If l order my frieds ticket online what do they need as proof when they get there. My email with the receipt or what.

Your phone should be able to pull up the email, or you can print!

Generally when you order online, they'll email you with a link that opens up to a QR code that the employees scan for admission.

Phone or a print out

All we went with was our printed ticket. They scan it and you go

I think you can bring the recite in your email