Whether it’s someone who visited your page or clicked on your ad, you can now choose different engagements from the past 365 days to reach people who have interacted with your business on Facebook. You are free to select one or multiple Facebook pages for your data set and you can scale your audience to any size you like (up to 10% of country’s population on Facebook).
Select Page engagements in the “New Audience” section
Select your page and type of engagement for audience creation. Select lookalikes if you wish to ensure scalability and increase in your audience.