Google Tag Manager allows you to insert tracking codes into your site, for example a Facebook tracking pixel.
How to set it up:
Create and publish a tag in Google Tag Manager
In REC Admin > Connect > SEO and enter your Google Tag Manager Container ID
- In Google Tag Manager, Go to Latest Version > (the lower 3 dots in top corner) > Preview
- After the page refreshes, you should see a Google Tag Manager Box at the bottom of the screen with the new tag under "Tags on this page"