When you're running an ecommerce business, you're juggling a lot: designing your brand, building your website, managing inventory, processing orders, figuring out how to reach customers, and more.
But before you can tackle any of that, you need to choose your e-commerce platform. That choice affects everything else. It determines which integrations you can use, how you access and use customer data, whether you can scale as you grow, and how much you'll pay in transaction fees and platform costs.
According to G2, there are over 500 e-commerce platforms to choose from, ranging from simple website builders to comprehensive commerce suites. In the UK, online sales accounted for 27.3% of total retail sales as of April 2026, according to the Office for National Statistics, so choosing a platform that can scale with that demand matters more than ever.
Ecommerce platforms handle product listings, inventory management, checkout, payment processing, and much more. The best ones make it easy to build your website and manage your business operations together, so you can focus on growth.
What are the benefits of using an ecommerce platform
Ecommerce platforms help you manage your day-to-day operations, maintain a top-notch customer experience, and access insights from your customer data. Here are some of the benefits of using one to grow your ecommerce business:
- You control your customer data. Unlike selling exclusively through marketplaces, running your own e-commerce store means you control customer information. This ownership gives you the freedom to use that data however you need, such as sharing it with other tools to inform marketing and customer service, analyse buying patterns, create custom reports, and more.
- You can build a solid brand identity. E-commerce platforms give you the freedom to curate everything from your shopfront design and product pages to your checkout experience and post-purchase emails. When customers see consistent branding every time they interact with you, it helps build trust. And people are willing to pay for that: 87% of customers will pay more for products from brands they trust, according to Salsify's 2025 Consumer Research Report.
- You can access user-friendly tools that help handle complex tasks. Modern ecommerce platforms have built-in AI and automation to speed up tedious tasks, optimise your marketing efforts, and keep your inventory in check. Instead of managing spreadsheets and manual processes, you can automate the operational work and focus your time on strategy, growth, and customer relationships.
9 of the best ecommerce platforms
Here are 9 ecommerce platforms that connect with Klaviyo, ranging from well-established solutions to specialised platforms built for specific markets and business models:
Shopify
Shopify is one of the most well-known ecommerce platforms, supporting shops for companies ranging from small businesses to major enterprise brands. The platform handles product listings, inventory tracking, payment processing, order fulfilment, and more.
Shopify's app ecosystem lets you add functionality across marketing, service, payments and sales, while its built-in point-of-sale (POS) system connects your online and in-store retail operations. Connect with verified suppliers to find products to sell, and use Shop Pay to let customers place orders with a single tap.
Klaviyo's Shopify integration syncs order information as it happens, including placed orders, product details, customer profiles, and behavioural data. It lets you:
- Send commerce data from Shopify into Klaviyo to create a single source of truth that personalises email, text message, mobile, and WhatsApp messaging.
- Combine engagement and commerce data to gain AI-powered insights into high-value customers and purchase intent, and deliver targeted campaigns accordingly.
- Get access to real-time dashboards with recency, frequency and monetary (RFM) scores and retention metrics.
One of the reasons performance backpack brand Built for Athletes returned to Klaviyo was its integration with Shopify, which now feeds into a single hub alongside its loyalty programme, app and paid ads, helping automations drive 65% of its Klaviyo-attributed revenue.
WooCommerce
If you're familiar with WordPress, WooCommerce is likely already on your radar. It's an open-source plug-in that turns your WordPress site into a fully fledged online shop, and it's the most popular e-commerce platform option for WordPress users.
People choose WooCommerce for its extensive customisation options. You own your code and can modify anything, which makes it a good option for developers and brands that need specific features or flows.
"Woo's ecommerce platform comes with customisable and scalable features that empower stores of all sizes to launch, adapt, and grow their businesses," says Joe Franger, former director of strategic partnerships at Automattic, the company that owns WooCommerce and WordPress. "Open-source extension architecture enables users to add free or paid functionality from Woo's marketplace or any compatible extension developed by the global Woo and WordPress community," Franger adds.
With Klaviyo's WooCommerce integration, you can:
- Easily sync real-time customer and order data from WooCommerce to Klaviyo, such as browsing habits, purchases and preferences.
- Send tailored marketing messages across channels that feel personal and relevant, with dynamic product recommendations and vouchers.
- Use pre-built templates for basket abandonment, welcome messages, and more.
Men's grooming brand Particle for Men runs on WooCommerce, and Klaviyo's integration with the platform helps power the lifecycle strategy behind its growth: according to Klaviyo's case study, ecommerce revenue grew by 72% year on year, and Klaviyo now drives 54% of total ecommerce revenue.
Magento (Adobe Commerce)
Adobe Commerce, formerly Magento 2, is flexible and customisable, letting you create custom themes and templates. It includes out-of-the-box features like inventory management and integrated checkout, and also offers a page builder so you can create the personalised storefront experiences you want.
Integrate Adobe Commerce with Klaviyo to:
- Grow your subscriber lists with web forms that don't need code.
- Get a unified view of your customers' actions in your Adobe Commerce store, including placed, refunded, cancelled and fulfilled orders.
- Segment products purchased within specific timeframes using historical data such as website browsing behaviour, order value and an unlimited number of custom attributes.
- Use built-in flows for e-commerce use cases across the lifecycle, triggered by event-level data.
