Increased checkout completion by 29%

Increased checkout completion by 29%

Enabled users to view and edit their cart content with a side cart

Increased checkout completion by 29%

Enabled users to view and edit their cart content with a side cart

Context:

GolfAvenue in an online marketplace selling new and used golf equipment. The website was built fast and had many usability issues. Over the course of a year I designed and proposed improvements to the checkout experience and worked closely with the team to implement changes.

This case study is about part of the revamp, were we implemented a side-cart to improve checkout completion.

Results:

29%

Checkout completion rate

20%

Lower cart drop offs

10%

Increase in checkout speed
Industry
E-commerce
Team
Senior designer, PM, Devs
Platforms
Web and mobile
Timeline
1 year
Industry
E-commerce
Team
Senior designer, PM, Devs
Platforms
Web and mobile
Timeline
1 year

Context:

GolfAvenue in an online marketplace selling new and used golf equipment. The website was built fast and had many usability issues. Over the course of a year I designed and proposed improvements to the checkout experience and worked closely with the team to implement changes.

This case study is about part of the revamp, were we implemented a side-cart to improve checkout completion.

Results:

29%

Checkout completion rate

20%

Lower cart drop offs

10%

Increase in checkout speed
Industry
E-commerce
Team
Senior designer, PM, Devs
Platforms
Web and mobile
Timeline
1 year

PROBLEM

The company was estimating an annual $1M revenue loss from cart drop offs.

After optimizing the checkout experience and seeing results, we noticed there's still a lot of drop offs from cart to checkout. So it was time to focus on the cart.

WHAT WE INITIALLY ASSUMED

We initially assumed that users are dropping off because the cart looks messy

cleaning up and polishing the components was part of the plan however, looking into user behaviour revealed more.

WHAT USER BEHAVIOUR REVEALED

Users leaving the cart to go back to the shopping journey

Shoppers were adding all their “maybe” options to the cart, then navigating back and forth between the cart and product pages to compare, delete, and rethink.

Heatmap of the old cart showing a high number of users going back to the shopping journey

Users were dropping off because of long loading times

Whe users went back and forth between cart and product listing pages, they faced long loading times and some of them dropped off because of the frustration.

Long load times couldn't be easily reduced

The checkout was built on a different platform than the rest of the website. Because of this, moving between the site and the checkout was sometimes slow, and it wasn’t something we could easily fix.

Long load times when users left entered or left the checkout

Strategy

Giving users a side cart so they can easily review cart contents while browsing and avoid going back and forth between checkout and browsing.

The side-cart : Giving quick access to the cart

Through brainstorming with stakeholders and analyzing competitors, we introduced a side cart that could be opened at any time, giving users the opportunity to check and adjust the contents of their cart without leaving the shopping journey. So they could move to checkout only when their decision was made.

Before: 20s on average load time

Before: 20s on average load time

Browse
Load cart
Check, remove, adjust
Load catalog
continue browsing

After: Side card loads quickly

Browse
Open Side card
Check, remove, adjust
continue browsing
The shopping flow - From add to cart to checkout
The shopping flow - From add to cart to checkout
The shopping flow - From add to cart to checkout

DESIGN DECISIONS AND TRADEOFFS

Excluded Express Checkout CTAs from the side cart

After analyzing edge cases on mobile, I chose to leave out express payment options to keep the side cart focused on decision-making. Including them would have required adding coupon code fields as well. That was too much for a clean mobile experience. Having these options only presented at checkout was the trade-off I decided to go with.

Option 1
Express checkout available on the side cart
Not enough space for more than 2 products
Cluttered interface
Option 2
Express checkout not available on the side cart
More space for products - easier decision making
Less cluttered- easier decision making
One more click and page load before user can use express checkout

Placed specs behind a tooltip

Based on user insight and data I knew users usually know the specs they need and it's unlikely for users to add the same product twice to cart with different specs. so specs are secondary information that can be hidden behind a tooltip. Also user testing showed users were easily able to find product specs by pressing on the tooltip.

Option 1
Specs available when clicking on the tooltips
Less cluttered
Focus on product title and decision making
Option 2
Specs available at all times
Cluttered interface
Too many focus points, not easy to make a decision

Placed specs behind a tooltip

Based on user insight and data I knew users usually know the specs they need and it's unlikely for users to add the same product twice to cart with different specs. so specs are secondary information that can be hidden behind a tooltip. Also user testing showed users were easily able to find product specs by pressing on the tooltip.

Specs available when clicking on the tooltips
Less cluttered
Focus on product title and decision making
Specs available when clicking on the tooltips
Less cluttered
Focus on product title and decision making
Option 1
Specs available at all times
Cluttered interface
Too many focus points, not easy to make a decision
Option 2
Express checkout available on the side cart
Not enough space for more than 2 products
Cluttered interface
Option 1
Express checkout not available on the side cart
More space for products - easier decision making
One more click and page load before user can use express checkout
Option 2

FINAL DESIGNS

The side-cart : Giving quick access to the cart

Side cart - Desktop and mobile
Side cart - Desktop and mobile
Side cart - Desktop and mobile
Add to cart notification on mobile
Add to cart notification on mobile
Add to cart notification on mobile
Cart icon to side cart interaction on mobile
Cart icon to side cart interaction on mobile
Cart icon to side cart interaction on mobile
Add to cart notification on mobile
Cart icon to side cart interaction on mobile

IMPACT

User Impact:

  • Users compare and adjust cart content easily without any load times

  • Decisions happen in the shopping flow, not after leaving it

I lead the designs for a revamp of the cart/checkout experience that included 3 flows of buying, selling and trading. Below you can find some designs from the buying experience.

