Promo code is the term youll hear and use most often in your eCommerce-focused promotional efforts. Also commonly referred to as discount codes, voucher codes and coupon codes, businesses can either send codes like these directly to consumers or implement them into QR barcodes and more.

What is a voucher or promo code?

Coupons can be directly purchased by the customers (or they can be entered by the admins) whereas vouchers must be entered by the administrators and given to the customer in some way.