Enable test mode in Shopify Payments to simulate transactions. You can also use test credit cards, inspect the checkout flow across devices, and ensure apps or custom code function correctly before going live.
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Build a seamless, optimized, and revenue-focused checkout experience tailored to your brand.
Shopify Checkout Services
At eCommerce Republic, we specialize in custom Shopify checkout solutions that enhance user experience, boost conversions, and align with the latest Shopify Checkout Extensibility standards.
- Fully customized Shopify checkout tailored to your brand and customer journey
- Shopify Checkout Extensibility and Plus expertise for scalable growth
- Integrated upsell, discount, and dynamic payment features for higher AOV
- Proven optimization strategies that reduce cart abandonment and increase conversions
Shopify Checkout Customization & Extensibility Services
At eCommerce Republic, we help you unlock the full potential of Shopify’s checkout by delivering tailored checkout customization and extensibility solutions. A streamlined and high-performing checkout is essential to increasing conversion rates, reducing cart abandonment, and delivering a frictionless buying experience across all devices. With a deep understanding of Shopify Checkout’s latest features, including checkout UI extensions and functions, our development team creates personalized, high-converting checkout experiences that reflect your brand’s identity while meeting modern eCommerce expectations.
Understanding Shopify Checkout Extensibility
Shopify Checkout Extensibility is the future of customizable checkout experiences, replacing the legacy checkout.liquid files with a secure, app-based framework. It allows merchants and developers to use checkout UI extensions, Shopify Functions, and branding APIs to customize checkout workflows, logic, and design. Built to be scalable, secure, and upgrade-safe, extensibility ensures that even non-Plus merchants can benefit from advanced capabilities, while Shopify Plus merchants enjoy deeper customization options. With Checkout Extensibility becoming the standard in 2025, transitioning now is critical to remain competitive and compliant.
Comprehensive Shopify Checkout Customization Services
Our Shopify checkout services are designed to cover every element of the buying journey. From transforming your default checkout into a visually branded experience to adding advanced custom fields, age verification, input checkboxes, or notes sections, we tailor each element to your business needs. We implement one-page checkout designs, enhance payment flows, and ensure the UI aligns perfectly with your theme. Whether you’re aiming for a sleek user interface or robust logic control behind the scenes, we deliver both with precision and compliance, especially for Shopify Plus merchants who demand complete control.
Checkout Extension Development and App Integration
We specialize in building and integrating Shopify checkout apps and extensions using the latest Checkout UI Extensions framework. This allows us to embed additional content or functionality directly within the checkout without compromising performance or security. Our team configures upsell blocks, survey prompts, and loyalty options while integrating seamlessly with top third-party checkout apps. We also develop custom extensions that add value by improving user experience, capturing more data, or enabling complex B2B workflows—all while ensuring compatibility with Shopify’s checkout roadmap and Plus requirements.
Optimizing Your Shopify Checkout for Conversions
Our optimization strategies are grounded in data and tailored to each merchant’s customer journey. We conduct detailed audits of your existing checkout flow, using A/B testing, heatmaps, and real-time analytics to identify friction points. Then, we implement improvements focused on reducing bounce rates and improving speed, clarity, and ease of use. From loading speeds to field minimization and dynamic button logic, our enhancements are rooted in real conversion science. The result is a high-performance checkout that builds buyer trust and improves overall revenue without requiring a complete overhaul of your storefront.
Removing “Shipping Calculated at Checkout” Message
A common concern among Shopify users is how to remove the “Shipping calculated at checkout” message, which can confuse or deter potential buyers. We resolve this by editing theme language files or using checkout blocks that allow precise messaging based on your shipping policy. On themes like Dawn, this can be tailored directly through Shopify’s new extensibility tools, offering flexibility to replace or remove this phrase entirely. This small but impactful change helps in reducing cart abandonment and improving customer transparency.
Case Study: Custom Checkout for a DTC Brand
A direct-to-consumer skincare brand approached us with a goal to reduce cart abandonment and improve their mobile checkout flow. We implemented Shopify’s new checkout extensibility framework with branded UI elements, integrated upsell blocks, and a single-page layout for speed. After launch, the brand experienced a 23% increase in conversion rate and a 19% lift in average order value, showcasing how a smartly customized checkout can directly impact profitability. This solution also remains upgrade-safe, aligning with Shopify’s roadmap beyond 2025.
Shopify Store Design and Development
Revitalize, a respected online retailer specializing in health and wellness products, recognized the need to enhance its digital footprint due to declining conversions and engagement on their Shopify store. To tackle these challenges head-on, Revitalize partnered with Ecommerce Republic to
Shopify Store Design and Development
miRi, a distinguished online home furnishings store in the Netherlands, aimed to enhance its online presence by transitioning from a third-party platform to a dedicated Shopify eCommerce store. Partnering with Ecommerce Republic, a versatile IT company specializing in web and
Shopify Store Design and Development
The Farmer Foodie, a distinguished brand specializing in sustainable dairy and gluten-free Cashew Parm products, collaborated with Ecommerce Republic to revitalize its eCommerce store. The primary objective was to optimize the website’s appearance, usability, and functionality to provide an enriched
Shopify Store Design and Development
Beyond Skate, a prominent Australian skate shop with a thriving online presence, sought to enhance its eCommerce store with Ecommerce Republic expertise. Challenges encompassed upgrading the store from Shopify 1.0 to 2.0, addressing theme compatibility issues, and integrating apps to
Why Choose eCommerce Republic for Shopify Checkout Services
As a certified Shopify agency, eCommerce Republic blends technical expertise with strategic insight. We understand the evolving Shopify ecosystem, including Checkout Extensibility, UI Extensions, and Functions. Our approach is collaborative and data-driven, ensuring that every checkout customization delivers measurable improvements in performance, conversion, and customer satisfaction. With transparent processes and ongoing support, we’re the trusted partner for scaling brands who take checkout seriously.
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Shopify checkout extensibility is a secure, app-based framework introduced to replace checkout.liquid. It allows merchants to customize checkout using UI extensions, functions, and branding tools, while ensuring compliance, scalability, and future-proofing for Shopify’s updates.
To remove this message, you can modify the theme language file or use checkout blocks and extensibility tools to adjust how shipping details are presented to customers. This improves clarity and helps reduce cart abandonment.
Yes, Shopify now supports upsell functionality during checkout using blocks and extensions. You can offer related products or post-purchase deals without disrupting the checkout flow, increasing your average order value.
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Yes, with Shopify extensibility or compatible apps, a one-page or single-step checkout can be implemented to streamline the buying process. This setup reduces friction and improves conversion, especially on mobile devices.
Standard Shopify plans have limited access to checkout customization. Full control, including advanced scripting and layout changes, is available only on Shopify Plus using checkout extensibility and functions.
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