Multi-channel inventory management
for Amazon, Shopify & eBay.
Sync stock, pricing, and orders across every channel automatically — every 15 minutes. Stop overselling. Stop manual updates. Manage your whole catalog from one dashboard.
ChannelSync Master connects to Amazon Selling Partner API, Shopify Admin API, and eBay Developer APIs via standard OAuth — no developer account or third-party middleware required.
How does ChannelSync Master show your entire catalog?
View every product across Amazon, Shopify, and eBay side by side. Instantly identify what's synced, what's drifted, and what needs attention.
What features matter most for multi-channel sellers?
Every feature is designed to solve the real operational challenges of selling across multiple marketplaces.
How often does inventory sync between channels?
Define your master channel for pricing and inventory, and updates propagate automatically. Stock levels adjust across all platforms within minutes of a sale.
How does product matching work across channels?
Products with different SKUs across platforms? Our AI analyzes titles, model numbers, and descriptions to identify matches. Review confidence scores and approve with a single click.
Where do I see orders from every channel?
Every order from every channel in one unified feed. No more switching between seller portals to track what sold and where.
How is ChannelSync Master different from enterprise tools?
Most multi-channel solutions are designed for large warehouse operations. ChannelSync Master is built for independent sellers who need powerful tools without the complexity.
How does the platform recognize the same product across channels?
Standard tools rely on exact SKU matches. When your eBay listing says "SONY-XM5" and Shopify says "WH1000XM5-BLK," they can't connect them. Our AI reads titles, analyzes model numbers, and identifies the match automatically.
Do I keep control over every sync decision?
Every AI-suggested match includes a confidence score and detailed reasoning. Accept, reject, or manually link products yourself. Nothing syncs without your approval.
Can I create listings on every channel at once?
Expand to new channels effortlessly. Push a product from eBay to Shopify -- or vice versa -- with images, descriptions, and pricing carried over. eBay listings are auto-categorized using their Taxonomy API.
Is the platform easy to set up and use?
No lengthy onboarding calls or implementation consultants. Connect your accounts, let the system import your catalog, and start managing -- all within minutes.
How accurate is product matching across Amazon, Shopify, and eBay?
Inconsistent SKUs across platforms are the norm, not the exception. Whether your listings were created years apart or follow completely different naming conventions, our matching engine handles it.
The system compares titles, model numbers, and brand names, then delivers a confidence percentage with clear reasoning. Accept or reject each suggestion with one click, or manually link products when you already know the match.
What questions do sellers ask before connecting their first channel?
Everything sellers ask before connecting their first channel. See the step-by-step sync workflow or browse the full feature list.
How does multi-channel inventory sync work?
You pick one channel as the master for inventory and one as the master for pricing. ChannelSync Master polls each channel every 20 minutes (and reacts to webhooks from Shopify and eBay), then pushes updates to the other channels so stock levels and prices stay aligned.
Does it support Amazon, Shopify, and eBay together?
Yes. You can connect any combination of Amazon, Shopify, and eBay — you don't need all three to start. Products are matched across the connected channels and synced based on the rules you set.
How often does inventory sync between channels?
Auto-sync runs every 20 minutes around the clock. Sales on Shopify or eBay also trigger an immediate webhook-driven decrement, then propagate to the other channels so you don't oversell between cycles.
Can I push a Shopify product to eBay (or vice versa)?
Yes. ChannelSync Master can create a new eBay listing from a Shopify product (and the reverse), carrying over images, descriptions, and pricing. eBay listings are auto-categorized using eBay's Taxonomy API so the required item specifics come pre-filled.
Will it prevent overselling on Amazon when something sells on eBay?
Yes — that's the core use case. When an eBay sale fires its webhook, ChannelSync Master decrements the master inventory record and pushes the new stock level to Amazon and Shopify in the same cycle. You stop the double-sell scenario that triggers Amazon order defects.
How does AI product matching work when SKUs don't line up?
The matching engine reads titles, brand names, model numbers, UPC/EAN/MPN identifiers, and product images, then returns a confidence score and human-readable reasoning for each suggested match. You approve, reject, or manually link products yourself — nothing syncs without your sign-off.
Is there a free trial or free tier?
ChannelSync Master is currently in closed beta and beta participants get the full platform at no charge today. After public launch, beta members keep founding-member pricing locked in. Request access from the beta page.
Is it built for small sellers or enterprises?
It's built for independent and small multi-channel sellers — the kind who don't need an implementation consultant or a six-figure platform fee. Connect your accounts, match your products, and you're running in minutes, not months.
What happens if a channel's API goes down?
ChannelSync Master tracks per-channel sync status. If Amazon's SP-API or eBay's Trading API throws errors, the dashboard surfaces it with the error code and the sync retries on the next 20-minute cycle. Other channels keep syncing normally.
How is ChannelSync Master different from Sellbrite or Codisto?
Sellbrite is owned by GoDaddy and targets larger sellers; Codisto (Shopify Marketplace Connect) is Shopify-centric. ChannelSync Master is built for independent sellers running Amazon + Shopify + eBay together, with built-in AI matching for SKUs that don't line up across channels and a simple per-product master rule.
“Multi-channel sellers don't need another enterprise platform that takes three months to onboard. They need stock and prices to stay in sync between sales — automatically — so they stop overselling and stop reconciling spreadsheets at midnight.”
Currently in closed beta.
We're onboarding a select group of sellers to refine the platform before our public launch. Request access and we'll be in touch.
Request Beta Access