It would be very helpful to have the ability to create one-time-use discount codes that customers can apply online during the booking process.

Ideally, each code would only work once and could be assigned to specific clients, rather than being available to everyone. This would make it much easier to offer personalized promotions or goodwill discounts while ensuring they can only be redeemed at the time of booking.

Please consider adding this feature in a future update. Thank you!