Sell on Marketplaces
Expand your reach across Amazon, eBay and more — without losing control.
Marketplaces are where customers already shop.
But selling on marketplaces without the right systems quickly creates chaos — overselling, pricing conflicts, poor reporting and operational strain.
At StreamMarket, we help ecommerce brands sell on marketplaces as part of a connected, controlled commerce ecosystem. We don’t treat marketplaces as isolated sales channels. We integrate them into your ecommerce platform, operations and reporting — ensuring stock accuracy, order efficiency and scalable growth.
This is marketplace selling done properly.
What Selling on Marketplaces Really Involves
Selling on marketplaces is not just about uploading products.
True marketplace selling requires:
- Centralised stock control
- Consistent pricing logic
- Automated order flow
- Clear profitability reporting
- Operational alignment with fulfilment and returns
Without integration, marketplaces become disconnected channels that create risk instead of growth.
That’s why marketplace selling works best when built as part of End-to-End Ecommerce Systems.
Why Marketplaces Are Powerful — and Risky Without Control
The upside
Marketplaces offer:
- Instant access to high-intent shoppers
- Faster route to new customers
- Increased brand visibility
- Incremental revenue growth
The risks
Without proper systems:
- Stock oversells across channels
- Pricing becomes inconsistent
- Margins erode
- Orders require manual handling
- Reporting becomes fragmented
StreamMarket’s approach ensures you gain the upside — without the downside.
Marketplaces We Enable
We support selling across leading marketplaces, including:
- Amazon
- eBay
- OnBuy
- Google Shopping
- Social commerce platforms
Marketplaces are enabled strategically, based on your catalogue, margins and operational readiness — not as a one-size-fits-all solution.
Centralised Stock, Pricing & Order Control
The foundation of successful marketplace selling is control.
We implement systems that ensure:
- Real-time stock synchronisation across all channels
- Unified pricing logic with channel-specific rules
- Automated order routing to fulfilment or warehouse
- Centralised returns and refunds handling
This is essential for maintaining accuracy and scale, especially when supported by Global Stock Management and Order & Fulfilment Solutions.
Marketplace Integration Architecture
We design marketplace integrations with a clear system hierarchy:
- Your ecommerce platform acts as the commercial hub
- Operations are driven by ERP and fulfilment workflows
- Marketplaces receive accurate, real-time data via APIs
This architecture ensures:
- Stock is never oversold
- Orders flow automatically
- Data remains consistent across systems
All integrations are delivered through API & Third-Party Integrations, ensuring stability and scalability.
Marketplace Reporting & Profitability
Visibility across channels is critical.
We enable reporting that shows:
- Sales performance by marketplace
- Margin and profitability per channel
- Product-level performance
- Returns and fulfilment impact
- Channel comparisons over time
This insight is delivered through Advanced Reporting, helping you decide which marketplaces to scale — and which to optimise or exit.
Marketplace Selling for Scale & Complexity
Marketplace selling becomes more complex as businesses grow.
We support:
- Multi-brand and Multi-Store Ecommerce environments
- B2B & B2C hybrid businesses
- Mobility and specialist retail
- Large catalogues with complex pricing rules
Marketplace selling is aligned with your broader B2B & B2C Website Development strategy — not treated as a side project.
Our Marketplace Enablement Process
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1. Marketplace Strategy & Readiness
Assessing catalogue suitability, margins and operational impact.
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2. Product & Data Mapping
Mapping products, pricing, stock rules and attributes.
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3. Integration Setup
Connecting marketplaces to ecommerce and operations via APIs.
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4. Testing & Validation
Stock sync, order flow, pricing logic and edge cases.
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5. Go-Live & Optimisation
Monitoring performance, refining rules and improving efficiency.
Marketplaces are launched in a controlled, scalable way — not rushed.
What You Get from Marketplace Selling with StreamMarket
- Fully integrated marketplace setup
- Centralised stock and pricing control
- Automated order processing
- Reduced operational overhead
- Clear channel-level reporting
- Scalable multi-channel infrastructure
- UX documentation for development
Marketplace selling becomes a growth channel — not an operational burden.
Why Choose StreamMarket
for Marketplace Selling
- Systems-first marketplace strategy
- Deep integration expertise
- ERP-aware operations and stock control
- Marketplace selling aligned with ecommerce strategy
- Scalable architecture for long-term growth
- Ongoing optimisation and support
We help you sell everywhere — without losing control anywhere.
Sell on Marketplaces FAQs
Can we control pricing per marketplace?
Is stock synced in real-time?
Can marketplaces work alongside B2B sales?
Does this scale as we grow?
Do you provide ongoing support?
Ready to Expand Your Sales
Across Marketplaces?
If you want to grow revenue through marketplaces without operational chaos, StreamMarket can help you build a controlled, scalable multi-channel strategy.
Next steps:
- Start Marketplace Integration
- Book a Multi-Channel Strategy Call
- Request a Marketplace Enablement Plan
Or get in touch directly