In order to use Optin Cat with your custom MailChimp groups follow these steps:
Before you begin:
Single Optin for MailChimp is available with all levels of Optin Cat Premium. Head here for details, or to purchase.
Make sure you have Integrated Mailchimp with Optin Cat, and have created your lists and groups already.
1. Go to Optin Cat > Settings > PowerUps and activate the Mailchimp Groups Option.
2. As Soon as you have entered your API key the following options will appear.
3. Select your desired list.
4. Then select your Interest Groups.
You can even select multiple groups for each form.
And you’ve now setup your Optin form to subscribe to your MailChimp Interest Groups.
If you still need assistance with this, or anything else regarding our plugins, please feel free contact our support at fatcatapps.com/support/.