Lead Gen & CRM Ads has the ability to serve your Facebook ads through the Facebook Audience Network within your Facebook campaigns.
Facebook Audience Network will help extend your reach beyond standard Facebook ads. Using FAN, your ads will reach your audiences on websites and apps across devices such as computers, mobile devices and more. Using FAN within your campaigns is a great way to keep your ads in front of your site visitors even when they're not browsing Facebook. For more information on FAN, visit Facebook.
To use FAN in your campaigns, launch a Facebook campaign or edit an existing campaign. From your Dashboard, click Launch New Campaign > Facebook Campaign.
Click the Placement tab and select "Edit Placements" to use custom Ad Placements.
Select the "Audience Network" option to enable/disable your ads on FAN. This is set to on by default.
Finish creating your campaign as you normally would, and that's it! Your ads will serve through Facebook Audience Network automatically.