Hubspot's free Marketing Hub plans don't have API access to the business-intelligence and content Scopes used by our integration.
If you've tried to connect to Hubspot and received the error message
"Your hubspot account does not have the necessary permissions. Please ensure you are connecting to a paid Hubspot Marketing account of type Basic, Professional, or Enterprise with access to the Content and Business-Intelligence scopes.", you'll need to upgrade to a Hubspot paid plan to use this integration.