Convertkit Integration

First, enter your API key in the Holler Box settings. Your Convertkit API key is on your account page.

You will also need your form ID. To get your form ID, visit Forms => your form. Look in the browser address bar, it should be something like this:

That number is the form ID, in this case it's 445667. Enter that number as the Convertkit form ID when you create your Holler Box. New subscribers will be added to this form.