vitória gomes
E-commerce · Checkout · 2025

kabum! checkout redesign

Experience architecture strategies and friction reduction to maximize revenue for Brazil's largest tech and gaming e-commerce platform.

kabum! checkout redesign

kabum! checkout redesign

Experience architecture strategies and friction reduction to maximize revenue for Brazil's largest tech and gaming e-commerce platform.

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01 / context

context

Checkout is the point where purchase intent turns into revenue. Any friction along that path has a direct, measurable impact on the business.

High abandonment rate (44%)

Heavily concentrated on mobile devices, with a direct hit to revenue.

Dead clicks

Recurring frustration in the address and ID fields.

High contact rate

High volume of support tickets caused by form-filling errors.

02 / discovery

discovery

The project's central question: "Where in the checkout architecture is friction highest?"

Google Analytics — Jan/Feb 2025

Before implementation: 44% cart abandonment, and 48% on the same page when interacting with the shipping component.

Clarity — recorded sessions

These sessions complemented the quantitative data. They showed dead clicks on the address field and users restarting the flow after being forced to log in before confirming their intent to buy.

KaBuM! checkout architecture

Flowchart - old checkout.

03 / decisions

decisions

The pre-implementation funnel confirmed the problem was concentrated in the step that mixed address and shipping, not in the payment decision.

Start of cart — 44.8% abandonment

The biggest drop-off already showed up at the very first contact with the purchase flow.

Shipping selection — 48.46% abandonment

The single biggest drop-off point in the entire funnel, where address and shipping competed on the same screen.

KaBuM! checkout — payment page

04 / handoff

handoff

Component documentation, including behavior notes by state, interactions, and accessibility.

05 / results

results

KaBuM! checkout results

-17 p.p.

cart abandonment

From 44% to 27.05% in the first five months after launch.

100%

gradual validation

Hypotheses tested individually through A/B experiments before rollout.

Next project

ds.sensei; design system →

The Design System built as an internal product for KaBuM!'s squads.

Let's talk?

If you're building something complex and need someone who thinks in systems before thinking in screens, let's talk!

contatovitoriagomys@gmail.com

Built with Claude Design & Code by Vitória Gomes.