End-to-End Ecommerce Systems
Everything your business needs to sell, scale and operate online — seamlessly connected into one unified ecosystem.
Most ecommerce agencies build websites. StreamMarket builds complete ecommerce systems — the technology, integrations, workflows, automation, data flows and support layers that power your entire digital business.
StreamMarket’s end-to-end ecommerce solutions connect every part of your organisation: your website, CRM, StreamMarket ERP, EPOS, warehouse, stock, payments, analytics, customer service, and marketing tools. Whether you’re B2B, B2C or a hybrid brand, we create a fully integrated commerce ecosystem that delivers efficiency, accuracy and growth.
This is more than development.
This is the backbone of your digital business — designed, built and optimised for long-term success.
What Does “End-to-End Ecommerce” Actually Mean?
An end-to-end system is not a single platform — it is the entire engine your business runs on:
- How customers browse, shop and pay
- How orders flow into your warehouse
- How stock updates everywhere instantly
- How your CRM receives customer and order data
- How finance and operations receive accurate sales and inventory information
- How marketing targets the right audiences with the right data
- How your business makes decisions based on reliable reporting
Every tool works together as one integrated, automated ecosystem.
For businesses with complexity — multi-warehouse, multi-store, B2B/B2C hybrid, mobility, retail chains, wholesalers — this is the only sustainable way to scale.
Why Your Business Needs an
End-to-End Ecommerce System
An ERP is often the backbone of retail and ecommerce operations — but without proper integration, it becomes another disconnected system.
Integrating your ERP with your ecommerce platform gives you:
Unified Data Across All Systems
Your website, CRM, StreamMarket ERP, EPOS, warehouse and marketing tools share a single source of truth.
Real-Time Inventory & Stock Accuracy
No overselling. No manual updates. No errors.
Faster Order Fulfilment
Orders flow from website → StreamMarket ERP → warehouse → courier automatically.
Automated Workflows
Reduce manual tasks with automated emails, status updates, segmentation, pricing rules and more.
Better Customer Experiences
Accurate stock, faster delivery, seamless returns, personalised communication.
Higher Productivity & Lower Costs
Less admin. Fewer spreadsheets. Reduced operational friction.
Scalable Infrastructure
Grow into new markets, channels and warehouses without re-platforming.
A strong ecommerce system does not just support your business — it empowers it.
What’s Included in Our End-to-End Ecommerce Systems
We offer a comprehensive suite of EPOS integration solutions designed for retail and ecommerce businesses across the UK
We build every component needed for a complete and connected commerce ecosystem.
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Ecommerce Website (B2B, B2C or Hybrid)
Built on platforms such as Magento, Shopify, WooCommerce or headless architectures.
We design websites that deliver:
- Fast performance and modern UX
- Mobile-first shopping
- Secure checkout
- Personalised experiences
- High conversion rates
Perfect for businesses managing large catalogues or multi-location stock.
CRM Integration & Customer Data Unification
Connect your ecommerce storefront with your CRM to ensure every interaction becomes usable business data for sales, service and marketing.
This includes:
- Customer profiles and segmentation
- Order history and behaviour
- Lead-to-customer flows
- Customer support workflows
- Marketing automation triggers
StreamMarket ERP, Warehouse & Inventory Integration
StreamMarket ERP acts as the operational foundation for:
- Products and catalogues
- Inventory and stock control
- Pricing and customer rules
- Orders and returns
- Purchasing and operations workflows
- Reporting and operational visibility
We build workflows where products, stock, pricing, orders and returns sync automatically — improving accuracy and reducing manual admin.
If your business uses another ERP, we can scope and quote a custom integration based on your system and requirements.
EPOS Integration (In-Store + Online)
Connect your physical stores with your ecommerce operation:
- Multi-store stock sync
- Click & Collect workflows
- In-store returns for online purchases
- Unified promotions and pricing logic
- Customer and loyalty syncing
Order Management & Fulfilment Automation
We design workflows that ensure:
- Orders reach the warehouse instantly
- Stock reduces automatically
- Courier/shipping systems generate labels
- Customers receive real-time updates
Marketplaces & Multi-Channel Connectivity
Sell across multiple channels and keep everything unified through your ecommerce ecosystem:
- Marketplaces (Amazon, eBay, OnBuy)
- Shopping feeds (Google Shopping)
- Social commerce channels
Orders, stock and product data stay aligned across all channels.
