Professional UI/UX Design for eCommerce - why It’s crucial for your business success?
The term 'design' is often associated solely with visual appearance and we may easily overlook the strategic role of the design and its direct impact on sales in e-commerce. User interface design is not just an aesthetic choice - it represents the functionalities and serves as a communication tool between the business and its customers.
Even the best products at the most attractive prices lose their value if the customer cannot easily find and order them - in other words, if good user experience is missing.
Design mistakes have a direct impact on conversions and sales. Avoiding them requires professional UI/UX design - a combination of experience, expertise, and deep business understanding.
In this article, we’ll take a closer look at what UI/UX design really means, the most common design mistakes made in eCommerce, and how to avoid them to ensure your business’s long-term success.
“UI” and “UX” - what do these terms actually mean?
In the world of digital design, the terms “UI” and “UX” are often used, but not always fully understood by merchants.
- UI (User Interface) - represents the visual appearance of the website, which includes colors, buttons, menus, fonts, images, and layout. UI is the “face” of your online store - how it looks to the customer.
- UX (User Experience) - represents the overall feeling a customer has while using the website. How easily can they find a product? How quickly can they complete their order? Is the process intuitive or confusing?
In short, UI captures attention, while UX drives conversion.
A successful online store needs both - a beautiful and modern design combined with usability and logic that convert visitors into customers.
The most common mistakes in online store design
Without a solid understanding of eCommerce UX, it’s easy to make interface design mistakes which leads to high bounce rates and abandoned shopping carts:
- Chaotic navigation/menus - the customer cannot quickly find the desired product and leaves the website.
- Lack of visual hierarchy - promotions and key products are not highlighted, while less important sections draw attention instead. A well-structured visual hierarchy guides the user’s attention from finding the product to completing the purchase.
- Design that doesn’t reflect the brand - the style, colors, and messages must align with the brand identity to gain customer trust.
- Visually appealing interfaces without UX logic - aesthetics alone do not guarantee sales. True success comes from a UI/UX design that balances aesthetics with functionality - creating an experience that’s both delightful and conversion-oriented.
- Lack of mobile optimization - with over 70% of traffic coming from mobile devices, a website that isn’t fully adapted for small screens risks losing a substantial portion of potential customers. Every detail counts in mobile design, and overlooking them can directly impact user engagement and conversions.
- Unclear or hidden CTA buttons - key actions like 'Buy' or 'Add to Cart' should be clear and visible to encourage the user to take action.
- Long and confusing checkout process that frustrates the customers and increases cart abandonment.
- Platform-incompatible design - often, the visual concept is created without considering the specific eCommerce platform (Magento, WooCommerce, Shopify, etc.), leading to technical inconsistencies that make implementation difficult or, in some cases, impossible.
Fixing such mistakes typically requires a thorough UI/UX audit, followed by a partial or even complete redesign. This leads to additional costs, time loss, and slows down business growth.
How our UI/UX design team solves these challenges?
Our design team has extensive experience and focuses specifically on eCommerce. Over the years, we have gained deep knowledge of various industries such as Health & Beauty, Home & Furniture, Baby & Kids, Fashion, Food & Beverage, Technology & Electronics, and many others.
This broad perspective allows us to adapt the best UI/UX practices to your business.
We have designed online stores and mobile apps for well-known brands such as AIKO XXXL, Drinklink, Kikkaboo, Dress4less, Galen Pharmacies, Douglas, Teodor, and many more, which you can see in our portfolio.
Experience with major companies and their challenges gives us the confidence to deliver solutions that are not only visually appealing but also functional.
Fun fact: Since 2020, over 1 500 000 users have shopped through online stores developed by Stenik.
Why choose expert UI/UX design from Stenik?
Working with an experienced design team that understands the specifics of e-commerce ensures confidence, efficiency, and tangible results. Designing for an online store requires more than just aesthetics - it demands a deep understanding of user behavior, business logic, and the platform on which it will be built.
To ensure excellent results, we follow a well-established process developed through years of experience. Some of the key steps include:
- In-depth research before every project - we analyze the audience, competitors, and industry to deliver a solution that makes your brand competitive.
- UX strategy focused on conversions - we understand user behavior and create intuitive paths to purchase. Every design detail serves the goal of easier shopping and higher sales.
- UI design that builds trust - a visual style aligned with your brand identity that gives users confidence and encourages them to buy.
- Optimized navigation and a clear structure which ensures that every element intuitively guides users from discovering their desired products to completing their order, regardless of which page they start their journey on.
- We focus on the mobile experience - designing interfaces that are fully responsive and user-friendly across all devices, with attention to every detail.
- Platform-agnostic design - we tailor designs for various platforms like Magento, WooCommerce, and Shopify, ensuring technical compatibility and smooth performance.
- Clear and transparent communication - we discuss ideas in real time, conduct live review sessions, and fine-tune every detail with our clients.
- Consultative approach - we help our clients make informed decisions about design and functionality. Our ultimate goal is to create a product that performs and looks exactly as expected.
- Long-term partnership, not just execution - we start with what you need now, but remain open to growing together if you see us as the right partner for long-term project development.
Professional UI/UX design is an investment that ensures functionality, conversions, and long-term success.
What does the “UI/UX design for online stores” service include?
UI/UX design and competitive analysis for new online stores - a service suitable for businesses starting from scratch or migrating to a new platform. We create a completely new design concept for your online store, based on competitor analysis, user behavior, and UX best practices. From initial sketches to a complete UI ready for development - everything is tailored to your target audience and business goals.
Redesign and UX audit for existing online stores - a service suitable for stores with declining sales, outdated visuals, or low engagement. We analyze the current user experience and identify problem areas that prevent customers from completing purchases. Based on this audit, we deliver a redesigned visual concept that improves navigation, user flow, and conversions.
Strong UI/UX = a successful online store. We know how.
Creating an online store starts with precise, practical, and functional UI/UX design, ensuring the website is user-friendly and ready for development
We understand that an online store is not static - it requires ongoing attention and optimization to remain competitive, and we remain available as a long-term partner if needed.
From our experience: Мost of our clients who entrust us with their UI/UX design also choose us for the full development of their online stores.
Ready to get started?
Find out more about our service “UI/UX design for online stores” or contact us for more details.
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e-commerce tips