What is Facebook Pixel custom audience?

A Facebook Pixel Custom Audience is a type of audience created by Facebook that consists of users who have interacted with an advertiser's website, app, or other online content tracked by the Facebook Pixel. The Facebook Pixel is a piece of code installed on the advertiser's website or app that tracks user interactions and behavior, such as page views, product views, add-to-cart actions, and conversions.

Here's how the process works:

1. **Pixel Installation**: The advertiser installs the Facebook Pixel on their website or app. The Pixel starts tracking user interactions and sending data to Facebook.

2. **Custom Audience Creation**: Using the data collected by the Facebook Pixel, the advertiser creates a Custom Audience based on specific criteria or actions taken by users on their website or app. For example, the advertiser can create a Custom Audience of users who have visited a specific product page, added items to their shopping cart but didn't complete a purchase, or completed a purchase in the past 30 days.

3. **Ad Targeting**: Once the Custom Audience is created, the advertiser can use it as a target audience for their Facebook and Instagram ad campaigns. They can create ads specifically tailored to the interests and behaviors of the Custom Audience, such as promoting related products, offering discounts or incentives to complete a purchase, or encouraging repeat purchases from existing customers.

Facebook Pixel Custom Audiences allow advertisers to target users who have already shown interest in their products or services, making them highly valuable for retargeting and remarketing campaigns. By leveraging Custom Audiences, advertisers can improve ad relevance, increase conversion rates, and drive better campaign performance on Facebook and Instagram.