How to set up
Navigate to the Settings menu and then the 3rd party integrations tab. Then for Campaign Monitor, turn the toggle switch to 'on'.
In the slide out window, enter your Client ID and API Key.
Finally, click 'Save' to activate.
How to use
When you're on the main Contacts page, you can select which contacts you would like to sync over to your Campaign Monitor account.
Select client(s)
Click on 'Sync' button
Choose 'Campaign Monitor'
Contacts without an email address will not be synced.
Syncing the same contact twice will not duplicate the contact in Campaign Monitor.