Engineering a 45% Reduction in Cart Abandonment

Cart abandonment was at 78% — nearly double the industry average. The checkout flow had 7 steps across 4 page loads, average page load time exceeded 8 seconds, and payment failures caused 20% of all abandoned carts. The mobile experience was particularly broken: tiny form fields, no address autocomplete, and payment forms that timed out on slower connections. The company was losing an estimated $4.2M annually in recoverable revenue.

We redesigned the entire purchase flow using progressive disclosure and intelligent defaults. The 7-step checkout was compressed to 3 steps on a single page with smart sectioning. Address autocomplete and saved payment methods eliminated repetitive data entry. We rebuilt the payment integration with automatic retry logic, fallback processors, and real-time validation that caught errors before submission. The frontend was rebuilt with performance-first architecture: code splitting, lazy loading, optimized images, and edge caching brought load times under 2 seconds.

Cart abandonment dropped from 78% to 33% within 90 days — a 45 percentage point improvement. Page load time decreased from 8+ seconds to 1.8 seconds. Payment failure rate dropped from 20% to under 2% through intelligent retry and fallback logic. Mobile conversion rate tripled. The combined impact recovered an estimated $3.1M in annual revenue that was previously lost to checkout friction.