Guide

What Is Ecommerce? B2C, B2B, Marketplaces, and Platform Options

Ecommerce is the buying and selling of goods and services online. Learn the types (B2C, B2B, marketplace), payment gateways, platform options, and how to build a successful online store.

Posted Feb 28, 2026By Moydus Team
What Is Ecommerce? B2C, B2B, Marketplaces, and Platform Options

Ecommerce is the buying and selling of goods and services online. Learn the types (B2C, B2B, marketplace), payment gateways, platform options, and how to build a successful online store.

Key Takeaways

  • Ecommerce is any commercial transaction conducted electronically over the internet.
  • The three primary models are B2C (business to consumer), B2B (business to business), and marketplace (multi-vendor).
  • Payment gateways, inventory management, and checkout UX are critical e-commerce infrastructure components.
  • Platform choice (Shopify, WooCommerce, custom) should be driven by scale, customization, and integration needs.

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Short Answer

Ecommerce is the buying and selling of goods and services online. Learn the types (B2C, B2B, marketplace), payment gateways, platform options, and how to build a successful online store. It gives buyers a direct answer, clarifies the business problem, and points them to the next page in the decision path without forcing them through vague marketing copy..

Ecommerce (electronic commerce) is the buying and selling of goods and services over the internet, including the transfer of money and data to execute these transactions. Global ecommerce sales exceeded $6 trillion in 2024 and continue to grow as buyer behavior shifts online across virtually every product category.

Whether you sell physical products, digital downloads, subscriptions, or professional services, ecommerce infrastructure is the engine behind online revenue.


Types of Ecommerce

B2C (Business to Consumer)

The most familiar model: a business sells directly to individual consumers. Think retail stores online — apparel, electronics, health products, food. B2C is characterized by high transaction volume, lower average order values, and a focus on customer acquisition and conversion rate.

B2B (Business to Business)

B2B ecommerce handles transactions between businesses. Features often required include:

B2B ecommerce has higher average order values and longer sales cycles than B2C.

C2C (Consumer to Consumer)

Platforms where consumers sell to other consumers. eBay and Facebook Marketplace are examples. This model typically requires marketplace infrastructure.

Multi-Vendor Marketplace

A multi-vendor marketplace aggregates multiple sellers on one platform. The platform operator manages infrastructure, payments, and trust while sellers list their own products. Commissions or subscription fees generate revenue.


Core Ecommerce Infrastructure

Product Catalog and Inventory

A reliable inventory management system tracks stock levels, SKUs, variants (size, color), and availability across channels. Poor inventory management leads to overselling, stockouts, and customer service issues.

Payment Gateways

A payment gateway processes transactions securely. Key considerations:

GatewayBest For
StripeDeveloper-friendly, subscription support
PayPalConsumer trust, international payments
SquareIn-person + online unified commerce
Authorize.netEnterprise B2B and legacy integrations

Checkout UX

Checkout best practices

Checkout is where most ecommerce revenue is won or lost:

  • Guest checkout option (no forced account creation)
  • Minimal form fields
  • Multiple payment methods (cards, PayPal, Apple Pay, Buy Now Pay Later)
  • Clear shipping cost and delivery date estimates
  • Trust signals near the buy button

Order Management

After payment, orders must be fulfilled, tracked, and managed. Order management systems (OMS) handle fulfillment routing, shipping label generation, return processing, and customer notifications.


Platform Options

PlatformBest For
ShopifySMB retail, fast launch, app ecosystem
WooCommerceWordPress-based stores, existing WP sites
Magento / Adobe CommerceLarge catalog enterprise retail
BigCommerceGrowing brands, B2B support
Custom buildUnique models, marketplaces, complex B2B

Platform selection should be driven by your transaction volume, customization requirements, integration needs, and long-term scalability — not by which platform is easiest to demo.


Headless Ecommerce

Headless commerce separates the frontend presentation from the ecommerce backend. A headless storefront delivers faster pages (often 2–4x better Core Web Vitals), greater design freedom, and the ability to sell across web, mobile, and other channels from a single backend.


How Moydus Helps

Moydus builds custom ecommerce websites and multi-vendor marketplaces tailored to complex business models that off-the-shelf platforms cannot support. From B2B catalog management to marketplace commission systems, our web development team delivers ecommerce solutions designed for scale.

Contact us to scope your ecommerce project.


Frequently Asked Questions


The Problem

The Solution

Moydus uses What Is Ecommerce? B2C, B2B, Marketplaces, and Platform Options to explain the decision clearly, connect the topic to real use cases, and move readers toward the next practical step instead of generic education.

How It Works

  1. Define the exact question the page needs to answer.
  2. Translate the answer into plain language, examples, and decision criteria.
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Expected Result

The reader gets a direct answer, understands the tradeoffs faster, and has a clear path to the next relevant page instead of bouncing after the first scan.

Proof

FAQ

What is the difference between B2C and B2B ecommerce?
B2C sells directly to individual consumers (retail). B2B sells to other businesses — often with bulk pricing, purchase orders, credit terms, and account-based management..

What is a payment gateway?
A payment gateway is a service that processes credit card and online payment transactions securely. Examples include Stripe, PayPal, Square, and Authorize.net. It encrypts.

What is a multi-vendor marketplace?
A marketplace allows multiple third-party sellers to list and sell products on one platform. The marketplace operator earns a commission on each sale. Examples.

Should I build a custom ecommerce site or use Shopify?
Shopify is fast to launch and works well for straightforward retail. Custom development is better for unique business models, complex integrations, B2B workflows, or.

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