Certified Shopify Plus developers who ship your build on time and on spec
Custom checkout extensions. Headless storefronts. B2B wholesale channels. ERP and CRM integrations. Redefine delivers your full Shopify Plus build on a fixed timeline. No scope creep, no open-ended estimates.

Most enterprise Shopify Plus projects run over budget and past deadline
We engaged three agencies before Redefine. All three over-promised timelines and under-delivered on Shopify Plus features. The checkout extensibility we were sold in the pitch was handed off to a junior contractor six months in.

From signed brief to live Shopify Plus store in 12 weeks
A fixed five-phase program takes your store from brief to launch. You get checkout extensibility, a B2B channel, and full integrations. Each phase ends with a deliverable you approve first.
We document requirements, tech stack, Plus feature roadmap, integration mapping, and timeline. Everything is confirmed before development starts.
Design tokens, component library, and checkout UI extensions are wireframed. Your team approves them before a single production component ships.
We build checkout extensions, Shopify Functions, the B2B channel, Flow automation, and every ERP and CRM integration across five sprints.
Full device, browser, and load testing plus checkout and integration validation. Your team runs UAT in staging before anything reaches production.
Zero-downtime launch, then 48 hours of monitoring. You get full handover docs and team training on every Plus capability.
The full Shopify Plus stack we build for every enterprise program
Every Redefine Plus build activates your whole platform, not just the storefront theme. Click any node to see how each part connects to your operations.
Organization admin, multi-store setup, user access, and custom domain configuration for all markets. The foundation everything else connects to.
React components rendering in the checkout: upsell blocks, trust badges, custom form fields, loyalty point display, and gift message inputs.
Server-side custom logic: tiered discount rules, custom shipping rate calculation, payment method filtering by order type or customer segment.
Company accounts, net payment terms, custom price lists per company, purchase approval workflows, and dedicated B2B storefront routing.
Workflow automations triggered by store events: customer tagging, fraud flagging, inventory reorders, B2B approval notifications, and loyalty tier updates.
Real-time data flows between Shopify Plus and your ERP, CRM, and WMS. That means live inventory, unified customer data, and automatic fulfillment routing.
Six Shopify Plus development capabilities delivered in every engagement
Not a menu of add-ons. Every Redefine Plus development program includes all six service lines, scoped to your specific catalog, workflow, and integration needs.
Custom Checkout Development
Checkout UI extensions, post-purchase flows, and Shopify Functions built to your spec. Upsells, trust signals, custom fields, and payment logic that survive every platform upgrade.
Headless and Hydrogen Architecture
Decoupled storefronts built on Shopify Hydrogen and React Router. Edge-rendered, globally fast, and fully composable, without the speed penalties of standard themes.
See Plus B2B ServiceEnterprise Resource Planning and System Integration
Real-time two-way sync between Shopify Plus and your ERP, CRM, and WMS. Your inventory, orders, customer data, and finances stay accurate across every system.
B2B Channel Shopify Plus Implementation
Full B2B on Shopify Plus: company accounts, buyer portals, custom pricing, net terms, and approval workflows. It runs alongside your direct-to-consumer store.
Performance and Core Web Vitals
We tune your theme or Hydrogen store for LCP under 2 seconds on mobile. Faster pages lift conversion and protect your search rankings.
See Technical Search Engine OptimizationMigration from Other Platforms
Zero-downtime migration from Magento, BigCommerce, WooCommerce, or custom platforms. We move all product, customer, and order data while preserving SEO rankings and redirects.
A complete B2B headless Shopify Plus build, delivered on schedule

An established B2B promotional products company serving complex catalogs, customer-specific pricing, and approval-based purchasing workflows.
The headless architecture now supports catalog scale, marketing initiatives, and future system enhancements without requiring a platform rebuild.
The new platform runs faster, keeps inventory live, and makes B2B ordering and approvals smoother. The catalog is easier to use, and internal teams now trust the system's accuracy.
Why brands pick Redefine over a general Shopify Plus agency
Most agencies build Shopify stores. Redefine builds Shopify Plus programs. We activate every enterprise capability, integrate your existing systems, and hit a fixed timeline your CTO can hold us to. to.
Fixed 12-week delivery, in writing
Your delivery date is agreed before a line of code is written. No open-ended timelines, no "it depends on scope" retainer billing. Your launch date is real, not aspirational.l, not aspirational.
Checkout extensibility expertise in-house
Checkout UI extensions and Shopify Functions are complex. Most agencies hand them to contractors or skip them. Our in-house team builds and maintains them, so your Plus features ship with the store.
Enterprise resource planning and customer relationship management integration, not a bolt-on
Integration is not an afterthought here. We architect it during discovery, before development starts. Your ERP inventory, CRM data, and WMS routing go live at launch, not month four.
One dedicated project engineer, not a rotating team
Your engineer knows your catalog, systems, and edge cases from discovery through launch. No handoffs to juniors at sprint two. No account manager relaying messages to an offshore team you never meet.
Performance targets baked into the delivery spec
LCP under 2 seconds on mobile. CLS under 0.1. Core Web Vitals in the "Good" range. We confirm all three in QA before launch. Performance is a feature, not a cleanup task.
Full technical handover, not a GitHub zip
Our docs cover every custom component, integration map, Flow config, and Shopify Functions deployment. Your team or next partner can maintain the code without reverse-engineering week-three decisions.
Shopify Plus development FAQ
The questions operations leaders and chief technology officers ask before committing to a Shopify Plus development program.
Shopify Plus development programs range from $40,000 to $250,000 depending on scope: a standard theme build with checkout extensions sits at the lower end; a full headless build with multiple enterprise resource planning integrations, B2B channel, and Shopify Flow configuration sits at the higher end. We scope every program precisely and provide a fixed project price before any work begins.
Every migration includes a full data audit, SEO equity preservation, 301 redirect mapping, and a phased go-live plan. We target zero-downtime migrations with revenue continuity from day one.e target zero-downtime migrations with revenue continuity from day one of launch.
Our fixed timeline commitment is built on a precise discovery phase. If delay risk emerges during development due to factors within our control, we absorb the additional resource cost. If scope changes are requested by your team after discovery sign-off, we provide a clear change order with timeline and cost impact before any additional work is done.
Yes. We build headless storefronts using Shopify Hydrogen (React Router) for stores that require custom performance targets, multi-market rendering, or tightly controlled frontend architecture. Hydrogen adds complexity and development time compared to a theme build. We recommend it for stores where the performance or architectural requirements specifically justify the overhead, and advise against it when a well-optimized theme build would deliver the same outcome faster.
Every program includes 48-hour post-launch monitoring, a full technical handover package, and a documented handoff session with your internal team. Ongoing development support is available as a separate retainer engagement, scoped to your specific needs, so you only pay for what your team actually requires after launch. We do not bundle unnecessary maintenance retainers into the base project.
Your Shopify Plus development program starts with a scoped brief, not a sales call
Book a 30-minute discovery call. You describe your store, integrations, and Plus needs. Our Shopify Plus developers show how a 12-week program fits your build. You get a rough scope and timeline before any commitment.
Submit your brief → call within 48 hours → scoped proposal in 3 days → Sprint 1 within 1 week of sign-off
Your team spends about 3 to 4 hours a week: one sprint review, async feedback, and a final sign-off. We handle the rest.
We will review your workflow and send a scoped proposal within 3 business days.
