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10 mistakes to avoid when creating an online store
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10 mistakes to avoid when creating an online store

Online commerce seems like a fairly simple business. You need to choose a niche, then set up a website, launch advertising, and your first customers are ready to buy.

10 mistakes to avoid when creating an online store

But in practice, everything turns out to be much harder than in theory: eight out of ten new online stores do not even make it to their first anniversary. Where does this failure rate come from and how can you avoid adding to the sad statistics? Let’s take a look with Yevhen Kasyanenko, our expert who has accompanied dozens of e-commerce launches and knows where owners most often slip up.

“Creating an online store is not a one-time launch, but a long-term system where technical solutions, marketing, logistics, and content work as a single system. Neglecting even one aspect causes the store to lose ground,” says the expert.

If you are planning to open your own online platform, be sure to study the tips for creating an online store in this article. And when you decide to seek professional help, check out our KISS Software page, which describes our services and the benefits of working with us in detail.

Avoid Critical Mistakes When Launching an Online Store

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Why do online stores close?

At the start, everything seems simple: “I’ll connect the payment system, set up advertising, post the goods, and the money will start rolling in.” But real professional e-commerce is more complicated than that. You need to decide on dozens of issues in advance: what to sell, how to arrange categories, how to place an order in two clicks, how to deliver purchases, and how to support the customer after payment. If something goes wrong somewhere, profits stop.

“Many people are familiar with the typical scenario where the owner opens a store with bright eyes, and six months later wonders why advertising is eating up the budget and shopping carts are empty. The reason is almost always not a bad niche, but a chain of small but critical mistakes,” notes Yevhen Kasyanenko.

 

 

To keep your project from falling into these statistics, we’ve compiled ten of the most dangerous miscalculations and shown how to avoid them. Each point is based on real experience with online stores, not theory from a textbook.

Top 10 mistakes that can ruin your online store

Before we dive into the details of why an online store isn’t selling , let’s agree on the main thing: our expert, Yevhen, describes each point not to intimidate, but to provide practical advice. If you are already preparing a project for launch, use the list as a checklist. If your store is already up and running, check to see if it has any of these pitfalls.

Mistake #1: A vague niche and lack of a clear USP

Based on his experience, Yevhen Kasyanenko has noticed that too many entrepreneurs sell everything at once and lose focus. As a result, the site resembles a warehouse of discounted goods rather than a platform that meets a specific need.

In this case, to correct the mistake, you need to:

  • Formulate a specific commercial offer. For example: “healthy lifestyle products with 2-hour delivery within the city.”
  • Identify unique advantages. For example, this could be online consultations with veterinarians if you sell pet food.
  • Create a portrait of your target audience. Young parents, athletes, students, etc. – speak to them in their language.

“A clear USP is your strong point. Without it, even the most beautiful presentation will not attract buyers,“ – Yevhen Kasyanenko.

Mistake #2: An overly complex or ”self-written” website without experience

Many novice entrepreneurs are convinced that an online store needs professional and complex functionality from the very beginning. The result is cumbersome pages, pop-up errors, and confusion in the shopping cart. 

How to avoid it:

  • Use proven CMS or builders tailored for e-commerce. Platforms such as Shopify, WooCommerce, or OpenCart are already equipped with responsive themes, payment modules, and basic analytics. Launching is quick—no code bugs or late-night edits.
  • Don’t chase overly complex solutions—start with an MVP and refine it gradually. The minimum viable version should give the buyer three things: convenient navigation, fast loading, and a clear checkout process. The simpler the interface, the less likely the customer is to go to a competitor.
  • Delegate the technical part to specialists. Attempts to fix a little code without experience often turn into an endless chain of bugs. By entrusting the configuration to us at KISS Software, you save yourself a lot of stress and can focus on developing your business instead of fighting bugs.

 

 

“The best website is one that doesn’t get in the way of buying. And if it’s also pleasing to the eye, you’re already one step ahead of the competition,” notes Yevhen Kasyanenko.

Mistake #3: Lack of detailed descriptions and high-quality photos

Online shopping is like choosing blindly. If the product card is sparse, the customer closes the tab and looks for a site where they can see the item with their own eyes.

