As you build funnels in ConvertFlow, you can add ConvertFlow automations to your forms, quizzes and buttons element's actions settings, that control Beehiiv API calls.
You can add these ConvertFlow automations to segment contacts:
Beehiiv - Subscribe to publication (forces subscribe/resubscribe)
Beehiiv - Subscribe with welcome email
Beehiiv - Update custom field
Beehiiv - Add a tag
Beehiiv - Enroll in Beehiiv automation (use API trigger for automation)