Promotion Codes

For direct payment gateways, the discount code can be entered on page 2 of the checkout process.

PayPal Express, being an offsite payment gateway, works a bit differently. This is the Paypal Express Checkout's workflow: when checking out your customer goes to right away, where Paypal collects his shipping and billing addresses. After that, the customer returns to Shopify where he picks a shipping rate, types in a discount code (if you have discount codes that are 'active'), the price is updated accordingly and, on that same page, the customer gets to finalize their transaction.