- Log into your Campaign Monitor account
- Click on "Account Settings" in the top menu (4th item)
- Your API key will be visible once you click the "Show API Key" link.
- Log into your Campaign Monitor account
- Click on "Clients" in the top menu (1st item)
- Select your Client
- Navigate to the "List & Subscribers" tab
- Slelect your List
- Just under the name of your list click on the small (change name/type) link.
- Your API Subscriber List ID will be now visible