See a contact’s Mailchimp audience status, rating and tags on the ticket.
In Mailchimp → Account → Extras → API keys, create a key (it ends in a data centre, e.g. -us21).
Mailchimp APIOpen Integrations → Connections → Mailchimp and paste the API key.
Click Test connection to confirm access.
The Marketing · Mailchimp card shows the contact’s subscription status, rating and tags.