The Multichannel Ecommerce Guide for Business Growth

Multichannel Ecommerce: A Comprehensive Guide to Selling More Online

As a business leader responsible for driving revenue growth, are you exploring opportunities to increase online sales? Multichannel ecommerce is a popular way to expand your market by adding more sales channels while minimizing risk, operational costs, and complexity.

This guide provides a comprehensive overview of multichannel ecommerce to help you choose the best growth strategy for your business.

If you're mainly here to see how Descartes helps ecommerce businesses sell more online without operational chaos, here's a video overview.

For a deeper dive on all things multichannel ecommerce, keep reading.

Sell More ONline

Table of contents

  1. What is multichannel ecommerce?
  2. How to sell on multiple marketplaces
  3. How does Descartes support multichannel ecommerce growth?
  4. Key takeaways

What is multichannel ecommerce?

Multichannel ecommerce means selling products online across multiple platforms, such as Amazon, Walmart, Shopify, eBay, and your own website. Sellers typically add online sales channels as a low-cost way to expand revenue potential by reaching new markets.

In multichannel selling, each sales channel can operate independently from an inventory management, order fulfillment, and customer data standpoint. However, this may lead to operational challenges, including overselling inventory and missing delivery deadlines.

Many sellers overcome these challenges by implementing ecommerce operations software. By connecting all platforms to a central hub, businesses can streamline workflows, reduce errors, and increase efficiency.

SHow Me How

Advantages of selling on multiple marketplaces

Adding more sales channels is a low-cost way to give your business more reach, more revenue potential, greater agility, and less risk. Benefits of multichannel selling include:

Let’s take a closer look at each advantage.

Expand revenue by reaching more domestic and international customers

Global ecommerce represents a sizeable and growing market opportunity. According to statista.com, “Revenue in the ecommerce market is projected to reach US$3.66tn in 2025. Revenue is expected to show an annual growth rate (CAGR 2025-2030) of 6.29%, resulting in a projected market volume of US$4.96tn by 2030.”

There are over 150 ecommerce marketplaces worldwide, “[Each] with more than one million monthly visits, [selling] new physical products to end consumers. It means there are no B2B marketplaces and marketplaces of used items,” according to cs-cart.com.

See 150+ US-focused sales channel integrations

Low barrier to entry and low cost

To sell on a marketplace, such as Amazon, eBay, Walmart, or Etsy, you can create a seller account and list your products. Marketplaces typically charge fees, which may include subscription, listing, or transaction fees. These vary by platform, with listing fees ranging from $0 to $0.99 per listing for popular marketplaces.

Learn more about marketplace fees for Amazon, eBay, Walmart, and Etsy

Less risk by diversifying channels

Selling on a single channel can leave you vulnerable to cyberattacks, legal action, and consumer backlash (e.g., the Target boycott in 2025). Also, ecommerce sellers may deal with platform fee increases, sudden policy changes, and increasingly complex service level agreements.

By selling on multiple channels, you lessen the risk to your business if one or more of your sales channels experiences problems. Establishing a diverse base insulates your business and helps minimize potential losses due to marketplace volatility.

Test effectiveness of various sales channels

Which sales channels will bring your business the most return on investment (ROI)? Multichannel sellers can easily test the effectiveness of new channels by leveraging existing product listings on more platforms.

The secret to testing multiple new channels is multichannel listing management software. You can use it to sync product listings and add channels from a central hub. Look for software with reporting and analytics tools to evaluate which channels perform the best.

Show Me How

Increase agility to stay on top of shopping trends

Ecommerce continuously evolves, and so does buying behavior. In 2018, who would have thought that by 2025, “... U.S. social commerce sales are expected to surpass $84 billion, driven largely by TikTok’s influence,” according to Firework.com.

Consider expanding your sales channel mix to include at least one trending platform. Depending on your industry, your target market may be significantly shifting where they shop. Stay agile, pay attention to trends, and test fast-growing channels.

Learn more about selling on TikTok Shop

Problems with multichannel ecommerce

Selling on multiple sites adds complexity. Both new and existing sales channels require attention, and many new multichannel sellers struggle to run efficient operations. Common problems include:

The good news is that these problems can all be solved with integrated ecommerce operations software.

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What’s the difference between multichannel and omnichannel ecommerce?

The main difference between omnichannel and multichannel ecommerce is the connectedness of the customer journey across sales channels. In multichannel ecommerce, customers’ online data and activities are not leveraged to enhance offline shopping experiences. Listings can be customized per channel for unique experiences.

In contrast, omnichannel ecommerce personalizes and unifies the customer journey across all sales channels. It uses data from multiple online and offline touchpoints to build a cohesive customer experience everywhere your target buyer shops.

