Guide

1. Go to the left-side panel and then click 'Settings'.

2. Scroll down to Extensions, then click 'Integrations'.

3. Find Mailchimp from the list and click 'Connect Mailchimp Account' below it.

4. Provide your Mailchimp user credentials and then tap 'Log In' to proceed.

5. Click 'Allow' to agree with the terms and grant the necessary permission.

6. After completing these steps, you should see your Mailchimp account finally listed on the integration page.