Needing custom B2B pricing or checkout behaviour that no Shopify app handles without stitching together three tools that barely talk to each other?
Running a checkout customisation built on liquid hacks that breaks every time Shopify ships an update -- and migrating off it means rebuilding from scratch?
Migrating from WooCommerce or Magento to Shopify but worried about losing years of order history, customer accounts, and the SEO rankings that took you this long to build?
Custom Shopify Development
Custom Shopify development beyond themes -- private and public Shopify apps, Plus checkout extensibility, Hydrogen headless storefronts, ERP and 3PL integrations, and migrations from WooCommerce and Magento.
We've shipped 100+ products. Off-the-shelf Shopify apps cover common use cases. When your business has B2B pricing, custom checkout logic, a fulfilment workflow that no app handles, or a migration from a legacy platform, you need custom development built to Shopify's API spec.
Custom Shopify apps built to Admin API and Storefront API spec, published to the App Store or kept private
Shopify Plus checkout extensibility -- checkout UI extensions, post-purchase pages, and checkout validation without liquid hacks
Hydrogen headless storefront with full design freedom, sub-1s page loads, and Shopify Payments at checkout
Shopify migrations from WooCommerce, Magento, and BigCommerce with product, order, and customer data preserved
RaftLabs builds custom Shopify development beyond off-the-shelf themes -- private and public apps built to the Admin API and Storefront API, Shopify Plus checkout extensibility using checkout UI extensions, Hydrogen headless storefronts, third-party integrations connecting Shopify to ERP, 3PL, CRM, and loyalty systems, platform migrations from WooCommerce and Magento with SEO preservation, and Core Web Vitals performance audits. We have shipped 100+ products and work with Shopify Plus merchants. Most projects deliver in 8--14 weeks at a fixed cost.
100+Products shipped
·Shopify PlusCheckout extensibility
·FixedCost delivery
·8-14Week delivery
Shopify's platform is capable. Most stores are not using it to its full capability.
The gap between a standard Shopify theme and what Shopify can actually do is large. The Admin API and Storefront API expose data and logic that no theme template touches. Checkout extensibility for Plus merchants lets you add custom fields, validation, upsell blocks, and post-purchase pages in ways that survive every Shopify update. Hydrogen gives you a React frontend with Shopify as the commerce backend -- you keep Shopify Payments, buy now pay later, and the checkout, but the storefront is yours to design completely.
We build the parts of Shopify that off-the-shelf apps and theme developers don't cover. Private apps for fulfilment logic your 3PL requires, B2B pricing rules your sales team manages, or reporting your finance team actually needs. Integrations with ERP systems, loyalty platforms, and CRM tools that sync orders and inventory in real time, not in overnight batches. Migrations from WooCommerce and Magento that preserve product data, order history, and customer accounts without dropping your search rankings.
What we build
Custom Shopify apps
Private apps and public apps built to the Shopify Admin API and Storefront API spec. Custom fulfilment logic for stores with complex pick-pack-ship rules or 3PL API requirements. B2B pricing rules where different customer groups see different price lists, with quote generation and approval workflows. Subscription management for brands with recurring revenue models. Custom reporting that pulls order, customer, and inventory data into a format your operations team can actually work with. App Bridge integration for native admin UI so your team manages the app inside the Shopify admin. Public apps can be published to the Shopify App Store or kept as private apps for internal use.
Shopify Plus checkout customisation
Checkout extensibility for Shopify Plus merchants -- the supported extensibility model that survives Shopify platform updates, not liquid-based checkout hacks that break on every release. Checkout UI extensions for custom fields, upsell blocks, gift messaging, and delivery instructions displayed inside checkout. Post-purchase pages for one-click upsells and cross-sells after payment is captured. Custom payment method display and checkout validation rules that block orders failing your business logic -- minimum order value, B2B account approval, product restriction by customer tag. Built to Shopify's extensibility spec so it upgrades with the platform.
Shopify Hydrogen and headless
React-based headless storefronts using Shopify's Hydrogen framework -- Shopify as the commerce backend, a custom React frontend as the storefront. Full design freedom: custom product page layouts, non-standard collection page structures, animated interactions, and page architectures that a theme cannot produce. Sub-1s page loads from server-side rendering and Shopify's CDN. Shopify Payments and buy now pay later stay in place because checkout still runs on Shopify -- Hydrogen replaces the storefront, not the checkout. The right choice for brands where the storefront is a product in itself, not just a shell around a product catalogue.
