To connect Leadifly to Active Campaign, please make sure that you have followed the following steps:
1. Copy your 'API key' (found in the 'Developer Settings' of your Active Campaign account) and 'List ID' (when you visit your list page, look at the address bar and you will see listid parameter).
2. Paste them into the appropriate fields under the Leadifly Active Campaign tab. Click 'save changes'.
3. After you save your new credentials, you may also need to click the Validate Settings button, if it is visible.
4. In order to use Active Campaign, check the box which says 'Use Active Campaign'.