Post-Purchase Upsell: How to Show One-Click Offers After Checkout

Overview

Post-Purchase Upsell shows the customer one offer after they pay, on the post-purchase page, before the Thank You page. If they accept, the product is added to the order they just placed and they only pay the price difference. There's no second checkout and no re-entering card details.
Available on all plans (early access, free).

When to use it

Offer a product that goes with what the customer just bought. For example, a screen protector after a phone case. A discount of around 10–20% usually works well. Use conditions if you only want the offer to show on certain orders.

Set Blockify as your post-purchase app

The offer won't appear until Blockify is set as your post-purchase app.
Step 1: In Shopify admin, go to Settings → Checkout.
Step 2: Scroll to Post-purchase page and select Blockify Checkout.

Create an offer

Step 3: Open Blockify Checkout and click Post-Purchase Upsell in the left menu.
Step 4: Click Create offer.

Step 5: Set Status to Active and enter a Name (internal only, customers don't see it).
Step 6: Under Product, search and select the product to offer.
Step 7: Choose a Discount type (Percentage or Fixed amount) and enter the value. Leave empty for full price.
Step 8: Set the Condition. Keep Always to show on every eligible order, or click + Add condition to target by products, order value, customer tag, or country.
Step 9: Under Page content, edit the Product & price and Accept / Decline text if needed.
Step 10: Check the Preview panel (Desktop / Mobile) and save. The offer starts showing on eligible orders.

Notes

Note: The post-purchase page only appears for orders paid by credit card. It does not appear for COD, wallets (Apple Pay, Google Pay, Shop Pay), PayPal, or gift cards. This is a Shopify limitation, not an app setting.
Note: Shopify allows one post-purchase app per store. If another app is set, switch it to Blockify Checkout in Settings → Checkout.

FAQ

Q: My offer isn't showing after checkout. Why? A: Check that Blockify is set as your post-purchase app (Settings → Checkout), the offer Status is Active, and the order was paid by credit card.
Q: Does the customer pay or enter their card again? A: No. The product is added to the same order and only the price difference is charged to the card on file.
Q: Can I show more than one offer per order? A: One offer shows per order. You can create multiple offers with different conditions, and the matching one is shown.

Updated on: 16/09/2026