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Shopify’s Post-Purchase Extensions API has platform-level limits that decide whether a post-purchase offer can appear at all. They apply to every post-purchase app, not just Aftersell, and Aftersell cannot override them. When an order doesn’t meet them, Shopify skips the post-purchase page (the original order still completes normally). This page is the canonical list of those limits; Thank You Page upsells are the standard way to reach customers whose orders can’t show one.
Shopify’s own post-purchase checkout extension documentation is the source of truth for these limitations and may change at any time. Where this page and Shopify’s disagree, Shopify’s is correct. If you notice a difference, let the docs team know so we can update this page.

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Order and checkout requirements

The order must meet all of the following, or Shopify will not show the post-purchase page:

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Payment method restrictions

Shopify’s post-purchase API works only with specific payment methods. Unsupported methods cause the page to be skipped. The unsupported categories are:
  • Buy Now, Pay Later / installments (Klarna, Afterpay, Affirm, Sezzle, Shop Pay Installments, Zip, and similar)
  • Digital wallets and accelerated buttons (Apple Pay, Google Pay, Amazon Pay, the PayPal button, the Shop Pay button)
  • Bank transfers (iDEAL, Bancontact, Blik, Przelewy24, and similar)
  • Providers that retain the CVV/CVN (PayPal Payments Pro, Payflow Pro, Eway)
  • Gift card, COD, or Shopify store credit (any gift card payment on the order disqualifies it, even partial)
For the full provider-by-provider list of supported, conditionally supported, and unsupported methods, see Payment methods.

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Platform caps

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When Shopify skips the page anyway

Even when an order meets every requirement, Shopify can still bypass the post-purchase page:
  • Shopify skipped it. Shopify occasionally bypasses post-purchase for an order with no reason exposed to Aftersell (the Order Browser shows the error code no_activity). This is entirely within Shopify’s platform, so contact Shopify support.
  • Platform load. During flash sales or unusually high load, Shopify may delay order creation, and the page may not appear.

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Reaching ineligible orders

When an order can’t show a post-purchase offer for any reason above, Thank You Page upsells are the recommended workaround. They run on the order status page and are not subject to the post-purchase API limits, so they reach payment methods, currencies, sales channels, and order values that post-purchase can’t. Product-level limits still apply: bundle products can’t be upsold, and the one-subscription-per-order rule holds on the Thank You Page too.