What to do:

  • Write useful, unique texts about the product. A list of dry characteristics is not a description. Talk about the benefits: “Lightweight plastic withstands -20 °C and does not crack – ideal for winter fishing.” This approach strengthens SEO and answers questions.
  • Take photos of the product from different angles, showing the details. From a general view to a close-up of the texture, zipper, and packaging. A light background and natural lighting add professionalism and credibility. The more honest photos you have, the fewer doubts the buyer will have.
  • Add video reviews, size charts, and real reviews. Videos show the product in action, size charts prevent returns, and photo reviews from real buyers remove the last barriers.

“A product card is a mini-presentation, not a bookmark in a catalog. The richer it is, the easier it is to sell,” says Yevhen Kasyanenko.

 

Mistake #4: Confusing navigation and a chaotic catalog

Poor navigation complicates perception. People get lost, get angry, and don’t buy what they want. After all, no one wants to wander through unstructured and endless sections.

How to fix the situation

  • Build categories based on buyer logic, not internal warehouse program codes. Example: “Clothing → Men’s → Jackets” sounds clearer than “Season → Demi-season → Item 123.”
  • Add basic filters—brand, size, price, color. The buyer will select the desired parameters in a second and see a short relevant list instead of hundreds of cards.
  • Leave filters only where they are really needed. Extra fields scare people off and slow down the search.

The shorter the path to the product, the higher the chance that the customer will click “Buy” instead of the cross in the corner of the browser.

“If a person doesn’t find what they need in three clicks, they will most likely leave. And with them goes your profit,”emphasizes Yevhen Kasyanenko.

 

Mistake #5: Complicated order form and mandatory registration

A long questionnaire kills the desire to buy. The more fields there are, the faster the desire to buy anything or even contact such a seller disappears.

How to turn the ordering process into a normal process:

  • Make it possible to buy in one click: name + phone number or email address — and that’s it. The buyer leaves their phone number or email address, and the manager calls back to confirm the details. Conversion rates increase, and shopping carts are rarely abandoned.
  • Make registration voluntary and quick. Authorization via Google, Apple ID, or social networks — two taps, and your personal account is ready. No “Qwerty2025” passwords or confirmation emails.
  • Smart fields instead of endless lines. One address with a checkbox matches the payer’s address, auto-fill of the city by index, drop-down list of streets. The less manual input, the fewer errors and nerves.

“The payment process should be as simple as possible: quick and easy. This is what we always emphasize when we launch online stores for our clients,” emphasizes Yevhen Kasyanenko.

 

Mistake #6: One carrier and one payment method

When a seller only offers a delivery and payment option that is convenient for them, it is a direct invitation for the buyer to go to a competitor. Every customer has their own habits: one won’t part with Apple Pay, another only trusts cash on delivery, and a third wants to pick up the package themselves after work.

What to implement to give the buyer a sense of freedom of choice:

  • Offer at least two or three delivery methods and several payment options.
  • Courier, postal service, pickup point; online card, cash on delivery, Apple Pay/Google Pay. The wider the menu, the more shopping carts reach checkout.
  • Describe a transparent return policy. Simple terms, clear guarantees, clear step-by-step instructions — and the customer is less worried about paying right away. Remove fear — gain trust.
  • Add pickup where possible. Some people like to drive by and pick up their order in person—saving on shipping and making sure the product is in good condition. Plus, offline contact strengthens loyalty.

“People are more willing to buy when they feel they are in control,” notes the expert.

 

Mistake #7: Lack of promotion and traffic analysis

You can have the perfect store, but if no one has heard of it, sales will remain limited to a small circle of people. Promotion without numbers, however, is no better: money is spent, but there is no understanding of the result.

How to bring your store out of the shadows and keep your finger on the pulse of data:

  • Launch contextual advertising – Google Ads and Google Shopping. This is the fastest way to catch hot demand. Important: clear keywords, test ads, regular bid monitoring.
  • Boost your SEO and content marketing. Without search, you are dependent only on paid traffic. Optimize your cards, write useful articles, add unique descriptions – search engines love depth and value for the reader.
  • Use social media and targeting. Wherever your audience is, you should be there too: Instagram, TikTok, Pinterest, Facebook. Short reviews, life hacks, user reviews, and paid promotion on top of that to scale your reach.
  • Turn on analytics and look at the numbers, not your feelings. Google Analytics 4, Yandex.Metrica, end-to-end dashboards. See where your customers are coming from, where they are failing, and which campaigns are really paying off. Without this picture, marketing is not effective.

Not sure where to start with your online store?

We’ll review your idea, suggest the best tech stack, and point out potential risks. Get practical advice from KISS Software experts — no fluff, just real insights.
Mistakes when creating a store Get a Consultation

Mistake #8: Ignoring mobile users

Smartphones have long been the main screen. More than 50% of orders are placed from them. If the site on the phone scrolls left and right, buttons are cut off, or it takes forever to load, the user will click the X and leave.

How to turn a mobile visit into a purchase:

  • Test the layout on different devices and browsers. Android Chrome, iOS Safari, tablets, older models — go through the customer’s journey to payment. A misaligned button or a pop-up on one of the screens will lead to the purchase being abandoned.
  • Get the loading speed down to 3 seconds or less. Compress images, enable caching, and remove heavy scripts. Every extra second = minus 7% conversion.
  • Design for fingers, not for a cursor. Buttons ≥ 44 px, large input fields, font readable without zooming. Place the main actions in the thumb zone at the bottom of the screen.

“If it’s inconvenient for a customer to press the purchase button on their phone, you’ll lose them,” reminds Yevhen Kasyanenko.

 

Mistake #9: Not understanding logistics and inventory accounting

In online retail, “out of stock” sounds like a death sentence. Trust falls, the customer leaves. If inventory is kept in a notebook and delivery times are calculated by eye, then the store risks its money and reputation.

How to get organized and not let the buyer down:

  • Implement automatic inventory control. The system will tell you when an item is running low, create a purchase order, and send a reminder to the manager.
  • Set up clear delivery and notifications. Clear deadlines, a tracking code immediately after shipment, push or email notifications at each stage — customers are calm, there are fewer returns, and loyalty is higher.
  • Keep backup suppliers. One partner has delayed a shipment? An alternative supplier will fill the gap. Diversifying your supply chain protects your turnover even during peak seasons.
  • Conduct regular inventory checks. Once a week, reconcile physical balances with the system. Find discrepancies before the customer sees them.

Mistake #10: Reluctance to hire professionals

When a store owner tries to do everything themselves—from layout to advertising—both speed and quality suffer.

How to solve the problem:

  • Outsource key tasks to a specialized team. Outsourced specialists will take care of development, design, SEO, and advertising. The project will launch faster, without costly beginner mistakes.
  • Entrust the setup of the store to e-commerce experts. The platform, UX/UI, integrations, analytics—everything is done correctly from the start, without subsequent rework.
  • Focus on strategic issues. By freeing up time from technical routine, the owner can focus on the product range, new markets, and partnerships.

“If a manager spends time on minor technical tasks instead of developing the business, growth will inevitably slow down,” says our specialist, sharing his experience.

Tips for creating and optimizing an online store from KISS

If you want to avoid the pitfalls described above, it is better to act proactively.

 

 

We are confident that preventive measures will improve performance. And, importantly, if you are unsure about something or feel that you lack expertise, save yourself time, nerves, and money—turn to the professionals.

Our approach is as follows:

  • niche analysis;
  • UX and structure;
  • analytics and automation;
  • advertising and SEO settings;
  • training and support;
  • growth of indicators and scale.

“We don’t just create online stores, we create systems that grow with you and show incredible results,” emphasizes Yevhen Kasyanenko.

Conclusion: the key to success in e-commerce

Results are impossible without mistakes, and that’s not a death sentence, but it’s important to notice and fix them in time.

If your online store isn’t selling, figure out where the weak link is. Better yet, entrust this to the team of professionals at KISS Software. We will help you avoid critical miscalculations and build an online store that really makes a profit. After all, as our leading expert says: “The best store is not just a beautiful website. It is a platform that is convenient for the customer and profitable for the owner.”

 

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