Technically, Universal Studios maintains a strict no-resale and non-transferable policy for all Halloween Horror Nights (HHN) tickets. When you purchase a ticket, it is legally tied to the person who uses it at the gate, and Universal increasingly uses biometric finger scans or facial recognition technology at their Florida and California parks to ensure the same person uses the ticket for the duration of the event. If you buy a ticket from an unauthorized third-party site or an individual on social media, you run a very high risk of the ticket being deactivated or found as a duplicate, leaving you with no recourse at the gate. However, if you have a genuine change of plans, Universal's customer service can sometimes "reassign" a ticket to a different name if you call their guest services line before the event date, though this is at their discretion and usually involves a fee or proof of a medical emergency. For 2026, the safest way to handle tickets you can no longer use is to check if they are "date-changeable" within the official app; while you might not get your money back, you can often apply the value toward a different night or a future park visit, avoiding the legal and financial pitfalls of the "ticket scalping" secondary market.