Your storefront
runs the front.
Ecommerce integration runs
the business behind it.
Custom ecommerce integration that connects Shopify Plus, BigCommerce, and headless storefronts to your ERP, customer relationship management system, 3PL, marketing automation, and analytics. Every order, inventory record, and customer event flows where it needs to go, automatically.
Pricing Signal
Submit brief → call within 48 hours → platform brief in 3 days → build starts within 1 week of sign-off
What a disconnected ecommerce stack costs you every day
Each row below is a real operational problem that ecommerce integration solves. The left is what you live with today. The right is what you get after a Redefine build.
The integration stack depends on your storefront. Pick yours.
Every platform has different API surfaces, rate limits, and webhook patterns. Select your commerce platform and see exactly what integration looks like for your stack.
The integration stack every growing Shopify Plus brand needs
Shopify Plus exposes a robust REST and GraphQL API surface. We build integrations for inventory sync, order push-back to ERP, Klaviyo event pipelines, and 3PL dispatch, all against Shopify's webhook and bulk operations layer.
Turn BigCommerce into your command center for multi-channel commerce
BigCommerce's open API architecture makes it ideal for complex multi-marketplace integration. We build custom endpoints for marketplace order ingestion, dropshipping automation, inventory centralization, and analytics feeds.
Build the integration layer your composable stack actually needs
Headless commerce stacks have no single source of truth. We design custom API endpoints, server-side event pipelines, and unified product catalog layers that sit between your frontend and every connected backend system.
Four ecommerce integration outcomes every Redefine build delivers
ERP prices and stock counts live on your storefront. Always.
Your ERP is the source of truth for inventory and pricing. We push changes to your Shopify or BigCommerce storefront in real time or on a configurable cycle. No manual exports. No batch files. No overselling. Directly relevant to our Dynamics ecommerce integration work.
Orders go to your 3PL and ERP the moment they are placed.
A Shopify or BigCommerce order triggers a chain: ERP creates the sales order, 3PL receives the pick request, customer receives the tracking update, and Klaviyo fires the shipped flow. No human in the middle. Every link in the chain is automated and monitored.
Klaviyo flows trigger from real commerce events, not stale data.
We route ecommerce events through a server-side pipeline to Klaviyo. Every checkout, product view, abandoned cart, and purchase fires reliably, regardless of browser or ad blockers. Your segments are built from real purchase history, not last week's export.
Finance works from live ecommerce revenue, not Monday's export.
We build a unified data layer pulling from your storefront, ERP, and marketing tools into Power BI or your analytics platform. Revenue, margin, inventory, and customer lifetime value visible in real time. No more waiting for reports that are already outdated by the time they arrive.
Half Price Drapes: Shopify, Dynamics 365, Klaviyo, and Power BI, all connected. $70M in annual revenue.
Shopify, Dynamics 365 ERP, Klaviyo, and business intelligence tools operating as four separate silos. No shared data. Finance worked from weekly spreadsheet summaries. Orders reconciled manually.
Multi-channel inventory mismatches caused overselling. Customer data siloed in each platform prevented cohesive marketing. Real-time revenue insight was impossible.
Manual processes capped operational scale. Adding a new sales channel meant another manual feed. The business could not grow without growing the headcount to manage it.
Annual ecommerce revenue following the Shopify upgrade, Dynamics 365 ERP integration, Power BI analytics layer, and Klaviyo implementation.
Integrated analytics improved operational efficiency and decision-making through real-time insights. Inventory management and customer experience improved across all sales channels. Automated ecommerce systems unlocked scalable growth without headcount growth.
Your storefront as the commerce data origin
Every order event, inventory change, and customer action from your storefront triggers synchronized updates across every connected system through our integration layer.
What separates a Redefine ecommerce integration company from a typical build
Ecommerce integration consulting: what you need to know
We work primarily with Shopify Plus, BigCommerce, and custom headless storefronts. We also integrate Magento 2 and legacy platform builds via REST API, webhooks, or flat-file bridges. See our API integration services for endpoint-specific builds and our ERP integration services for the backend side of ecommerce integration.
A single storefront-to-ERP or storefront-to-3PL endpoint typically goes live in 12 to 18 days from signed brief. Full multi-system builds connecting your ecommerce store to ERP, customer relationship management, marketing automation, and business intelligence run 6 to 12 weeks depending on source system complexity and data volume.
Yes. Single ecommerce endpoints start from $3,200 fixed-price. Full stack builds connecting your storefront to ERP, customer relationship management, 3PL, and business intelligence start from $14,000. Architecture audits are $800 and credited toward any build. Time-and-materials retainers are available for ongoing maintenance.
Yes. Headless builds are our most complex ecommerce integration work. We design custom API endpoints, server-side event pipelines, and unified product catalog layers that sit between your frontend and all connected backend systems. Pricing starts from $6,400 for headless integration builds.
Every integration we build includes schema drift detection and automated alerting. If a Shopify or BigCommerce API change affects your integration, we alert before data starts failing silently. The 30-day hypercare period and optional managed retainers keep everything stable long-term. We also recommend periodic integration audits after major platform version upgrades.
Is this the right ecommerce integration engagement?
Not sure? Tell us your situation and we will be straight with you. We turn away projects that do not fit.
Good fit
- You run Shopify Plus, BigCommerce, or a headless storefront and need it connected to ERP, customer relationship management, or 3PL.
- Your team manually exports, imports, or reconciles data between your storefront and other systems.
- You want a fixed scope, a fixed price, and a go-live date you can plan around.
- You need custom transformation logic, B2B pricing rules, or approval workflows as part of the integration.
- You are scaling into multiple sales channels and need unified inventory and order management.
Not the right fit
- Your storefront already has native app integrations that work reliably for your current volume.
- You are still evaluating which ecommerce platform to launch on and have not chosen yet.
- You need an agency to build and run your storefront itself, not just the integration layer behind it.
- You want open-ended staff augmentation with no defined deliverables or go-live commitment.
Not sure? Tell us your situation and we will be straight with you.
Book A Discovery Workshop
Tell us about your storefront and what needs to connect behind it. We respond within 48 hours with a call slot and a platform-specific integration brief.
Call within 48 hours → platform brief in 3 days → build starts within 1 week of sign-off
Your team's time across a full ecommerce integration build is typically 2 to 3 hours per week: one schema review, async feedback on data contracts, and a final quality assurance sign-off on the first live sync. We handle everything else.
Brief received
We will review your storefront and integration requirements and send a scoped platform brief within 3 business days.
Ready to connect your storefront to everything behind it?
Go from first conversation to your first live ecommerce integration endpoint in under three weeks. Start with the platform audit and see what is possible.
No commitment. No pitch.
Submit brief → call within 48 hours → platform brief in 3 days → Sprint 1 within 1 week of sign-off