First, navigate to the campaign where you'd like to connect the Campaign Monitor integration, then click "Integrations" from the menu on the left side of the screen.

Next, either search Campaign Monitor in the upper right search box, or click the Email category, then click Campaign Monitor.

Then click Connect Account.

In the window that appears, enter your username/email address and your password for the Campaign Monitor account that contains the campaigns that you would like to connect. Then, click "Save".

The integration will then be complete, and your client's Campaign Monitor metrics will then be imported and displayed within the dashboard.