that you need to keep updating your custom FB audience.
The good news is that you do not have to manually add contacts to your custom audience anymore - You can simply create an automated custom audience sync. Yes - Leads connector is a great tool for syncing leads that come from your Facebook ads. However, It can also do the opposite and have your FB custom audience synced based on data from these same applications.
So don't settle for using our sync tool in only one direction. Make sure to sync contacts back to your Facebook custom audience.
All you have to do is choose the application/platform and sync it with your Facebook custom audience-it's as simple as that.