1.Log into Business Manager at business.facebook.com
2. Under the three bar drop down in the top left corner of the window, select “Audiences” under “Assets"
3. Select the blue “Create Audience” button and then choose “Custom Audience”
4. Select “Customer File”
5. Next, select “Import from MailChimp”
6. Follow the instructions to login to MailChimp.
7. Provide your MailChimp Username and Password in the pop-up window.
8. Select your list and create your audience