An Enterprise Digital Transformation for Canada's Largest Electrical Distributor

3.2M
orders and invoices migrated in 28 hours
Sub-second
pricing lookups for 100K+ products across multiple regions
5
major systems unified (Shopify, P21 ERP, InRiver PIM, Auth0, Coveo)

About Guillevin

Guillevin is one of the largest electrical distributors in Canada, with over 100 locations spanning coast to coast. What sets Guillevin apart from its competitors is its decentralized model, which empowers the manager of each location to tailor the product offering and services to the specific needs of their region. But their digital experience wasn't keeping pace with their operational sophistication, and it was costing them.

This engagement was not a single-channel commerce project, but a full-scale enterprise digital transformation
- spanning platform architecture, data migration, identity, search, and user experience - designed to support Guillevin’s highly decentralized operating model.

Their Challenges

Guillevin’s digital platform had to serve three distinct audiences - guest browsers, B2C customers, and B2B power users - within a single enterprise ecosystem shaped by regional autonomy, complex data dependencies, and real-time operational constraints. The complexity was immense: prices, stock availability, and product catalogs varied by region, yet the site struggled to deliver personalized, accurate information to any of these groups effectively.

Their existing platform looked like a standard enterprise website, but beneath the surface, critical pain points were frustrating users daily. The search functionality couldn't handle the trade slang and product codes that professionals use in the field. Pages crawled when users tried to access invoices or check pricing, essential tasks for B2B customers working against deadlines. Product information was often incomplete or incorrect, making filtering nearly impossible.

Guillevin had attempted to address some issues, but the fundamental problems persisted. Their legacy system simply couldn't support the robust, modern experience their customers needed. They knew a complete migration to Shopify was necessary, but that migration would need to preserve data integrity across millions of records while simultaneously reimagining the entire user experience.

Industry

Electrical Distribution

Previous Platform

Optimizely

Products

Shopify, Teifi B2B Commerce Suite

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Our Solution

Teifi Digital led a full-scale digital transformation to modernize Guillevin’s enterprise commerce platform.

We approached this enterprise transformation with the rigor it demanded: an extensive discovery process that brought together design, development, and the client's stakeholders in close collaboration from day one.

Our teams conducted competitive analysis, user research through surveys and customer interviews, and, critically, an exhaustive technical discovery of Guillevin's systems, information architecture, and backend infrastructure. We didn't just listen to what Guillevin thought the problems were, we mapped the entire technical ecosystem to understand what was possible and where the real bottlenecks existed.

We emerged with a strategic plan to not just migrate to Shopify, but to fundamentally transform the Guillevin digital experience through sophisticated technical architecture and thoughtful user experience design.

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Data Migration at Scale

Migrated 1.5M orders and 1.7M invoices from legacy to Shopify in 28 hours - faster than projected - using an event-driven sync architecture that maintained complete data integrity across 3.2M objects with near-zero data loss, while the business continued operating at peak load.

Multi-System Integration

Orchestrated data flows across five major systems - Shopify, P21 ERP, InRiver PIM, Auth0, and Coveo search - through Teifi Bridge, a custom middleware layer built on TypeScript/Node.js with PostgreSQL, Redis, and BullMQ. The result: a unified API layer with event-driven processing that reduces integration complexity for all future enhancements.

Real-Time B2B Pricing

Delivered sub-second pricing lookups at checkout for 100,000+ products across multiple price zones and company locations. We integrated a live pricing API to P21 via Jitterbit, cached strategically with Redis, and served it through checkout extensions - with support for multi-location company switching and near-zero pricing errors.

Custom Enterprise Solutions

Extended Shopify's B2B capabilities with purpose-built solutions: Auth0 action hooks for identity and ERP sync, a bidirectional quote-to-order workflow between Shopify and P21, dynamic regional catalog filtering by location, and custom bundle handling that presents clean line items to customers while decomposing to individual SKUs for ERP fulfillment.

Our Shared Results

The result was a unified enterprise platform capable of supporting regional autonomy, complex pricing models, and high-volume transactional workflows at scale.

  • 3.2 million orders and invoices migrated in 28 hours with near-zero data loss.
  • Sub-second pricing lookups for 100K+ products across multiple regions and price zones.
  • Near-zero pricing errors through real-time ERP integration.
  • Unified architecture supporting seamless data flow between 5 major systems (Shopify, P21 ERP, InRiver PIM, Auth0, Coveo).
  • Scalable design system that enables rapid adaptation as business needs evolve across 100+ locations.
  • Enhanced discoverability of critical B2B features like Quick Order and Job Lists, previously hidden despite user demand.

Beyond the numbers, this project fundamentally transformed how Guillevin serves its customers digitally. The new platform doesn't just look better, it works better, matching the sophistication of Guillevin's operations with an experience that respects the expertise and time constraints of electrical professionals. The modular, reusable architecture we built has become valuable intellectual property, accelerating future B2B projects for other clients.

Guillevin's transformation was built on Teifi's B2B Commerce Suite -  a proven framework for launching complex B2B commerce on Shopify.

Book a demo today.