To configure mailchimp integration you must find out your audience ID using this article's help - https://mailchimp.com/help/find-audience-id/
Copy the API key from your Settings page > Extras > API Keys.
Optionally you can add Tags to your mailchimp account and use it in the next step for integration.
Now navigate to InstaWP and Add New Integration and paste your API key and Audience ID into the modal box and provide an alias for this integration. (You can input your Tags here as well).
Now your Mailchimp integration is ready to be used. One key integration with Mailchimp is with Shared Templates. You can link a Shared Template with Mailchimp, so that any emails collected when a new site is created using the shared template link will automatically synced with Mailchimp.
Edit your template using the pencil icon and open the last tab (Advanced Options). You can now select your integration here.
Updated about 2 months ago