Setting up the Discount Code Rejection extension

Offer shoppers an alternative discount when their coupon code is rejected at checkout

March 30, 2026

The Discount Code Rejection extension automatically offers shoppers a replacement discount when they enter an invalid coupon code at checkout. Instead of losing the sale, you catch the rejection and present an alternative offer — all in real time.

How to set it up

Go to Checkout Components in the left-side menu, then click Add Component and select Discount Code Rejection.

Step 1: Set up your coupon matching rules

Each configuration maps a rejected code (or pattern of codes) to a replacement offer. You can create multiple configurations to handle different scenarios.

Coupon Rules: Define which rejected codes should trigger this replacement. Options include exact match, prefix match, and regex patterns. For example, you can catch any code starting with "SUMMER" or match a specific code like "EXPIRED10".

Step 2: Choose your replacement discount

Pick how the replacement discount works:

• Create Discount — PDQ generates a unique, one-time-use coupon code for each shopper. You set the discount type (percentage or fixed amount), the value, and how many days until it expires.
• Existing Discount — Point shoppers to a coupon code that already exists in your Shopify store.
• No Discount — Show a message without offering a discount (useful for informational messaging like "this code has expired").

If you choose Create Discount, you can also configure combination rules — whether the generated coupon can combine with order discounts, product discounts, or shipping discounts.

Step 3: Customize the widget

Choose how the replacement offer appears to shoppers:

Widget Type

• Banner — An informational message. Good for when the discount auto-applies or you just want to show a note.
• Clickable — A banner with an "Apply Discount" button. The shopper clicks to apply the replacement code. You can customize the button text (default: "Apply Discount").

Appearance — Set the background color (info, success, warning, or error), text color, button style, and button corner radius to match your store's look.

Auto-Apply — Toggle this on to skip the button entirely and apply the replacement discount automatically when the rejection is detected.

Step 4: Write your message

Customize the Title and Description that appear in the widget. Both fields support rich text and dynamic fields:

• {replacement_discount} — inserts the replacement coupon code
• {customer_name} — inserts the shopper's first name
• {customer_lastName} — inserts the shopper's last name

Example title: "That code didn't work — but here's {replacement_discount} just for you, {customer_name}!"

Good to know

• Generated coupons are one-time-use and restricted to the specific customer (when their email is available).
• The extension uses PDQ's Web Pixel to detect coupon rejections. Make sure your Web Pixel is active.
• Rejection data is stored temporarily (180 seconds) — the offer appears within a second of the rejection.
• You can create multiple configurations to handle different code patterns with different replacement offers.

That's it! And as always, don't hesitate to reach out to support@prettydamnquick.com if you have any questions.