When you connect Catermonkey to Mailchimp, your existing customers are added to your Mailchimp audience straight away. After that, any new customers you add, or existing ones you update, are carried across every hour, so your mailing list stays current without any copy-and-pasting. That means your Mailchimp campaigns are always working from the right customer data, whether you're sending seasonal menus, event follow-ups, or anything else you have planned.