BigCommerce migration for multi-storefront and B2B brands

Part of

What you get

A live BigCommerce platform with storefronts, customer groups and price lists configured, data verified and integrations running.

Related solutions

Agent Governance and Evaluation

Guardrails, action logs and testing, so every agent acting for your brand can be checked and overruled.

B2B Buying Agents

Agents that handle quoting, approvals and reorders for trade accounts, inside the rules you already set.

AI Content Operations

Product copy, imagery and translations produced at catalog scale, with a review step before anything publishes.

AI Merchandising and Personalization

Ranking, recommendations and bundles that adapt to each shopper, tuned against margin and stock, not just clicks.

AI Shopping Assistants

An on-site assistant grounded in your own catalog and policies that answers questions and builds carts.

AI Product Data Enrichment

Product attributes, specs and feeds structured so AI agents and AI search describe your catalog accurately.

Commerce MCP Server Development

A Model Context Protocol server that exposes your catalog, inventory and orders to the assistants customers use.

Agent Payments Integration

Taking payment from AI agents safely, through signed AP2 payment mandates and delegated card tokens.

UCP and Agentic Checkout

Publishing the manifest and checkout endpoints that let AI agents build a cart and place an order on your store.

Deployment and Environment Management

Deployment, previews and edge delivery handled without managing infrastructure yourself.

Ecommerce Maintenance and Support

Platform updates, integration monitoring and incident response with a named team behind it.

Returns Management

Returns handled in a way that retains both the customer and the margin.

Reviews and Loyalty

Social proof and repeat purchase programs wired properly into the storefront.

Search and Merchandising

Onsite search and merchandising tuned to what actually converts for your catalog.

Headless CMS Implementation

Marketing publishing without waiting for a developer release window.

Lifecycle Marketing

Email and SMS programs that react to what a customer actually did on the store.

Accessibility and ADA Compliance

Storefronts that are usable by everyone, and defensible if you are ever challenged.

Error Monitoring

Catching the checkout and product page errors that quietly cost orders every day.

Site Speed Optimization

Page speed treated as a revenue metric, particularly on mobile where the gap is widest.

A/B Testing Programs

Tests designed to answer a question rather than to confirm a preference.

Conversion Rate Optimization

A running experiment program prioritized by expected revenue impact, not ease of build.

UI Design

Production ready interface design handed over in a form developers can build from directly.

Design Systems

A component library so the team ships consistently instead of redesigning every page.

Wireframing and Prototyping

Testable structure agreed before anyone writes production code.

Customer Journey Mapping

How customers actually move across channels, and exactly where the friction sits.

UX Design

Interface design grounded in the brand's own analytics rather than generic best practice.

Internationalization and Multi-market

Selling into several countries and currencies without a separate build for each.

Omnichannel and POS

One stock and customer record across the store, the website and events.

B2B Commerce

Account specific pricing, catalog visibility and approval workflows on the same platform as DTC.

Tax and Compliance

Sales tax and cross border compliance handled in the platform rather than by hand.

Payments and Subscriptions

Checkout, recurring billing and pay later configured for your basket size and markets.

OMS and Fulfilment Integration

Orders routed and fulfilled without anyone moving them between systems by hand.

ERP Integration

Finance, inventory and ecommerce agreeing on stock, orders and customers without retyping.

Catalog and Data Migration

Product, customer, subscription and order data moved, reconciled and verified.

Headless Replatforming

Replacing the front end while leaving the commerce engine where it already works.

WooCommerce to Shopify Migration

Moving off WooCommerce onto a platform that does not need constant maintenance.

Magento to Shopify Migration

Leaving Magento without losing order history, search equity or trading days.

BigCommerce Migration

Moving to BigCommerce where multi storefront and B2B pricing rules need to work natively.

Shopify Plus Migration

Moving to Shopify Plus with catalog, customers, subscriptions and search rankings intact.

Systems Architecture

Deciding which system owns which data before anything gets integrated.

Saleor Development

Production Saleor storefronts for brands that need direct control of their commerce API.

Shopify Plus Headless Builds

A custom front end on Shopify's Storefront API, with Shopify continuing to own checkout.

Headless Storefront Development

A storefront built as a real application, with the commerce engine sitting behind an API.

Composable Commerce Development

Commerce built from replaceable services rather than one platform trying to do everything.

Commerce Automation

Automating the manual handoffs between commerce, operations and marketing systems.

AI Agent Integration

Agents built into support, merchandising and internal operations, scoped to work that is worth automating.

AI Search Optimization

Being findable and citable inside the assistants where buyers increasingly start their research.

Agentic Commerce Readiness

Making the storefront readable and transactable by the AI agents that now shop on a customer's behalf.

Data Pipelines and Integration

Moving commerce, marketing and finance data between systems on a schedule you can trust.

Conversion Tracking and Attribution

Tracking that survives consent banners, ad blockers and a headless front end.

Analytics and Dashboarding

Dashboards that answer the standing questions without someone exporting a spreadsheet first.

GA4 Configuration

Analytics set up so the numbers reflect how the business actually makes money.

Build vs Buy Assessment

Deciding what to build custom and what to buy, with the real cost of each made explicit.

Tech Stack Consolidation

Reducing overlapping tools into a stack that costs less to run and is easier to change.

Fractional VP of Ecommerce

Senior ecommerce leadership on a recurring basis, owning the roadmap without a full time executive hire.

Ecommerce Audits

A straight read on what is holding the storefront back, across technology, experience and merchandising.

Platform Selection and Evaluation

An evidence based comparison of commerce platforms against the constraints your business is actually hitting.

Ecommerce Strategy and Roadmapping

Structured discovery that establishes what to build, in what order, on which platform, and what each decision is likely to cost.

BigCommerce tends to win platform decisions for a particular set of reasons. Brands need several storefronts on one back end, wholesale and retail pricing side by side, and an open API to connect the rest of the stack. Multi-storefront and B2B Edition cover much of that natively, which means less custom code to maintain.

A BigCommerce migration is the work of getting onto it cleanly. That covers mapping your catalog and customers to BigCommerce's model, rebuilding pricing rules, redirecting every indexed URL and reconnecting ERP, tax and fulfilment.

The parts that need the most care

Storefront structure. Deciding which brands, regions or channels become separate storefronts, and which products, prices and content each one shows.
B2B pricing. Customer groups, price lists, company accounts and quote workflows rebuilt so wholesale buyers see the right price on day one.
Catalog mapping. Options, modifiers, variants and custom fields translated from your current platform without losing detail.
Customer accounts. Retail customers and B2B companies, with their users, roles and addresses, imported and checked.
Search equity. URL mapping, 301 redirects and metadata so rankings carry across.

Theme or headless

BigCommerce runs its own Stencil themes and also works well headless. Some brands keep a theme to launch sooner. Others build a NextJS front end, often starting from Catalyst, BigCommerce's open source NextJS storefront. We recommend one based on how different your storefronts need to be and who will maintain them.

How we run it

Discovery comes first, with an inventory of data, integrations, apps and custom logic on your current platform. We then migrate in rounds and reconcile counts and samples against the source each time, so problems surface in testing rather than in a customer's account.

Cutover is timed around your trading calendar. A final delta of orders and customers runs at launch, and we monitor checkout, pricing, redirects and integrations closely afterwards. B2B pricing gets extra attention here, because a wrong price list is the kind of mistake a wholesale buyer remembers.

This work sits within our ecommerce replatforming service on BigCommerce. It often runs alongside B2B commerce and catalog and data migration work.