All tests
AOVPost-purchaseSkincare
One-click upsell on thank-you page
Offer a low-priced complementary product on thank-you page — no re-auth, no friction.
Winner
+31.8%
Post-purchase attach rate
4,712
Sessions
98%
Confidence
21d
Duration
Variant A — Control
Default thank-you page with tracking.
Variant B — Treatment
Thank-you page with one-tap add (pre-selected card, single 'Add to order' button).
What we took away
B — Variant won
Highest-intent moment in the funnel — almost no objection. The UX has to stay inside 'native Shopify' feel; anything resembling an upsell popup tanked conversion.
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