To integrate Active Campaign with ThinkCoach, 

1) Go to Integrations >> Autoresponder Integration

2) Click on the arrow as shown in the image below, 

3) Enter the Active Campaign API URL and API key in the provided fields and then click on Save button

4) Now the Active Campaign account is integrated with the ThinkCoach.

Once it is integrated, the button will be changed to Connected

Follow the steps to get the API URL and API key from Active Campaign,

In the Active Campaign,

• Click on drop-down at the top right corner (near the username) and select My Settings.
• Click on Developer from the left side menus
• Copy the API URL and key as shown in the image.

To link the Autoresponder list to a campaign,

1) Go to My Campaigns and click on Actions as shown in the image below

2) Then click on Autoresponder,

Choose Active campaign from the list (under API integrations) and then the list to which you want to send the registered customers.

3) Then click on the Save button. The autoresponder is linked to your campaign now.