From the Orderup App, you can allow customers to enter coupon codes during the order's checkout. To do so, follow the steps below:
1. Access to the admin mode (click here to review how to access the admin mode)
2. Tap on the 'settings' (gear) icon on the top right corner
3. Tap on 'More Settings'
4. Toggle the 'Allow Coupon Codes' to enable this setting
5. An 'Apply Coupon Code' will be available on the 'Grand Total' checkout screen