EPOS Integration Services in the UK
Connect your in-store EPOS with your online store for real-time stock, smarter operations and seamless customer experiences.
Retail is no longer split between the physical store and the online shop—your customers expect everything to work together. At StreamMarket, we help UK businesses integrate their EPOS system with their ecommerce platform, CRM, ERP, warehouse tools and marketing systems so every channel operates as one.
Whether you run mobility stores, a fashion retail chain, a multi-store operation, or a growing ecommerce brand with a showroom, EPOS integration ensures accurate stock, faster fulfilment, unified customer data and an effortless omnichannel experience.
If you’re looking for a friendly team who explains things clearly and delivers reliable integrations, you’re in the right place.
What Is EPOS Integration?
EPOS integration connects your physical store’s electronic point-of-sale (EPOS) system with your online shop and other business systems. This allows:
- Real-time inventory synchronisation
- Automatic order updates
- Unified customer profiles
- Shared product catalogue
- Click & Collect workflows
- In-store + online returns handling
- Multi-store stock visibility
No more manual updates. No more stock errors. No more disappointed customers.
EPOS integration ensures your business operates as one unified retail system, regardless of how or where customers buy.
Why EPOS Integration Matters
EPOS integration is essential for modern retailers, mobility stores, and omnichannel businesses. Here’s why:
Real-time Stock Accuracy
When a product sells in-store, the website updates instantly—and vice versa.
Prevent Overselling
No more "out of stock" cancellations or negative customer experiences.
Unified Customer Data
One system for loyalty, purchase history, support and marketing.
Fast Click & Collect
Online orders route instantly to the store for fast preparation.
Easier Returns & Exchanges
Return online → process in-store seamlessly.
Multi-store Inventory Visibility
See availability by location, ideal for mobility stores and large retailers.
Multi-store Inventory Visibility
See availability by location, ideal for mobility stores and large retailers.
Better Customer Experience
Customers get accurate stock, faster service and consistent pricing. Put simply—EPOS integration helps your business run smoother and sell smarter.
Our EPOS Integration Services
We offer a comprehensive suite of EPOS integration solutions designed for retail and ecommerce businesses across the UK.
EPOS ↔ Ecommerce Integration
Connect your EPOS system with Shopify, Magento, WooCommerce or your custom ecommerce store.
We sync:
- Products & variants
- Prices, taxes & promotions
- Stock levels (real-time)
- Orders & fulfilment status
- Returns & refunds
- Customer details
- Gift cards, vouchers and discount codes
Your online and in-store systems finally communicate flawlessly.
Multi-Store & Multi-Warehouse Stock Sync
For retailers with multiple locations, we ensure every store sees:
- Live stock levels
- Transfer stock
- Reserved stock
- Fulfilment allocation
- Store-by-store product availability
Perfect for mobility retailers, fashion shops, and lifestyle chains.
Omnichannel Workflows (Click & Collect, Reserve Online, Buy In-Store)
We enable:
- Click & Collect
- Reserve Online, Pay In-Store
- Ship-from-Store
- Return Online, Refund In-Store
Your physical stores become part of your ecommerce fulfilment engine.
Customer & Loyalty Sync
We unify customer data across channels:
- Loyalty points
- Reward balances
- Purchase history
- Service history (mobility sector)
- Email & SMS marketing preferences
Better customer insights mean better marketing and support.
Product & Pricing Sync
Manage everything in one place:
- Product titles & descriptions
- SKU & barcode mapping
- Category & collection mapping
- Dynamic pricing
Your physical stores become part of your ecommerce fulfilment engine.
Ongoing Support, Monitoring & Expansion
We don’t disappear after launch.
We offer:
- Error log monitoring
- Sync health checks
- System updates
- Multi-store expansion
- New workflows & automations
- Continuous optimisation
Your integration grows as your business does.
Real-World Use Cases
In-store purchase → online stock updates instantly
- A mobility scooter sells in-store
- online stock adjusts immediately
- no overselling
Customer returns online order in-store
- EPOS processes it
- ecommerce refunds customer
- ERP updates accounting
Click & Collect Automation
- Order placed online
- EPOS alerts store staff
- order ready in minutes
Multi-store stock visibility
- Customers see which store has an item available today
- higher footfall and conversions
Loyalty points synced everywhere
- Earn online
- redeem in-store—fully integrated
Industry
Industries We Serve
We tailor every integration to match your sector’s unique processes.
Mobility Retailers
Multi-store stock sync VAT-exempt rules Large-item inventory handling Click & Collect for mobility aids
Fashion & Retail Chains
Variants-heavy catalogues Fast-moving stock In-store & online returns
Electronics & Home Goods
Complex inventory Warranty workflows
Wholesale + Retail Hybrid Businesses
Trade pricing Unified stock B2B + B2C operations
Lifestyle, Beauty & Sports Retailers
Promotions Loyalty Multi-store fulfilment
Your EPOS integration is tailored to your sector’s needs.
Our EPOS Integration Process
We follow a clear, structured process to ensure smooth delivery:
-
Discovery & Workflow Planning
We analyse your EPOS, ecommerce platform, stock logic, stores and business goals.
-
Data Mapping & Architecture
We map products, SKUs, pricing, stock logic, fulfilment flows and customer data.
-
Development & API Integration
We connect your EPOS to your ecommerce, ERP, CRM or warehouse systems.
-
Testing & Validation
We simulate real transactions to test every sync scenario.
-
Rollout & Staff Training
Smooth launch with clear guidance for in-store teams.
-
Monitoring & Ongoing Support
We ensure everything continues running perfectly as your business grows.
Why UK Retailers
Choose StreamMarket
- The Team with deep retail + ecommerce knowledge
- Experts in Shopify, Magento, WooCommerce & custom platforms
- Experienced in EPOS, ERP & CRM ecosystems
- Friendly communication with clear explanations
- Strong record in mobility, retail and multi-store setups
- Custom workflows, not cookie-cutter solutions
- Fast response times and ongoing support
- Built for long-term stability and scalability
We don’t just integrate—we improve how your entire business operates.
EPOS Integration FAQs
Which EPOS systems can you integrate?
Does EPOS integration work for multi-store retailers?
Can I sync loyalty points and customer data?
Will Click & Collect work more smoothly?
Is EPOS integration real-time?
Do you provide long-term support?
Ready to Connect Your EPOS
with Your Online Store?
We’d love to help you build a seamless, unified retail experience across all your channels.
Choose your next step:
- Integrate My EPOS System
- Request an Omnichannel Retail Audit
- Speak with a Retail Integration Expert
Or get in touch directly