Marketing & Personalisation Technology
We integrate tools to help you grow faster, with smarter targeting:
- Email automation
- SMS & WhatsApp tools
- Loyalty and rewards apps
- Product recommendations
- Personalisation engines
- Customer data platforms (where required)
Marketing becomes more measurable, more relevant and more scalable.
Reporting, Analytics & Business Intelligence
Get complete visibility across:
- Sales and revenue
- Channel performance
- Customer behaviour
- Stock and fulfilment
- Marketing ROI
- Operational performance
Connected data = better commercial decisions.
Payments, Tax & Compliance Infrastructure
We configure:
- VAT rules and tax logic
- Multi-currency (where needed)
- Payment providers (wallets, BNPL and card payments)
- Security best practices and checkout compliance
Connected data = better commercial decisions.
Platforms & Technologies We Use
Ecommerce Platforms
Magento Open Source / Adobe Commerce
Shopify & Shopify Plus
WooCommerce / WordPress
Custom & headless setups
Integration & Middleware
Direct API integrations
Middleware tools (as required for complex workflows)
Core Operational Systems
StreamMarket ERP
CRM, EPOS and warehouse tools
External ERP systems (available via custom-scoped integrations)
Benefits of a Fully Integrated Ecommerce System
Reduced operational costs
Automation replaces manual work.
Faster fulfilment & delivery
Optimised order routing and warehouse automation.
Improved stock accuracy
Inventory updated instantly across all channels.
Better customer experiences
Accurate stock, faster shipping, personalised communication.
Enhanced team productivity
Sales, customer service, warehouse and marketing teams work from the same data.
Meaningful insights
Unified reporting for smarter decisions.
Built for long-term scale
Ready for multiple stores, markets, currencies and warehouses.
Real-World Use Cases
Multi-Warehouse Retailer
Website + StreamMarket ERP + warehouse workflows connected → stock accuracy improves → fulfilment time reduces → overselling eliminated.
Hybrid B2B/B2C Brand
Single ecommerce backend running two experiences: B2C storefront for consumers + B2B portal with contract pricing and bulk orders.
Mobility Retailer
Showroom EPOS + ecommerce + warehouse connected → Click & Collect and in-store returns become seamless.
National Retail Chain
Multi-channel stock and order flows unified → better reporting, faster fulfilment and stronger customer experience. These are real operational transformations — not just new websites.
Our End-to-End Ecommerce Delivery Process
We follow a clear, structured process to ensure smooth delivery:
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Discovery & Strategy Roadmap
We map your business model, customer journeys, systems and long-term goals.
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Architecture & Experience Design
We design platforms, integrations, data flows, UX and customer journeys.
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Build & Implementation
Website development + system setup + StreamMarket ERP workflows + integrations.
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Data Migration
Products, customers, pricing, content and order structures.
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QA, Testing & Validation
We test every customer scenario, sync behaviour and workflow across systems.
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Launch & Continuous Optimisation
Monitoring, refinement, performance improvements and long-term support.
Why Brands Choose StreamMarket
- Experts in building connected ecommerce ecosystems Not just websites — full system architecture and automation.
- Deep integration expertise CRM, StreamMarket ERP, EPOS, warehouse, marketplaces, marketing — everything works together.
- A long-term partner Support, monitoring, enhancements and strategic guidance.
Your success is our focus — not just your deployment.
End-to-End Ecommerce Systems FAQs
What does “end-to-end ecommerce” include?
Can you integrate our existing systems?
Do you work with both B2B and B2C?
How long does an end-to-end system take to build?
Do you provide ongoing support?
Ready to Build a Complete
End-to-End Ecommerce System?
We’d love to help you build an ecommerce ecosystem that supports your business today — and scales for tomorrow.
Choose your next step:
- Start an Ecommerce Roadmap
- Request an End-to-End Systems Quote
- Speak with a Commerce Strategist
Or get in touch directly