Learn more about omnichannel vs. multichannel ecommerce

Who should use a multichannel strategy, not omnichannel?

A multichannel marketing strategy is better than an omnichannel approach for ecommerce businesses that want to sell across multiple online platforms and reach more customers without building an interconnected journey.

These types of businesses may include:

Learn more about each type in the Omnichannel vs. Multichannel Guide

Multichannel management for listings

See more tips for managing multichannel listings

Multichannel inventory, fulfillment, and shipping

Tools for multichannel inventory management

Inventory control is crucial for successful multichannel ecommerce at scale. To prevent overselling and avoid disappointing customers, sellers must always ensure accurate, up-to-date inventory levels on all sales channels. Here are the tools to achieve this goal:

See the Top 10 Tips for Multichannel Inventory Management

Best multichannel ecommerce software for 2026

Top 3 multichannel ecommerce sales platforms

Adobe Commerce, previously known as Magento, BigCommerce, and Shopify are the top ecommerce sales platforms for multichannel sellers to implement in 2026. Each solution enables businesses to not only build and operate their own websites, but also manage other sales channels, such as marketplaces, social media shops, and brick-and-mortar stores.

Best multichannel ecommerce operations software

These platforms each provide an all-in-one solution with sales channel integrations, inventory, order, and shipping management capabilities. Some also offer advanced warehouse, purchasing, and inventory management tools.

See how Descartes Sellercloud compares to Cin7, Extensiv, Sellbrite, and Linnworks

Multichannel listing and product information management (PIM) software

See more options for the best multichannel listing software

Top 5 multichannel inventory management systems

See an example of ecommerce inventory software for multichannel sellers

5 top warehouse management systems for multichannel sellers

See an example of a warehouse management system for multichannel sellers

Best shipping software for multichannel ecommerce

See an example of multichannel shipping software

How to sell on multiple marketplaces

Anyone can sell on multiple marketplaces. The real question is, “How do I successfully sell on multiple marketplaces?” In other words, “What’s the best way to add more sales channels, market my products, and handle fulfillment for growing order volumes while controlling operational costs?”

What’s the best way to add more sales channels?

For small startup businesses, the easiest way to add more sales channels is to sign up for a marketplace like Amazon, Etsy, or Walmart. It's low-cost, and new sellers can typically manage orders and shipping with in-platform tools or multi-carrier shipping software, such as Descartes ShipRush.

Fast-growing small to mid-sized businesses should consider using an all-in-one ecommerce operations platform, such as Descartes Sellercloud, to add more marketplaces. This method is highly scalable and supports ongoing growth while reducing the complexity of multichannel management.

Small startup businesses – add a marketplace

How to add a new sales channel:

When to upgrade to a multichannel inventory management system (IMS):

find the right ims for your business

High-growth small to mid-sized business – centralized multichannel management

How to add new sales channels:

  1. Conduct market research: Which marketplaces and shopping carts are your competitors using? Where does your target market shop?

  2. Research new sales channels: How much will each one cost? What are the marketplace requirements?  What kind of results can you expect? What else do you need to get started?

  3. Audit existing systems: List pros and cons of your existing inventory management system (IMS), shipping software, order management system (OMS), and warehouse management system (WMS). Can they scale without breaking? Is it time to upgrade?

  4. Test existing order fulfillment workflow: Identify bottlenecks, troubleshoot, upgrade software and hardware, and prepare warehouse operations for scale.

  5. Centralize catalog and listing management: Implement a product information management (PIM) system that connects to your existing tech stack, or upgrade to an all-in-one ecommerce operations platform. Control omnichannel listings from a central hub.

  6. Sign up for new seller accounts: Create accounts on new platforms or marketplaces.

  7. Connect new sales channels: Use the pre-built integrations to link your new sales channels to your PIM system or all-in-one ecommerce operations platform.

  8. Sync listings and inventory: Sync centralized product information and available inventory with your new sales channels by toggling them on within your catalog management module.

  9. Sell everywhere: Your product listings will appear on all the sales channels you have connected to the PIM system. Orders will flow into your centralized order management system for processing.

  10. Fulfill orders and update inventory: Use your upgraded tech stack or all-in-one ecommerce operations platform to receive, process, fulfill, and ship orders while automatically updating available inventory across sales channels.

  11. Automatically replenish stock: Set up automation rules to control inventory and automatically send purchase orders to suppliers when stock levels run low.

When to upgrade to an all-in-one ecommerce operations platform :

See The Upgrade

What do sellers typically overlook when adding sales channels?

