Shop Pay and Google Pay in the cart drawer: +35% conversion rate
Test run byBlend CommerceCRO agency
Commentary byLiftArchiveOur analysis, not theirsAdding Shop Pay and Google Pay buttons to the cart drawer raised conversion rate by 35% for snack brand Jackson's.
Blend Commerce ran this A/B test in the brand's Rebuy Smart Cart.
It reached statistical significance after two weeks, with revenue up 13%.
- Conversion rate: +35%, statistically significant after two weeks.
- Revenue: +13%, and average purchase revenue per user: +12%.
- Express button clicks: Shop Pay +53% and Google Pay +40%. The source also reports Apple Pay clicks up 60%.
- The variant was set live permanently.
The change
Shop Pay and Google Pay buttons added to the cart drawer.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The Rebuy Smart Cart drawer had no express payment buttons.
Variant
Shop Pay and Google Pay buttons were added inside the cart drawer.
Why it likely won
Our reading of the result, not the practitioner's claim.
- Most of the brand's customers were already paying with express methods, so the buttons fit existing habits.
- Putting them in the drawer lets shoppers pay without opening the cart page or filling in checkout forms.
- Snacks are a low-risk, often repeat purchase, so a faster route to pay may be all many shoppers need.
Caveats: The test ran for two weeks and reached statistical significance, but sample size was not shared. Results are reported by the agency that ran the test.
Who ran it
Blend Commerce ran this test for Jackson's and published the results (Blend Commerce A/B test). The numbers are theirs; the summary and commentary on this page are ours.
Read the original case study on Blend Commerce →
How to run this test on your store
- Hypothesis
- If we add express payment buttons to the cart drawer, then more shoppers will complete their order because they can pay in one tap without filling in checkout forms.
- Primary metric
- Conversion rate
- Guardrails
- Average order value
- Cart drawer upsell take rate
- Revenue per visitor
- Who should test it
- Shopify stores using a cart drawer where most buyers already pay with Shop Pay, Apple Pay or Google Pay. It may help less for high-price items where shoppers want to review the order carefully.
Questions
Can I add Shop Pay buttons to a cart drawer?
Yes. Many cart drawer apps, including Rebuy Smart Cart used here, support express checkout buttons. Check your app settings or theme options.
Do express checkout buttons in the cart drawer increase sales?
In this test, conversion rose 35% and revenue 13%.
Results depend on how many of your buyers already use express wallets.
Will express buttons hurt cart upsells?
They might, since shoppers can leave the drawer faster.
Track upsell take rate and average order value as guardrails.
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