When connecting your ActiveCampaign account to Productive, you are asked for 3 things.
Account Name (Organization)
For instant guidance, you can also look at the screenshots below, on where to find your ActiveCampaign details to enter in Productive.
In your ActiveCampaign CRM, click on SETTINGS > ACCOUNT > "ACCOUNT NAME".
STEP # 2 | API URL & KEY:
You can then to find API URL and KEY, simply by click on SETTINGS > DEVELOPER > API ACCESS.