When adding ecommerce sales channels, businesses often overlook key factors such as operational readiness, channel-specific compliance, margin erosion and cost-to-serve, system integration and data flow, and strategic misalignment.

Let’s take a closer look at these common pitfalls and how to avoid them.

Operational Readiness

Can your ecommerce operations handle the added complexity and order volume that come with additional sales channels? If not, how can you prepare?

Common pitfalls:

How to avoid them:

Ready to achieve operational readiness?

Show Me How

Channel-Specific Compliance

What are the service level agreements (SLAs) and specific seller requirements for each sales channel? Are you prepared to meet them?

Common pitfalls:

How to avoid them:

Ready to see a PIM system in action?

Request a Demo

Margin Erosion and Cost-to-Serve

How much will it cost to sell on each channel? Have you considered all the factors that will impact costs?

Common pitfalls:

How to avoid them:

System Integration, Scalability, and Data Flow

Will the new sales channels connect to your existing systems? How will data flow between programs? Can your operations scale with growing complexity and order volumes?

Common pitfalls:

How to avoid them:

Ready to see fully integrated, scalable solutions?

Request a Demo

Strategic Misalignment

Which sales channels does your target market use? Are you partnering with the right companies to serve your customers? Can your customer support team handle requests in a timely manner?

Common pitfalls:

How to avoid them:

How do I keep listings and product information updated on all channels?

Use a centralized product information management (PIM) system, such as Descartes Sellercloud, to keep listings and product information updated on all sales channels. A PIM solution provides one source of truth for all data and automatically syncs listing updates to all channels.

Here’s an example of a product listing within a PIM system. Along the top, you can see the channels this listing is synced with. Any updates to the product information here will automatically update the listing information on all connected channels.

UPdate Listings Everywhere

What’s the best way to manage inventory and orders for multiple sales channels?

For small businesses, a multichannel inventory management system (IMS), such as Descartes Finale, is the best way to manage inventory and orders for multiple sales channels.

Fast-growing small to mid-sized ecommerce businesses should use an all-in-one ecommerce operations system, such as Descartes Sellercloud. Higher order volumes and complex inventory management require a more robust system than a standalone IMS.

Whichever system you use, choose tools that sync inventory across locations and platforms in real time. Also, look for business automation tools to optimize operational costs and efficiency.

Ready to see inventory and order management software in action?

Control My Inventory

How can I fulfill more orders without increasing headcount?

To increase warehouse throughput, which is the number of orders your warehouse can fulfill and ship each day, leverage software solutions. By using integrated warehouse technology, such as an all-in-one ecommerce operations platform, you can increase efficiency without hiring more workers.

Ways to fulfill more orders with warehouse technology include:

Show Me How

Real-world example: BW Retail increased warehouse throughput 4x

“The throughput and the productivity were 4x the amount with the WMS solution.”

–John White, Director of Warehouse Operations, BW Retail Solutions

Founded in 2017 as a partnership between two long-standing family businesses, BW Retail Solutions today is an ecommerce retailer primarily focusing on the power sports and lawn and garden industries.

With the business growing 30-40% per year, manual fulfillment practices began to impinge on warehouse efficiency and didn’t allow the business to scale easily.

To take fulfillment operations to the next level, BW Retail deployed Descartes solutions. The results were compelling:

Read Success Story

How does Descartes support multichannel ecommerce growth?

1,000+ ecommerce businesses trust Descartes ecommerce operations software to support multichannel growth. Descartes provides purpose-built solutions for problems like overselling and underselling, late orders, costly shipping, multichannel complexity, and marketplace compliance.

Grow My Business

Purpose-built solutions for every stage of business growth

From early-stage sellers to complex enterprise operations, online sellers appreciate the scalability of Descartes technology. Instead of shoving everyone into a one-size-fits-all solution which really fits nobody, Descartes tailors each tech stack to perfectly fit each business’ needs.

Customize My Tech Stack

Descartes solutions for multichannel ecommerce

Descartes offers a suite of integrated ecommerce software solutions to support multichannel ecommerce sellers. 1000+ businesses trust us as the source of truth for ecommerce operations.

Descartes offers an all-in-one ecommerce operations platform, Descartes Sellercloud. We also provide:

Our ecommerce experts work with you to build the right tech stack based on your unique business challenges. The goal? To help you easily add new sales channels, manage operations, and control costs as you sell more online.

Request a Demo

Key takeaways

Ready to avoid overselling and start scaling with Descartes?

Sell More Online

I want to sell more online.

Ready to see how Descartes solutions can help you add new sales channels, manage operations, and control costs?

Fill the form to request a demo now.

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