Can I change how contacts and leads are mapped to Eventbrite attendees?

Contact or lead will be linked to an Eventbrite attendee record in Salesforce using the chosen matching method.  By default, email address is the method records are matched.  But if you change the matching method and want to update all existing records you can perform a full sync. This will re-match existing Eventbrite records to contact or leads using your chosen matching criteria.