Now that you have the Magical Chrome extension installed, let's discuss how to transfer data from Mailchimp to Facebook Custom Audiences for more efficient audience targeting. Follow these steps:

1. Sign in to your Mailchimp account and open the list containing the data you want to transfer, such as subscriber information.
2. In Mailchimp, label the information you want to transfer with Magical, like Email, First Name, Last Name, or Subscription Status.
3. Sign in to your Facebook account and open the Custom Audiences where you want to add the Mailchimp data.
4. Type "//" in an empty field and select the information you want to transfer from Mailchimp such as Email, First Name, etc.
5. The next time you fill out a record, Magical will automatically transfer all the fields into the form with one click.