Business Impact:

  • Checkout conversion increased because users who enter checkout were more ready to purchase

  • initial 3 month Sales increased because of a cleaner checkout and a more streamlined experience

I lead the designs for a revamp of the cart/checkout experience that included 3 flows of buying, selling and trading. Below you can find some designs from the buying experience.

+29%

Checkout completion rate

-20%

Lower cart drop offs

10%

Increase in checkout speed

What I would measure next

Sales increased in the first couple of months I would track sales and compare them with previous years. Also I'd check whether moving express checkout behind one extra step cost anything at the payment stage.

I lead the designs for a revamp of the cart/checkout experience that included 3 flows of buying, selling and trading. Below you can find some designs from the buying experience.

View next project

Redesign

E-commerce

Responsive web

14% higher conversion with design

Optimized the Trade-in flow while navigating risk and technical constraints.

Read case study

14% higher conversion with design

14% higher conversion with design

Optimized the Trade-in flow while navigating risk and technical constraints.

Optimized the Trade-in flow while navigating risk and technical constraints.

Redesign

E-commerce

Responsive web

Heatmap of the old cart showing a high number of users going back to the shopping journey

Heatmap of the old cart showing a high number of users going back to the shopping journey

User observation: Users were using the cart as a decision making step and going back and forth

Observing user behavior showed us a common pattern:

Shoppers adding all their “maybe” options to the cart, then navigating back and forth between the cart and product pages to compare, delete, and rethink.

Technical limitation: Long load times couldn't be easily reduced

This back and forth created friction for users and led to high drop offs from the flow.

This could not be easily fixed because the checkout was part of a different platform integration.

TECHNICAL LIMITATION

Long load times when users leave the cart to go back to the shopping journey.

User friction: Long load times between cart and shopping

This back and forth created friction for users and led to high drop offs from the flow.

TECHNICAL LIMITATION

Long load times when users leave the cart to go back to the shopping journey.
Long load times when users leave the cart to go back to the shopping journey.
Long load times when users left entered or left the checkout

Users were dropping off because of long loading times

Whe users went back and forth between cart and product listing pages, they faced long loading times and some of them dropped off because of the frustration.

Long load times couldn't be easily reduced

The checkout was built on a different platform than the rest of the website. Because of this, moving between the site and the checkout was sometimes slow, and it wasn’t something we could easily fix.

PROBLEM

The company was estimating an annual $1M revenue loss from cart drop offs.

After optimizing the checkout experience and seeing results, we noticed there's still a lot of drop offs from cart to checkout. So it was time to focus on the cart.

WHAT WE INITIALLY ASSUMED

We initially assumed that users are dropping off because the cart looks messy

cleaning up and polishing the components was part of the plan however, looking into user behaviour revealed more.

cleaning up and polishing the components was part of the plan however, looking into user behaviour revealed more.

WHAT USER BEHAVIOUR REVEALED

Users leaving the cart to go back to the shopping journey

Shoppers were adding all their “maybe” options to the cart, then navigating back and forth between the cart and product pages to compare, delete, and rethink.

Heatmap of the old cart showing a high number of users going back to the shopping journey

PROBLEM

The company was estimating an annual $1M revenue loss from cart drop offs.

After optimizing the checkout experience and seeing results, we noticed there's still a lot of drop offs from cart to checkout. So it was time to focus on the cart.

Heatmap of the old cart showing a high number of users going back to the shopping journey
Goli Pezeshk 2026
Goli Pezeshk 2026
Long load times when users left entered or left the checkout

Users were dropping off because of long loading times

Whe users went back and forth between cart and product listing pages, they faced long loading times and some of them dropped off because of the frustration.

Long load times couldn't be easily reduced

The checkout was built on a different platform than the rest of the website. Because of this, moving between the site and the checkout was sometimes slow, and it wasn’t something we could easily fix.

PROBLEM

The company was estimating an annual $1M revenue loss from cart drop offs.

After optimizing the checkout experience and seeing results, we noticed there's still a lot of drop offs from cart to checkout. So it was time to focus on the cart.

WHAT WE INITIALLY ASSUMED

We initially assumed that users are dropping off because the cart looks messy

cleaning up and polishing the components was part of the plan however, looking into user behaviour revealed more.

WHAT USER BEHAVIOUR REVEALED

Users leaving the cart to go back to the shopping journey

Shoppers were adding all their “maybe” options to the cart, then navigating back and forth between the cart and product pages to compare, delete, and rethink.

Heatmap of the old cart showing a high number of users going back to the shopping journey