So, here is how to get started.
Get the Meribook Webhook URL from your campaign.
Step 1: Copy the Webhook URL from your Campaign
Campaigns > Your Book Name > Campaign Name > Edit
Step 2: Login to Convertbox and edit one of the Convertbox you want to configure with Webhook
Goto "Customize" tab and Click on "opt-in form" element
Click "Setup form actions" and "Add a new form action"
From the "Use Integration" dropdown list
Select 'Webhook' and paste the URL from your Meribook campaign in the "Webhook url" field.
Step 5: Configure further as needed and Save.
You have configured your Convertbox popup so that the person who fills out the form will now get access to your content inside Meribook.