Nice video Paul. Thanks. It's a shame that the marketing status field is not exposed to automations - as it would be great to set marketing consent on a "deal won" trigger as an example. This would be a really great capability. Do you know if Marketing status is exposed via the API to Zapier?
You can only send a Campaign to a contact who's 'Marketing Status' is 'Subscribed'. So as long as you have consent and the new leads marketing status is subscribed, then yes, you can use Campaigns.