Promo Codes in FlexBooker allows you to create as many unique "codes" as you would like. Whenever you have more than one code in your account a special "promo code" field will appear on the payment page of your booking process.
If a user enters one of your active promo codes then the discount that you have set will be applied to the booking automatically.
Discounts can be set either as an absolute dollar value, or as a percentage.
As soon as you delete a promo code it will no longer be available for redemption by your clients.