Pre-paid vouchers are an easy way to track your relationships with third-party affiliates like Groupon, Expedia, etc. It's easy to add these vouchers in the kiosk when you're checking products out.
1. Add your customer and products to the order.
2. On the "Accept Payment" screen, tap "Voucher".
3. Enter the full amount of the voucher's value into the transaction field. This amount should be for the full value of the products---not the discount.
4. Tap the "Select a promotion" field and choose the affiliate you're looking for.
5. Select the promotion you're looking for.
6. Tap the "Take Payment" button.
You've now successfully added a voucher!