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Cross-sell Optimization Boosts E-commerce Conversion Rate By 6.6%

E-commerce metrics showing 6.6% conversion rate lift with product navigation redesign
The Client

Gift Card Marketplace

Executive Summary
Leading online gift card marketplace struggling with high product page abandonment rates. Our vertical cross-sell treatment provided relevant alternatives, resulting in 6.6% conversion rate increase, 10% higher transaction value, and $5.4M projected annual revenue impact.
Categories: AB Testing Case Studies, Case-Studies, Ecommerce CRO Case Studies, Food & Travel CRO Case Studies

Highlights

Users were abandoning product pages when specific cards didn't meet their needs, without exploring alternatives. Our team implemented and tested vertical "offramp" navigation against horizontal carousels, providing relevant alternatives at decision points.

  • The winning design delivered a 6.6% conversion lift (from 29.65% to 31.62%)
  • Average transaction value increased by 10%

Our Solution 💡

We identified decision paralysis as the core issue. Our hypothesis was straightforward but powerful: adding clearly visible alternative card options as "offramps" on product detail pages would reduce abandonment and provide users with more relevant options.

Our team developed two distinct navigation approaches to test:

  1. Vertical offramp display - Alternative gift card options arranged in a clean, vertical layout below the main product
  2. Horizontal offramp carousel - Alternative options in a scrollable horizontal row

Both variations included intuitive navigation controls that matched the site's existing design language, focusing on popular gift card categories.

Technical Implementation ⚡

Our experiment targeted all visitors viewing predesigned product pages and compared three variations: the control (standard product page with no offramp navigation), Variation 1 (vertical display of alternatives below the main product), and Variation 2 (horizontal carousel of alternatives). Variation 1, with its clean vertical layout of alternative products, emerged as the clear winner, delivering a 6.6% conversion lift over the control.

Control: Shows standard product page without product alternatives.

Winning Variation 1: Features a clean vertical layout of cross-sells, giving users relevant alternative options.

The Results

Let's break down the results:

Metric Control Variation 1 Lift
Users 2,772 2,821 -
Transactions 822 892 -
Conversion Rate 29.65% 31.62% 6.6%
Revenue Lift - - 12.0%

Why It Worked 🎯

The vertical layout's success stems from two key conversion principles: reduced cognitive load and natural user scanning patterns. By presenting alternatives in a clean, vertically-aligned format, we made product comparison intuitive while keeping users within the purchase funnel.

Our data confirmed that simplicity drives results in navigation design. The 10% increase in revenue per user demonstrated that strategic alternative placement not only prevents abandonment but also guides users toward higher-value options. This matches established UX research showing that thoughtful choice architecture significantly impacts e-commerce performance.

Let's Talk 💬

Want to see how our approach to navigation design could boost your conversion rates? Let's talk about your specific e-commerce challenges.

Appendix: Detailed Test Parameters and Statistical Analysis

Test Parameters

Parameter Details
Device Targeting All devices (desktop, tablet, and mobile) with responsive designs for each variation
Browser Targeting All major browsers were included in the test
User Segments All user segments without specific targeting parameters
Page Scope Limited to predesigned gift card product detail pages, not including personalized card creation pages or open-loop virtual cards
Test Duration 30 days
Participation Rate 80%
Sample Size 5,593 users

Statistical Analysis

Metric Value
Confidence Level 94%
Z-score -1.60
P-value 0.0553
Conservative Lift Estimate 3.7%
Field Notes
"Cross-sells and upsells are vital to any ecomm shop.  We recommend constant testing here - there is always a better way to merchandise the product options within these widgets and their position and presence"
Devon Cox President, ConversionTeam
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