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Would a deeper discount win more one-click adds? Should your second offer show best sellers instead of AI picks? Post-Purchase A/B Testing runs your current two-offer setup against one variant on live orders and shows you which sequence converts more.

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What it is

Post-Purchase A/B Testing lets you test the offers your customers see right after they pay, the way you’d test an ad: two versions, a 50/50 split, one winner. Your live Post-Purchase Upsells settings become the Control automatically, and you build one Variant that changes the same two-offer sequence — the discounts, the headings, whether an offer runs at all, and what the second offer shows. You’ll find it in Boost Admin under Post Purchase Upsells → A/B Tests. Like the feature itself, it runs on every Boost plan — no Shopify Plus required.

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The problem it solves

The moment after checkout is one of the highest-converting offers you run — and today, tuning it is a guess:
  • You set the offers once and never question them. Is 15% off the right discount for the repeat offer? Would your second page convert better with best sellers than AI picks? Most stores never find out.
  • Before-and-after comparisons lie. Change an offer, watch acceptance for two weeks, and traffic shifts drown out the signal. Only a same-time split on the same orders isolates the change.
  • No testing tool can reach this page. The post-purchase page lives between payment and the order confirmation, inside Shopify’s checkout flow — generic A/B tools never see it.
Boost tests the post-purchase sequence itself, natively, with zero risk to the order that was just placed.

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How it works

1. Create your test. Your live post-purchase settings load in as the Control. The Variant changes the same two-offer sequence — turn an offer on or off, change a discount or heading, or give Offer 2 a different method (Boost AI, best sellers, or hand-picked products). At least one offer stays enabled. 2. Schedule it. Pick a start and end date and publish, or schedule it ahead — Boost starts and stops the test for you. Tests run on ET (Eastern Time) days, starting at 12:00 AM and ending at 11:59 PM. 3. Boost splits eligible checkouts 50/50. Each customer who reaches the post-purchase page is assigned to one version, and both versions are locked in at launch — so mid-test edits never muddy your results. Zero risk, as always: the original order is already captured before any offer shows. 4. Read the report, keep the winner. Checkouts, conversion, revenue, and orders for each version — plus a per-offer breakdown showing which products were shown, which were accepted, and what they earned. A Leading badge marks the version converting better while the test runs, and the Winner is crowned when it ends.

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What you get

  • An answer with zero risk. The sale is already made before either version shows an offer — a test can only add revenue, never cost you the conversion.
  • Offer-by-offer insight. See Offer 1 and Offer 2 separately — accepts, revenue, and a product breakdown for each — so you learn which offer carried the win.
  • Test orders you can find in Shopify. Boost tags every order in the test — like Boost PP AB1 Control and Boost PP AB1 Variant — whether the customer accepted, declined, or closed the page, so you can compare both groups in Shopify Admin.
  • A tuned sequence, not a set-and-forget one. The offers most stores configure once and never revisit become something you improve on evidence.

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Works with your stack

  • Do I need Shopify Plus? No. Post-Purchase A/B Testing runs on every Boost plan, same as Post-Purchase Upsells.
  • Do I need anything extra? Just the same setup as the feature itself: Boost selected as your post-purchase app in Shopify’s checkout settings. You can draft tests before that’s done — and publish the moment it is.
  • Do I have to rebuild my offers to test them? No. Your live post-purchase settings become the Control automatically — you only build the Variant.
  • What can the Variant change? Both offers’ discounts, headings, and enabled state, plus Offer 2’s product method and hand-picked products. The two-offer sequence is tested as a whole — one version per checkout, and logged-in customers keep the same version across checkouts.
  • How many tests can I run? One post-purchase test at a time. Pause or end a test whenever you want — the report keeps everything it’s learned. Resuming a paused test just needs its schedule to still be open.

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Ready to find your best post-purchase sequence?

Stop guessing what to offer after the sale. Run the test, read the report, keep the winner.
Start Free Trial

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Continue to Explore

Post-Purchase Upsells

The after-the-sale offers you’re testing — one click, zero risk.

Reward A/B Testing

Test your cart’s reward tiers the same way — ladder vs. ladder.

Checkout Upsell A/B Testing

Test your in-checkout offers too — the Shopify Plus counterpart.