Talk to a humanShoppers saw a pop-up suggesting a complementary product to add to their cart. See how it affected sales and order value over a 62-day test.
A Complementary Product Pop-Up Shows a 6.5% Conversion Rate Lift
Goal
Average order value
Result
+6.5% Conversion rate
Category
Product Page (PDP)
Outcome
Positive signal
Before
After
If we suggest a complementary product in a pop-up, then average order value will increase because shoppers will add extra items to their cart.
What We Changed
- Added a pop-up that suggests a complementary product.
- Used the pop-up to prompt shoppers to add an extra item to their cart.
The Results
How the new version compared with the original, across all devices.
+6.5%
Conversion rate
+29.0%
Revenue per visitor
+13.0%
Average order value
Key Learnings
- Conversion rate rose 6.5%, so the pop-up didn't put buyers off.
- Revenue per visitor rose 29.0%, from more orders (+15.4%) and bigger ones.
- Average order value, the metric the test was set up to measure, rose 13.0%, with a 75.6% probability that the variant beats the original on it.
- Nearly all 5,921 visitors were on desktop, and nothing reached significance: a signal worth acting on, not proof.
Detailed results breakdown
Conversion rate
+6.5%
Revenue per visitor
+29.0%
Average order value
+13.0%
Orders
+15.4%
Add-to-cart rate
+7.0%
Free Trial
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30,000+ Monthly sessions.
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Running on Shopify or Shopify Plus.
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Product Page (PDP)
Positive signal
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