-Go to contacts and click on your contact list name and then hit edit.

-Click on Nevermind, I want to view all tools

Select ConvertKit

Go to ConvertKit>Account Settings.

Click on "Show Secret API" and copy the API

Paste in the Hello Bar contact list and hit Connect

Select to either connect the list to a ConvertKit form and add a Tag or Hit "Done" to just add the email address to the ConvertKit Email list.