To integrate Active Campaign with Redeemware, 

1) Go to Integrations >> Autoresponder Integration

2)Click on Connect button 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 Your Active Campaign account is integrated with the tool.

Once it is integrated, then the button will be changed to Connected as shown in the image below,

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 store,

1)Go to store 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 store now.