Multichannel pricing: How to calculate profitable prices for Amazon, eBay, and your own shop with Billbee

You know the feeling: orders are coming in, your stock is clearing out, but at the end of the month, there’s less in your account than you expected. If you’re an online retailer selling across multiple channels, revenue often isn't the problem—your margins are.

Pricing in multichannel retail is one of the biggest challenges in e-commerce. A price that is profitable in your own shop can quickly push you into the red on Amazon or eBay due to hidden fees. Manually adjusting prices for every single channel also costs you valuable time that you could be spending on actual growth. This is exactly where we come in: let’s look at how you can get your e-commerce pricing strategy under control and how Billbee can support you as a reliable partner.

Why is multichannel pricing so complex?

Anyone selling across multiple channels is tapping into huge opportunities. You reach more customers, diversify your risk, and increase your brand awareness. But with every new marketplace, the complexity behind the scenes grows.

The main problem? There is no such thing as a "one-size-fits-all" price anymore. Every sales channel has its own rules and cost structures:

• Amazon: In addition to the percentage-based referral fee, there are often FBA (Fulfillment by Amazon) costs for storage and shipping.
• eBay: Here, you have listing fees, final value fees, and sometimes separate costs for payment processing or promotional campaigns.
• Your own shop (e.g., Shopify, Shopware): While you don't pay marketplace fees, you bear the full costs for marketing (Google Ads, social media), hosting, and payment providers (like PayPal or Stripe).

If you use a flat price across all these, you’re either leaving money on the table in your own shop or, in the worst-case scenario, selling at a loss on marketplaces. If you don't calculate your numbers carefully here, you’re taking a massive financial risk.

Real-world e-commerce examples: Where margins often fall by the wayside

Many merchants struggle with these typical pain points every day:

• The Amazon loss-maker: You offer a bestseller for 15 euros across all platforms. It’s only when your accountant prepares the annual financial statements that you realize you’re losing 50 cents on every sale after accounting for increased Amazon FBA fees.
• The update trap: Your supplier raises their prices. You update the retail price in your Shopify store but forget to adjust it on eBay. The result: You spend days selling below cost.
• Chaos in product management: You use Excel spreadsheets to calculate marketplace fees . With hundreds of items, you completely lose track and end up spending hours on tedious copy-paste work.

The Billbee solution: Smart product management and automation in the background

If you charge a different price on every channel, you naturally manage those specific retail prices directly where the sale takes place—in your Amazon Seller Central, on eBay, or in your online shop’s backend. But what happens after that? This is exactly where Billbee comes in as your central hub to make e-commerce product management as easy as possible:

#1 Intelligently link products via SKU

To avoid chaos with varying prices, use consistent stock keeping units (SKUs) across all your channels. As soon as an order comes in, Billbee knows immediately: Aha, that’s item X from our inventory—regardless of whether it was sold in your own shop for €19.99 or on Amazon for €22.99. You always maintain a perfect overview of your product range.

#2 Order import with the exact sales price

You don’t have to worry about incorrect prices ending up in your accounting. (How to properly prepare your entire e-commerce accounting, we show you in this guide). Billbee automatically imports orders from all your connected marketplaces and shops, pulling in the exact price paid on the platform at the time of purchase. This way, you have all your actual revenue consolidated in one central location.

#3 Automating inventory synchronization and invoices

This is where you really save time: as soon as the more expensive Amazon item is purchased, Billbee automatically reduces the stock levels in your shop and on eBay. At the same time, the system uses automation rules to generate the invoice—with the correct price for the respective platform, the appropriate tax rates, and your own branding. You don't have to lift a finger.

Tips & best practices for your pricing strategy

To ensure you sell profitably in the long run, you should keep the following points in mind for your strategy:

• Watch out for "hidden" costs: Don't just calculate purchase and shipping costs. Don't forget the costs for returns, packaging materials, transaction fees (e.g., from PayPal), and a buffer for discount campaigns.
• Know your absolute price floor: Calculate the break-even point for every item. You must never drop below this limit, even during aggressive price wars.
• Use psychological pricing: A price of €24.95 often converts significantly better on marketplaces than €25.00. Test different price endings and analyze your sales figures.
• Legal compliance for unit pricing: Make sure you provide the correct unit price (e.g., price per 100g) on all platforms for items sold by weight, volume, or length. This protects you from expensive legal warnings.
• Regular margin checks: Marketplaces often change their fee structures (e.g., Amazon FBA costs). Check at least once a quarter whether your calculations per channel are still accurate and adjust your prices on the platforms accordingly. (Your margin is one of the most important e-commerce KPIs that you must constantly track).

Conclusion: Higher margins, less stress

Clean, channel-specific pricing for multichannel is the absolute cornerstone of your long-term success. If you blindly copy prices from your own shop to Amazon and eBay, you risk your profitability.

You set the strategic prices on the platforms – and Billbee takes care of everything else. With Billbee as your partner for automated inventory synchronization and order processing, you reduce technical complexity to a minimum. You gain back valuable hours and have the peace of mind that your stock levels and invoices are always 100% accurate.

Stop wasting time with manual inventory adjustments and invoicing chaos caused by varying prices. Take the next step for your business and let the system handle the tedious busywork. Test Billbee now for 30 days completely free and without obligation and discover how easy multichannel e-commerce can be!

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