Shopify's Checkout Extensibility gives you unprecedented control over the checkout experience. We build custom checkout UI extensions, post-purchase upsells, and branded checkout flows that convert more buyers.
Tell us what your ideal checkout looks like
Shopify Checkout Extensibility puts full control in your hands. We build pixel-perfect checkout flows with custom UI extensions, post-purchase upsells, and branded thank-you pages that turn buyers into repeat customers.
From delivery customization to payment gating and loyalty rewards, every element of your checkout can be extended and personalized for your brand and customers.
Date pickers, delivery notes, custom shipping rules per product or collection.
Show, hide or rename payment methods based on cart value, location, or customer tags.
Custom branded order confirmation and tracking pages with upsells and social sharing.
Reward point redemption, tier-based discounts, and referral code application at checkout.
We follow a battle-tested checkout development process that gets your custom checkout live fast, with zero disruption to your existing store's revenue.
We audit your current checkout, identify friction points, and map out every extension needed — UI components, functions, and post-purchase flows.
All checkout extensions are built in a sandboxed environment, tested across devices, payment gateways, and edge cases before any live deployment.
We deploy to your live store, monitor conversion rates in real-time, and iterate based on data within the first 30 days post-launch.
Every checkout we build is engineered around conversion data. These are the real numbers our clients see after launching custom checkout extensibility projects with Jhango.
We were building Shopify Plus checkout extensions before most agencies knew they existed. Our depth of expertise means faster delivery, fewer bugs, and checkouts that genuinely perform.
Shopify's new Checkout Extensibility API gives unprecedented control. We use every capability to maximize your checkout conversion.
Custom colors, fonts, banners, and messaging throughout checkout. Your brand identity doesn't stop at the cart — it extends through payment.
After the customer completes payment, present one-click upsell offers. No re-entering payment info. Average acceptance rate: 12-18%.
Let customers choose their preferred delivery date. Perfect for perishables, gifts, and scheduled deliveries. Reduces "where's my order" tickets.
Gift messages, special instructions, VAT/tax IDs, loyalty numbers — custom fields that collect the data your business needs at checkout.
Custom validation rules — address verification, order minimums, age verification, product compatibility checks — all enforced at checkout.
Free shipping reminders, return policy, security badges, and estimated delivery times displayed at the right moments during checkout.
We analyze your current checkout flow, abandonment data, and conversion funnel to identify the highest-impact improvements.
We design checkout UI extensions that match your brand and are optimized for conversion. Mockups presented for your approval.
Checkout extensions built using Shopify's official APIs. Tested on staging, deployed to production with zero checkout downtime.
A/B testing and conversion tracking to measure impact. We iterate based on real data to continuously improve checkout performance.
Your checkout handles 100% of your revenue. Even small improvements create outsized results.
Branded checkout with trust signals and optimized layout consistently improves checkout conversion by 10-20%.
Post-purchase upsells generate $8-15 additional revenue per accepting customer — with zero impact on checkout completion.
Most checkout abandonment comes from trust issues, unexpected costs, and friction — all addressable with the right checkout customizations.
Jhango has deep expertise in Shopify's Checkout Extensibility APIs, having built over 100 custom checkout experiences on Shopify Plus. We understand the nuances of checkout UI extensions, payment customizations, and post-purchase flows that generic agencies simply cannot deliver. Our checkout work consistently drives measurable conversion rate improvements.
Checkout customizations that turned abandoned carts into completed orders and repeat customers.
Luxury fashion brand added branded checkout experience with trust signals and delivery date picker. Checkout abandonment dropped by 18% within the first month.
Wellness brand implemented one-click post-purchase upsell with 16% acceptance rate. Generated an additional $12 revenue per accepting customer with zero checkout friction.
Food delivery brand added delivery date picker and order notes at checkout. "Where is my order?" tickets dropped by 40% and customer satisfaction scores improved significantly.
Checkout Extensibility is Shopify's official framework for customizing the checkout experience on Shopify Plus stores. It replaces the old checkout.liquid with a more secure, app-based approach using checkout UI extensions, Shopify Functions, and post-purchase extensions. It allows custom fields, payment customization, delivery date pickers, upsells, and branded checkout experiences.
Yes, Checkout Extensibility and custom checkout UI extensions are exclusive to Shopify Plus. Standard Shopify plans only allow basic checkout branding (logo, colors). If you want custom fields, post-purchase upsells, delivery date pickers, payment customization, or checkout validation rules, Shopify Plus is required.
Post-purchase upsells appear after the customer has already completed their payment but before the thank-you page. The customer's payment is already processed, so there is zero risk of abandonment. If they accept the upsell, the additional item is added to their order without re-entering payment information -- it is a true one-click add. This typically achieves 12-18% acceptance rates.
Yes, delivery date pickers are one of our most requested checkout extensions. Customers can select their preferred delivery date during checkout, which is perfect for perishable goods, gift deliveries, scheduled shipments, and subscription boxes. The selected date syncs with your fulfillment workflow and can be sent to your shipping or logistics system automatically.
Most checkout customization projects take 1-2 weeks. Simple branding and trust signal additions can be done in 3-5 days. Full checkout overhauls with custom UI extensions, post-purchase upsells, delivery date pickers, and validation rules typically take 2-3 weeks. All changes are tested on a staging environment before going live with zero checkout downtime.
No. Checkout Extensibility is built on Shopify's secure checkout infrastructure. All customizations run in a sandboxed environment that cannot interfere with payment processing, PCI compliance, or checkout security. Your payment gateway, fraud detection, and security certifications remain fully intact throughout the customization process.
Checkout customization projects start at $3,000 for basic branding and trust signals. Post-purchase upsell setup ranges from $3,000-$5,000. Full checkout overhauls with custom extensions, validation, and advanced features range from $8,000-$15,000. Given that checkout handles 100% of your revenue, even a 5% conversion improvement typically pays for the investment within weeks.
Yes, we build custom checkout UI extensions that add any field you need -- gift messages, purchase order numbers, VAT IDs, delivery instructions, or company names. These fields are validated in real-time and the data is stored as order metafields that sync with your fulfillment and ERP systems. Custom fields improve the buyer experience while capturing critical business data you need for order processing.
Checkout.liquid was the old method of customizing Shopify checkout by directly editing the checkout template code. Shopify deprecated it in favor of Checkout Extensibility, which uses sandboxed app extensions that are more secure, maintainable, and upgrade-safe. Unlike checkout.liquid, Extensibility automatically receives Shopify's checkout improvements and security patches without breaking your customizations.
Absolutely. Using Shopify Functions, we build custom logic that shows, hides, or reorders payment methods based on cart value, product type, customer tags, or shipping address. For example, you can hide COD for orders above a certain amount, show Buy Now Pay Later only for orders over a threshold, or prioritize specific payment gateways for international customers.
Shopify Functions are server-side logic extensions that run within Shopify's infrastructure to customize discounts, shipping rates, and payment options at checkout. They execute in under 5 milliseconds and are far more performant than third-party API calls. We use Shopify Functions to build custom discount logic, shipping rate calculations, payment method filtering, and order validation rules that run natively within the checkout flow.
Yes, Shopify Plus now supports one-page checkout layouts through Checkout Extensibility. We configure the checkout to display shipping, payment, and order summary on a single page, reducing the number of steps a customer takes to complete their purchase. Combined with custom branding, trust signals, and streamlined form fields, a one-page checkout can significantly reduce abandonment and speed up the overall purchase flow.
Choose the plan that fits your needs. All plans include dedicated project manager and unlimited revisions.