How do you edit an audience?
You can edit an audience either in Salesforce or Mailchimp. If you edit the audience in Salesforce, it will instantly update Mailchimp. If you edit an audience in Mailchimp, it will appear in Salesforce when the sync next runs, typically every hour. You can also manually run the sync via the settings screen. Below is an interactive demo with sound covering the steps to editing an audience in Salesforce.