Literally, the earlier the better. I have a client who has just booked for July 2023 and what a dream because it means they can have the marquee they want, the caterer they choose and of course, whichever DJ they require because most people don't behave like this! Otherwise, 4-6 months if usually fine. But that doesn't mean we can't do it with short notice. We can turn anything around in 3 weeks but it just means there will be less choice with suppliers.