Facebook Retargeting Pixel: Custom Audiences:
Facebook retargeting pixels can have a specific audience added under a single pixel. This will allow you to simplify marketing by using one pixel for all of your Carrot sites, but having different advertisements setup based on pages visited. Which is really cool!
First, you’ll want to add your pixel to your site. If you haven’t done this already, here’s a step-by-step tutorial to help you through this process. Click to view how to add a Facebook Pixel to your site
This tutorial will walk you through how to create a custom audience for a Facebook retargeting pixel.
Here’s the video on how to create custom audiences: