Introduction

Your traffic is great. Your products solve customers’ problems. But for some reason, your conversion rate is low, and you have no idea what to do about it. A global average e-commerce conversion rate is 2.5%, and top performers manage to deliver 4.5-6%, so there is plenty of room for improvement. The crucial insight is that most of the problems affecting conversion rate optimization stem from the e-commerce mistakes companies make when building their online presence. Various issues on the checkout page, the lack of mobile optimization, and website malfunctions kill sales by pushing customers away before they make a purchase. However, many of these errors can be mitigated to improve conversion rates by 200-300% or more with little or no effort.

Below, you will find ten mistakes that are killing your sales, along with conversion rate optimization advice, tips, and tricks that will help you get excellent results in 2023 and 2024.

Mistake 1: Forces Customer to Make an Account Before Checkout

Forcing the customer to make an account before checkout is one of the deadliest e-commerce mistakes. People who want to make a purchase do not want to waste their time registering on your website just to pay for the items. Forrester reports that around 25% of your potential customers will leave if they are not offered the option to check out as a guest. This means giving your customers the option to check out as a guest is the easiest way to improve your conversion rate.

If you want to promote your account creation, make it optional at the end of the checkout process. Offer your customers some kind of reward (discount, points) for completing their profile.

Mistake 2: Does Not Offer Proper Mobile E-commerce Experience

Over 60% of traffic comes from mobile devices. However, most companies fail to provide their customers with an appropriate mobile experience. According to Contentsquared’s 2026 report, desktop conversion rates are 3.4%, whereas mobile conversion rates only reach 2%. Moreover, the mobile cart abandonment rate reaches 85.65%, on average, across industries, so poor mobile optimization is the second-largest driver of lost revenue for e-commerce retailers. Therefore, to stop shipping products to customers who only browse your website on their smartphones, you need to offer these users a seamless mobile experience.

Test your website on real devices at least once a month instead of using browsers’ mobile view mode. Keep the website’s mobile version’s loading speed to fewer than two seconds. Remember that buttons should be at least 44px tall and forms should be completed by tapping. When the mobile version of the website is optimized, it is time to make the smallest screen your primary sales channel.

Mistake 3: Has Slow Page Speed/Performance

A slow website is one of the biggest e-commerce mistakes that lowers any business’s conversion rate. Industry research proves that for every second you take longer to optimize your website, it can drop your conversions by 7% and increase your bounce rate by 14%. The website landing on users’ screens in less than a second has a 2.5x better conversion rate than the one taking more than 5 seconds to load. You should optimize your website to make it fast enough so that it does not decrease your conversion rate.

You should use the most efficient tools to make your website load blazing fast. Static content should be distributed through a CDN to cache it on multiple servers worldwide. You can optimize images and defer JavaScript to speed up your website’s core functionality. Additionally, minify CSS and JavaScript files to make them smaller and easier to process. If you run a Shopify store, you should optimize all the apps that have access to your account.

Mistake 4: Has Poor/Hidden Shipping Policy

Baymard Institute reports that 48% of all cart abandonment cases are caused by poor or unexpected shipping policies. Basing your shipping costs purely on the weight of the package is a huge e-commerce mistake. Make sure to research the market to see what your competitors offer and set your shipping costs to match the industry standard.

Mistake 5: Does Not Offer Various Payment Options

Most people would rather buy from a company that offers more payment options. In particular, retailers that only offer one form of express payment (e.g., card-only) have a 54% conversion rate, whereas companies that provide at least four options see their conversion rate climb to 67%. For an average company with $1,000,000 in annual revenue, it means that they can increase their sales by approximately $180,000.

Besides that, 24% of customers lose trust and become dissatisfied with a company if their preferred payment option is unavailable. Make sure to offer your customers a variety of payment options.

Mistake 6: Has Poor Product Pages

Vague product descriptions, low-quality images, and poor content block customers from making a purchase. According to research, most product descriptions on the web are created using manufacturers’ guidelines. Generic language is ineffective at convincing buyers to make a purchase and promotes little or no improvement in either conversion rate or search engine visibility. If customers cannot get answers to their questions on the product page or feel safe purchasing from you, they will not buy from you. This is one of the critical e-commerce mistakes as product page optimization is the cornerstone of conversion rate optimization.

Make sure to write compelling product descriptions and invest in high-quality visuals to increase the conversion rate of your product pages. You can also feature your products in videos and supplement your pages with written product reviews, videos, and other helpful information for customers. For example, brand X increased its conversion rate by 80% after implementing video commerce practices.

Mistake 7: Poor Navigation/Search Functionality

Users who cannot find their way around your website while searching for the products they are looking for will be frustrated and go somewhere else. Too many first-level navigation categories, too few, or no breadcrumbs are some of the navigation mistakes in e-commerce that lower the conversion rate of a website. The fact is, most high-intent users discover your website through a search query. Failure to optimize this part of your website can lead to a poor conversion rate.

First-level navigation categories should number between five and seven. Breadcrumbs should be implemented so that a user knows exactly where they are on your website. Faceted navigation is also essential if you want to have control over your catalog. You must also make sure that your search functionality is operating properly, so a typo should not return irrelevant search results.

Mistake 8: Poor Trust Signals/Security

Lack of trust signals and security is one of those e-commerce mistakes that affects multiple areas of the customer’s journey. When a client finds your company’s website, they first of all try to find out if they can trust you. By showcasing reviews, trust badges, and other trust signals, you will be able to convince more clients that their hard-earned money and personal data will not be wasted.

Mistake 9: Poor Post-Purchase Experience/Checkout Experience

The customer experience should not end when the customers finalize their purchase. If your client receives their order late or in poor condition while not being able to reach you, they will certainly stop shopping with you in the future. Studies indicate that 65% of your clients will stop shopping with you if you deliver their order late or irregularly two or three times, and 81% of your customers will stop shopping with you after two returns.

After making a purchase, make sure to ask your customers to leave an email address where you can notify them of the delivery location of their order. First and foremost, you have to keep them posted on the status of their order so that you do not lose them due to an incorrect delivery address or another issue unrelated to your business. Finally, you also need to assist your clients in any way you can since there is a 50% chance that a customer who had their purchase abandoned cart email delivered will go back to your website and make the purchase. These are just a few reasons why you need to offer the best client experience even after the sale to guarantee your customers’ lifetime value.

Mistake 10: Poor Analytics/Does Not Test Different Approaches

Without analytics, you are like an airline without planes; you cannot get anywhere. Conversion rate optimization is not rocket science, but it is crucial to use the right tools to get the best results. Many companies mistakenly believe that conversion rate optimization is only about changing buttons’ color and performing a couple of A/B tests. However, the primary focus should be on delivering an excellent customer experience based on your research and data.

It is vital to implement the proper analytics suite to track users’ behavior on your website. Record their actions, replay their sessions, and analyze their queries. After identifying what is working and what is not, you will be able to take gradual steps to optimize your site and boost your conversion rate. You can optimize your first scroll view, product page, checkout process, and much more.

Without these optimization techniques, your website may look messy and you will not be able to sell anything to both new and returning customers. The good news is that the majority of these ecommerce mistakes are relatively simple to remedy. After the issues have been resolved, your conversion rate will skyrocket. Remember, a great user experience has no price, while the cost of bad conversion rate optimization can be extremely expensive.

Seven Doors Solutions has helped numerous companies identify and fix ecommerce mistakes, resulting in higher sales and increased customer satisfaction. We can assist you too! Contact Seven Doors Solutions today and transform your conversion rate optimization efforts.

Frequently Asked Questions

What is the average ecommerce conversion rate in 2026?

The global average ecommerce conversion rate is 2.5%. The desktop and mobile ecommerce conversion rates equal 3.5-4% and 1.8%, respectively. The conversion rates of top ecommerce stores are 4.5-6%.

How much does cart abandonment cost ecommerce businesses in 2025?

The value of abandoned carts for businesses in 2025 equals $2.96 trillion annually in potential merchandise due to cart abandonment. Of this total, an estimated $192.4 billion is recoverable through optimization and effective recovery strategies. The cart abandonment rate in 2025 is 70.19%.

What are the most common reasons for cart abandonment in 2025?

The most common reason for cart abandonment is the high shipping cost (48%). The other frequent reasons include a requirement to register, checkout inconvenience, the unavailability of payment methods, and website performance issues. Moreover, 20% of consumers abandon their carts due to a long and complicated checkout process.

How can I improve my ecommerce conversion rate quickly?

You can improve your ecommerce conversion rate quickly by offering your customers a convenient and fast checkout. You should make the guest checkout option your default option. You should optimize your website for mobile users and make it easy to navigate. You should reduce the page loading time to no more than two seconds. You should allow your customers to pay with various payment methods. You should inform them about the shipping cost. You should also add reviews and testimonials to your website. All these changes should increase your conversion rate by 35% or more.

What is the role of ecommerce SEO in conversion rate optimization?

Ecommerce SEO is a vital component of any conversion rate optimization (CRO) strategy. It drives relevant traffic to your website, but you will see that there are significant barriers to conversion on your website that are detrimental to your business’s performance. Addressing these issues will significantly reduce the CRO loss due to technical SEO problems.