1. Enable/Disable MailChimp API.
2. Enable Mailchimp double option to send email to each subscriber to confirm that they subscribe to your list successfully. If they agree to subscribe, the data will be allowed to sync to the Mailchimp contact list.
3. Mailchimp API Key: You need to enter the Mailchimp API key to make it work. Click on the “here” to direct to the page you can create an API key on your Mailchimp account. Copy the API key to the “Mailchimp API Key” box in Woo Coupon Box Setting. Then, Click on the Save button.
4. Choose the Mailchimp list you want to work with Woo Coupon Box and save it again.