In order to correctly connect Mailchimp with the customer's account in the QuarticOn panel, configure the webhook address to which queries from Mailchimp to QuarticOn will be sent.
Our endpoint address is https://webhook.quarticon.com/mailchimp.
Follow the below steps to configure it in Mailchimp.
1. Go to the Audience tab and click Settings.
2. Then go to the Webhooks tab...
...and click Create New Webhook.
In the Callback URL field, enter https://webhook.quarticon.com/mailchimp.
Make sure that all boxes shown in the screenshot are selected. If yes, click Save.
The webhook is set up correctly.