Justin Ragsdale, VP of strategy at full-service digital agency IM Digital, calls Adobe Commerce the "Rolls-Royce of ecommerce platforms". Most of the agency's Klaviyo clients, whether B2C or B2B, use Adobe Commerce as their ecommerce platform. "They're using Klaviyo for everything because it's so incredibly easy to use," Ragsdale says. "Klaviyo's Adobe Commerce integration affords you the opportunity to monetise all of that data that you've been gathering this whole time."
Shopware 6
Shopware 6 is a European open-source e-commerce platform that gives brands full control over their code. It's a favourite for companies selling everywhere, from their own website to marketplaces and social media, that need customisation that cookie-cutter platforms can't provide.
The platform helps you build online shops with features such as product management, payment integration, a shopping basket, checkout and more.
Klaviyo's Shopware 6 integration syncs data in real time and backfills historical records via webhooks and APIs. Customer actions such as registrations, orders and refunds are sent to Klaviyo as they happen, so you can send relevant and timely messages when customers need or want them most.
One of the reasons Dutch pet care brand HelloPets chose Klaviyo was the ease of its pre-built Shopware integration, which allows customer profiles, orders and custom pet profile data to flow automatically from Shopware into Klaviyo. The integration helped deliver a 138x global return on investment from Klaviyo in 2025.
Centra
Centra is an API-first e-commerce platform built specifically for fashion and lifestyle brands, supporting direct-to-consumer and wholesale operations from the same back end, with multi-market management, advanced analytics, and subscription handling.
The Centra integration syncs your full product catalogue with real-time updates, so you can:
- Keep Klaviyo product data up to date across every market managed by Centra, in multiple languages and currencies.
- Trigger back-in-stock messages as inventory updates flow through from Centra.
- Personalise campaigns using purchase history and catalogue data specific to each customer's market.
Luxury fashion brand Paul Smith chose Klaviyo partly because of its integration with Centra, which became the brand's new ecommerce store and provided both B2C and wholesale teams with a single platform for transactional, triggered and campaign emails. Since making the switch, Paul Smith has seen 62% of its revenue attributed to Klaviyo and created 33 active flows.
Wix
Wix is the drag-and-drop option if you want to skip the code and simply build an online shop. It's designed for small businesses and entrepreneurs who need to launch quickly without hiring a developer. With Wix, you can add extensive product catalogues to your shop, sell digital products such as gift cards and online courses, and manage subscriptions.
Klaviyo's Wix integration lets you:
- Sync customer data for targeted segmentation and messaging.
- Trigger flows to increase engagement and drive conversion.
- Use product data to personalise emails, texts, and push messages.
- Track and centralise the full customer journey with analytics that turn actions into clear, easily digestible insights.
"Wix merchants looking to grow in this post-cookie world can rely on the customer data capabilities provided by Klaviyo to reach their customers at the time, frequency and cadence they want," says Bogar Alonso, former Head of Ecommerce Outbound Marketing and Thought Leadership at Wix.
BigCommerce
BigCommerce is designed to help high-volume stores and brands build, manage, and scale their online stores. It offers a range of features, including product management, inventory control, SEO tools, and marketing capabilities, to help you drive more traffic to your ecommerce store.
With Klaviyo's BigCommerce integration, you can:
- Create and deliver marketing emails, text messages, and on-site sign-up forms, including pop-ups and fly-outs.
- Segment by products purchased in specific timeframes using historical data, website browsing behaviour, order value, and more.
- Use AI and machine learning to benchmark your performance, generate subject lines and text copy, and personalise using predictive analytics.
Mitch McKay, former manager of marketing technology partnerships at BigCommerce, praises Klaviyo's BigCommerce integration for its wealth of customer data: "It's truly improving customers' shopping experiences and creating a relationship between those customers and your brand."
commercetools
commercetools lets brands easily customise code to suit their business needs and create unique shopping experiences. With its set-up, you can create custom shopfronts, app-based commerce, voice shopping or any other interface, while commercetools manages the logic behind the scenes.
The commercetools integration lets you:
- Manage complex product data, customer history, and past orders through an AI-ready interface for easy set-up.
- Segment customers into target groups with hyper-personalised pricing and promotions.
- Track system changes and user actions with a centralised audit log.
Lightspeed
Lightspeed is a point-of-sale (POS) and e-commerce platform built for retailers who sell through both physical and online stores.
Klaviyo and Lightspeed launched an expanded integration in June 2026, syncing customer, sales and product data in real time. That means you can:
- Launch lifecycle flows such as welcome, post-purchase and re-engagement campaigns using Lightspeed data.
- Sync your Lightspeed Retail customer base to Klaviyo, including contact details and marketing consent.
- Track website activity from Lightspeed eCommerce, such as browsing behaviour and product views, to segment audiences and run behaviour-based campaigns.
We see clothing, footwear, and beauty as the retail categories most likely to benefit, given how heavily retention and personalised outreach matter there.
Grow your ecommerce business with Klaviyo
No matter which ecommerce platform you choose, Klaviyo has got your back. Klaviyo works with ecommerce platforms such as Shopify, WooCommerce, BigCommerce and more to help you:
- Send personalised messages based on real-time customer behaviour data.
- Sync your product catalogue to power product recommendations and reporting.
- Trigger flows such as abandoned basket or browse abandonment messages to increase engagement and revenue.
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