To connect Leadifly to MailChimp, please make sure that you have followed the following steps.
1. Copy your 'API key' (found on the account page of your MailChimp account) and 'List ID' (found on the list details page of your MailChimp account).
2. To get your List ID, go to your list page and click Settings > List Name and Defaults.
3. The list ID will follows where it says "Typically, this is what they want:" Paste them into the appropriate fields under the Leadifly MailChimp tab.
4. Click 'save changes'.
5. After you save your new credentials, you may also need to click the 'Validate Settings' button, if it is visible.
6. In order to use MailChimp, check the box which says 'Use MailChimp'.