During a discovery call with Charismatic Paperbacks, a book of the month club, you learn they want to track referrals and send thank you follow-ups. Based on this use case, what object type is the best recommendation?

In the HubSpot Data Integration certification, a custom object is the best recommendation because "Referrals" represent a distinct business concept that does not fit naturally into the standard CRM definitions of People (Contacts), B2B Organizations (Companies), or Revenue Opportunities (Deals). By creating a Custom Object for Referrals, Charismatic Paperbacks can track unique data points specific to a referral—such as the date of the referral, the referral source, and the reward status—while maintaining a many-to-one relationship with the Contact who made the referral. This structure allows for cleaner data management and enables automated workflows to trigger "thank you" follow-ups specifically when a new Referral record is created, without cluttering the primary Contact or Deal pipelines with non-transactional data.