It's a way to discount items at the point of checkout, whereas a discount/offer is displayed to everyone from the start. All pricing and availability will still need to be set within Core for a Promo Code to work.
Log in to RevSpa
Select 'Promo Codes' from the left-hand menu
Click 'Create a Promo Code'
Fill out what you would like the Promo Code to be. This is the code that customers will need to enter at checkout.
If you want this promo code to only be used for bookings on selected days of the week, you will need to select the relevant days.
Select the Pricing Rule that best suits your aims and any basket conditions.
If you want the promo code live now, click the slider under 'Enabled Status' until it goes green.
Click 'Save Promo Code'
Fill in the rest of the relevant details on the Period, Effected Events, Basket Included and Basket Excluded tabs.
Don't forget to Save any changes that you make!