How do I prevent overselling when selling on Amazon or Bol?

By automatically synchronizing your stock between your fulfilment/ERP and all your sales channels. As soon as a sale is made somewhere, the stock on the other channels is updated, so you never sell something that is no longer in stock.

Can I link Amazon and Bol to my ERP and fulfilment at the same time?

Yes. Within one Connected Commerce landscape, you can link multiple marketplaces (such as Amazon and Bol) simultaneously to your ERP, fulfilment partner, and webshop. Different rules or fulfilment strategies may apply per channel.

What is the difference between a channel manager and an integration platform?

A channel manager (such as ChannelEngine or Channable) is strong in managing marketplace listings, prices, and content. An integration platform then connects that marketplace with your ERP, fulfilment, and WMS. They are often complementary: for example, KoneX links ChannelEngine to your fulfilment.

Does KoneX support Amazon FBA/FBM and fulfilment via a 3PL for Bol?

Yes. For Amazon, KoneX supports both FBA and FBM. For Bol, KoneX works via Fulfilment by Retailer (FBR): you ship via your own fulfilment partner or 3PL. In both cases, orders, stock, and shipping automatically align with your business processes.

Does the integration work automatically or in batches?

The connection processes mutations automatically: orders, stock, listings, and shipments are synchronized without manual work between your marketplace, ERP, and fulfilment. Where it is more efficient (for example, with large volumes), KoneX also supports batch processing.

What does it cost to link a marketplace with ERP and fulfilment?

That depends on the number of marketplaces, systems, and data flows. View the available licenses and pricing plans or schedule a call for a custom proposal.

Connecting Amazon or Bol to Your ERP and Fulfillment

Short answer: to sell on Amazon or Bol without manual work, you link the marketplace to your ERP (orders and administration) and to your fulfilment (stock and shipping). This can be done with a channel manager, a custom API connection, or an integration platform. The biggest challenge is not getting orders, but keeping your stock up to date across all your channels — so you don’t oversell.

A marketplace is rarely your only channel. Besides Amazon or Bol, you often have your own webshop, an ERP or accounting package, and a fulfilment partner or warehouse. Every new sales channel increases the chance of stock discrepancies, delayed orders, and errors — unless your systems talk to each other automatically.

Which data needs to flow?

Data	From	To	Why
Orders	Amazon / Bol	ERP + fulfilment	Automatic processing and invoicing
Inventory	Fulfilment / ERP	Amazon / Bol	Prevent overselling across all channels
Listings (products, prices)	ERP / PIM	Amazon / Bol	Consistent listings, manage once
Shipping & Track & Trace	Fulfillment	Amazon / Bol + customer	Current status for marketplace and customer

Return flows differ per marketplace. Amazon supports return information; at Bol, returns are currently not part of the KoneX connection. We therefore keep our pages consciously honest about what is and isn’t connected.

Options for linking your marketplace

Channel managers (ChannelEngine, Channable)

Strong on the marketplace side: listings, prices, content, and managing multiple marketplaces at once. What they do in terms of ERP and fulfilment orchestration varies per tool. In practice, a channel manager and an integration platform are often complementary: the channel manager handles the marketplace, the platform connects it with your ERP, fulfilment, and WMS. For example, KoneX also links ChannelEngine to your fulfilment.

Generic automation tools (Zapier, Make)

Useful for simple triggers, but they hit limits with stock sync across multiple channels, higher volumes, and the full order-to-cash process. Usually too limited for marketplace sales with multiple systems.

Custom API connection

Fully customized via the APIs of the marketplace, your ERP, and your fulfilment. Maximum flexibility, but with development and maintenance costs — especially since marketplace APIs change regularly.

An integration platform

You connect your marketplace, ERP, fulfilment, and WMS once to one platform that automatically orchestrates the data flows. Later, easily add a second marketplace, webshop, or fulfilment partner without rebuilding. This is the KoneX approach.

Approach	Strong in	Point of attention
Channel manager	Marketplace listings & pricing	ERP/fulfilment orchestration varies
Zapier / Make	Simple triggers	Limits with stock & volume
Custom API	Fully customized	Development + maintenance
Integration platform	Marketplace + ERP + fulfilment in one landscape	—

Amazon and Bol: what should you look out for?

Amazon – international, with both Fulfilment by Amazon (FBA) and Fulfilment by Merchant (FBM). KoneX supports both and links Amazon to your ERP, webshop, fulfilment partner, and WMS. See the Amazon Marketplace connection.
Bol – major in the Netherlands and Belgium. KoneX links Bol via Fulfilment by Retailer (FBR): you ship via your own fulfilment partner or 3PL. See Linking Bol with Fulfilment or the combination Bol + Exact Online + PostNL.

How do you prevent overselling?

Overselling occurs when your stock on one channel does not move with sales on another channel. The solution is one source of truth for your stock that automatically synchronizes with all your channels. With KoneX, stock mutations are automatically processed between fulfilment/ERP and your marketplaces; where it is more efficient (for example, with large volumes), KoneX also supports batch processing. This way, no channel sells something that is no longer there.

Are you unsure about the broader choice between individual connections and a platform? Read also: Individual connections or an integration platform?

Frequently Asked Questions

Want to know the best way to link Amazon or Bol to your ERP and fulfilment? Schedule a no-obligation consultation — we’ll think along with you honestly.

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