The LEGO® Group • 2024

Validating and delivering
a new payment method

Role
Design Intern
Teammates
1 Senior Designer
1 PM
7 Engineers
Duration
3 months
Responsibilities
User Research
UX Design

Overview

The LEGO In-store Shopping App is a version of LEGO.com stripped down into a native app

The app helps store associates make delivery purchases for customers.

LISA’s default payment method can not be used outside of the UK, discouraging global adoption.

LISA app Products screen on an iPhone, with a LEGO store associate minifigure
Scan to Pay screen with a QR code and Pay via Email option

Pay by Link (payment via QR code and email) can overcome this financial barrier, theoretically...

But we don’t know how users feel and if it will work.

Here’s how we validated and successfully implemented Pay by Link

Customers

How do our customers feel about it?

White paper research supported the proposition of Pay by Link, but to truly know how both customers and store associates feel about the payment method, we conducted user research.

Survey 582 participants EMEA & America

I synthesised the data from the survey and learned customers feel confident about payment links via QR Code or email. This increased our confidence as we continued further exploration

Early concept

User flow

I designed a user flow to understand how our users will use Pay by Link, and what steps they would take to complete the journey.

This helped inform our lo-fidelity wireframes in understanding users’ paths, key elements, and hierarchy.

User flow: select Pay by Link, display QR code, send link to email, email sent to shopper

Mid-fidelity Prototype

With a firm understanding of the user journeys on both sides, we crafted a prototype for testing

How do our stores feel about it?

We wanted to know how stores felt about guiding customers through both payment flows (QR Code and email). So I led and supported user tests of the early design

Concept Testing 3 US, 5 UK

With US stores leading in excitement, we learned that stores are willing to use the payment method

But there are major concerns to address

Addressing concerns

Email path risk

We learned that the email path is concerning for the following reasons;

Email path: check for payment (unable to check after shopper has left), order reserved until confirmed (operational risk), order confirmed (only shopper receives confirmation)

Once a customer paying via email has left the store, associates have no means to ensure payment completion. The risk of failure and customer dissatisfaction makes stores uncomfortable to use this path

How much time should customers have to complete payment? Too much time could lead to operational risks as reserved orders reduces stock for other buyers. Raising concerns for our logistics department

Lowering the incompletion risk

I designed a printable instruction ticket that can be given to customers as a physical reminder and guide to complete payment. When shown this ticket, store associates felt more assured

Printable instruction ticket with payment steps and a QR code

Link expires in 24 hours

Customers have 24 hours

We asked customers, store associates and stakeholders how long the payment link should last but responses were inconsistent

24 hours appeared short enough to not bottleneck logistics, and long enough for customers to make payment

After implementation we plan to learn what all our stakeholders feel about the purchasing window

Final design

User flow

It sometimes takes LISA a few seconds before creating the QR Code. So I designed a loading state to subtly communicate the code was generating

Stores are satisfied with Pay by Link but how would our customers feel in an actual experience?

Five LEGO minifigures representing the test participants

Validation

Moderated Usability Tests
5 UK Customers

We crafted a mock-up store to simulate the shopping experience and tested with 5 customers of varying age groups, sex and affinities.

I supported my senior in introducing the sessions and briefing our users.

Though participants were new to the payment method, they trusted the LEGO® brand to guide them through completion

Summary

From the survey, early concept testing and moderated usability tests we learned that;

Customers feel confident using QR codes or email links to pay and even when unconfident, they trust the LEGO® brand to get them to payment completion

Store Associates are willing to use Pay by Link to help customers and though payment completion in-store is more desirable, the printable instruction ticket makes them feel less worried about it

Outcome

Pay by Link was successfully validated and implemented. It’s now being used by stores across the world

In 2024, stores worldwide used LISA to fulfill 17,800 orders and 25% through Pay by link (4,450)

Reflections

What I learned

Facing politics in design

Strong opinions towards LISA by regional managers raised our suspicion when store associates shared the same sentiments without being able to expand on ‘their experience’

This taught me the importance of verifying user experience through direct testing