Marketplace integrations that keep every channel in sync
List, sync and fulfill across Amazon, Walmart, eBay and more from one catalog, with inventory and orders that agree across every channel.
- Catalog, stock and order sync
- Oversell prevention
- Direct API or connector, your call
Test drive our developers. 3 guaranteed hours of free development work.
Hand us a real task and our senior engineers do the first 3 hours on us. No obligation to hire us, just a straight look at how we work.
- Review your integration
- Fix a sync bug
- Plan the data flow
- Check error handling
Systems we integrate with
The systems we integrate most often, grouped by what they do.
Marketplaces we integrate with
- Amazon
- eBay
Walmart
One source of truth, many places to sell
Marketplaces are not a copy of your store. Each has its own listing rules, its own order flow and its own rules about stock.
Your catalog
Products, prices, content
Integration layer
Map, check, queue
Marketplaces
Amazon, Walmart, eBay
Orders back
Into your order system
Stock updated
Every channel adjusts
Listings and stock levels go out. Orders come back and reduce stock everywhere, so the same unit is not sold twice.
On a marketplace, overselling does not just annoy a customer. It costs you standing
Marketplaces watch seller performance closely. Cancelled orders, late shipments and defects count against you, and poor numbers can limit your listings or your account.
That makes accurate stock the most important thing a marketplace integration does.
- 1
Stock sold in two places at once
A unit sells on Amazon while the store sells the last one too. Without shared stock, one order gets cancelled.
- 2
Delays between channels
If stock updates run every few hours, a popular item can oversell in the gap. The fix is faster updates and safety buffers.
- 3
Marketplace-held stock
Inventory held by a marketplace's own fulfillment is counted separately, and the integration must keep it from mixing with yours.
- 4
Orders without a home
Marketplace orders sitting in a separate dashboard get shipped late, or not tracked in your ERP at all.
Catalog, inventory and orders, each with its own traps
Inventory sync with a safety buffer
Stock updates flow to every channel, and you can hold back a few units per channel so a late sync does not mean an oversell.
Catalog and listing sync
Titles, images and attributes are pushed from one source. Each marketplace has its own required fields and category rules, so we map them per channel.
Order consolidation
Marketplace orders enter your normal order flow, so the warehouse and ERP see them like any other.
Channel pricing rules
Different prices or fee-aware pricing per marketplace, without editing every listing by hand.
Cancellations and returns
Changes made on the marketplace reach your systems, and returns put stock back.
The choices that prevent trouble later
Inventory
- Which system owns the stock number
- How much to hold back per channel
- How marketplace-fulfilled stock is tracked
- How often stock updates run
Catalog
- Which products go to which channel
- Required attributes and categories per channel
- Who approves listing changes
- How listing errors are reported
Orders
- Where marketplace orders are processed
- How tracking goes back to the channel
- How cancellations and returns are handled
- How duplicates are prevented
Selling on more than one channel?
Tell us which marketplaces you use and how you manage stock today. We will tell you where oversell risk sits and what a safe setup looks like.
Talk to usFrequently asked questions
Which marketplaces do you integrate with?
Amazon, Walmart and eBay are the most common. Tell us your marketplace mix and we will confirm the approach, since each has its own rules and API.
How do you prevent overselling across channels?
By keeping one stock number as the source, updating every channel quickly when it changes, and holding back a small buffer on each channel. Faster updates and a buffer together cover the gap between syncs.
Do marketplace orders come into our existing system?
Yes. They flow into your normal order process, so your warehouse, 3PL and ERP handle them like any other order, and tracking goes back to the marketplace.
Should we use a connector tool or a custom integration?
It depends on your volume and rules. A connector can suit a simple setup on a few channels. Custom is often more reliable with unusual pricing, bundles or high order volume. We will recommend one honestly.
What about stock held in a marketplace's own warehouses?
It is counted separately from your own stock. We make sure the integration tracks it as its own pool, so it is not double counted against what you hold.
What happens when a marketplace rejects a listing?
The integration reports the rejection and the reason, such as a missing attribute, so it can be fixed. A rejected listing should be visible to you, not just absent.
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