Product pages showed a multi-buy discount message right by the add-to-cart button. More shoppers added to cart, but order value fell instead of rising.
A Bundle Discount Message Near Add to Cart Makes No Clear Difference to Conversion Rate


If we show the buy-three bundle discount next to the add-to-cart button, then average order value will increase because shoppers will see the offer at the moment they decide to buy.
What We Changed
- Added a "buy three, get money off" bundle message directly above or below the add-to-cart button.
- Kept the offer purely informational, not interactive.
The Results
How the new version compared with the original, across all devices.
Conversion rate
Add-to-cart rate
Revenue per visitor
Key Learnings
- Conversion rate barely moved (-1.9%), so the message made no clear difference to how many shoppers bought.
- Add-to-cart rate rose 7.0%, so the offer drew interest.
- Revenue per visitor fell 11.4% as average order value, the metric the test targeted, dropped 7.9%. The original had an 81.9% probability of the higher order value.
- The test ran 7 days on 1,153 visitors, mostly on mobile, so read the result as directional.
Detailed results breakdown
Conversion rate
-1.9%
Add-to-cart rate
+7.0%
Revenue per visitor
-11.4%
Average order value
-7.9%
Bounce rate
-11.3%
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30,000+ Monthly sessions.
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+9.0% Conversion rate

Product Page (PDP)
Positive signal
Delaying the Promo Pop-Up by 60 Seconds Shows a 7.9% Conversion Rate Lift
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+7.9% Conversion rate

Collection Page (PLP)
Inconclusive
Redesigned Product Cards on Collection Pages Make No Clear Difference to Conversion Rate
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+0.6% Conversion rate
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