Third-party integrations
Connecting Shopify to ERP systems, 3PL and fulfilment APIs, accounting platforms, CRM systems, loyalty engines, and custom internal tools. Bidirectional sync for orders, inventory, and customer data -- changes in Shopify propagate to the connected system and vice versa. Webhook-based real-time sync rather than scheduled batch imports that leave your systems out of step for hours. Custom field mapping to handle differences between Shopify's data model and the schema of your ERP or 3PL. Error handling and retry logic so a failed webhook does not leave an order un-synced. We've integrated Shopify with NetSuite, Brightpearl, ShipBob, ShipStation, HubSpot, Salesforce, and custom internal systems.
Shopify migration
Migration from WooCommerce, Magento, BigCommerce, or a custom platform to Shopify. Product data migration with variant structure, image associations, and metafield content preserved -- not a flat CSV import that loses your product architecture. Order history migration so your customer service team and reporting dashboards retain full purchase history. Customer account migration with password reset flows so existing customers don't have to create new accounts. Redirect mapping from old URLs to new Shopify URLs for every product, collection, and page -- so search rankings transfer rather than reset to zero. Zero-downtime cutover plan with DNS switch timing that minimises the window where both platforms could be live.
Shopify performance and SEO
Core Web Vitals audit for Shopify themes -- Largest Contentful Paint, Cumulative Layout Shift, and Interaction to Next Paint measured against Google's field data thresholds, not just lab scores. Image optimisation, lazy loading, and script deferral for theme assets that slow first render. Structured data implementation for product rich snippets, breadcrumb trails, and FAQ schema that increases click-through rate from search results. Collection and product page title, meta description, and heading structure configuration. International market setup with hreflang implementation for multi-region stores selling in multiple languages or currencies -- so each market version gets indexed for its own locale rather than competing with itself.
Frequently asked questions
A theme customisation modifies the presentation layer -- layout, design, content blocks -- using Liquid templates and JavaScript in the storefront. A custom app extends Shopify's backend behaviour using the Admin API and Storefront API. If you need custom pricing logic, a B2B approval workflow, a custom fulfilment rule, or integration with an external system, that requires a custom app -- it cannot be done in a theme. For Shopify Plus merchants, checkout extensibility sits between the two: it modifies the checkout experience using Shopify's own extension points rather than theme code or custom app backend logic. We scope each project to determine what type of development is needed before we build anything.
Yes, and migrating off liquid checkout is the right move for Plus merchants. Shopify deprecated liquid checkout customisations for Plus merchants and the extensibility model is the path forward. Checkout UI extensions run in Shopify's sandboxed environment and are maintained across Shopify platform updates -- your customisations don't break when Shopify ships a new checkout version. The trade-off is that extensibility has defined extension points you work within rather than full HTML access to the checkout page. For the majority of checkout customisation needs -- custom fields, upsell blocks, validation rules, post-purchase pages -- the extension points cover the requirement. We assess whether your current liquid checkout logic can be reproduced using extensibility during scoping.
SEO preservation in a platform migration comes down to three things: URL structure, redirect mapping, and structured data. WooCommerce and Magento URLs rarely match Shopify's default URL structure, so every product, category, and page URL needs a 301 redirect to its new Shopify equivalent. We build the redirect map before go-live and load it into Shopify's redirect system or middleware so no URL returns a 404 at cutover. We also migrate meta titles, meta descriptions, and alt text rather than using Shopify defaults. Structured data -- product schema, breadcrumb schema -- is implemented on the new Shopify theme. Google Search Console is monitored post-launch for crawl errors and ranking shifts. Most well-executed Shopify migrations recover rankings within 60--90 days.
A custom private Shopify app for a single business function -- custom pricing, fulfilment logic, or a third-party integration -- typically runs $15,000--$40,000. A Shopify Plus checkout extensibility project covering custom fields, upsell blocks, and post-purchase pages typically runs $20,000--$50,000. A Hydrogen headless storefront built from design to launch typically runs $50,000--$120,000. A platform migration from WooCommerce or Magento including data migration, redirect mapping, and SEO configuration typically runs $25,000--$75,000 depending on catalogue size and data complexity. We scope every project before pricing -- contact us with your Shopify plan, what you're trying to build, and your go-live timeline.
Talk to us about your Shopify development project.
Tell us your Shopify plan, what you're trying to build or integrate, and your go-live date. We'll scope the right approach and give you a fixed cost.