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Home/Guides/Building a B2B E-Commerce Platform: What Traditional Platforms Get Wrong
E-Commerce & Platforms

Building a B2B E-Commerce Platform: What Traditional Platforms Get Wrong

B2B e-commerce has fundamentally different requirements from B2C — yet most platforms try to force B2C patterns onto B2B buyers. This guide explains what B2B commerce actually needs and how to build it right.

By HunchbiteFebruary 6, 202614 min read
B2Be-commerceplatform

Every B2B e-commerce project we've worked on has started with the same conversation:

"We tried [Shopify / WooCommerce / Magento]. It doesn't work for our business."

That's not because those platforms are bad. It's because they were designed for consumers buying a t-shirt, not procurement teams ordering 500 units of industrial fasteners with negotiated pricing, purchase order terms, and multi-location delivery.

B2B commerce is a fundamentally different problem. And trying to solve it with B2C tools is like using a sedan to haul construction materials — technically possible, practically miserable.

This guide explains what makes B2B different, where traditional platforms fail, and how to build a B2B commerce platform that actually works for your buyers and your business.

Why B2B is fundamentally different from B2C

The buyer is different

B2C buyer: Individual. Makes emotional decisions. Browses casually. Compares prices. Buys impulsively. Single transaction.

B2B buyer: Professional. Makes rational, committee-driven decisions. Has specific needs. Cares about compliance, reliability, and relationships. Buys repeatedly over years.

A B2C store needs to seduce. A B2B platform needs to serve.

The transaction is different

Dimension B2C B2B
Order value ₹500–₹50,000 ₹50,000–₹50,00,000+
Payment Credit card, immediate Purchase order, net 30/60/90
Pricing Fixed, same for everyone Negotiated, customer-specific
Decision-maker Individual Committee (3–7 people)
Buying frequency One-off or seasonal Regular (weekly/monthly reorders)
Catalog Full catalog visible Customer-specific catalogs
Checkout Self-service, instant Often requires approval workflows
Shipping Standard options Custom logistics, multi-location
Returns Simple, standardized Complex, relationship-dependent

When you look at this table, it's obvious why Shopify — designed for the left column — struggles with the right column.

The relationship is different

B2C is transactional. B2B is relational.

Your B2B customer isn't choosing between you and a competitor for a one-time purchase. They're choosing a partner for years of repeat business. The platform needs to support this relationship: custom pricing, account management, order history, reordering, credit limits, and dedicated support.

Where traditional platforms fail for B2B

Problem 1: Fixed pricing model

B2C platforms assume one price for everyone. Buy the product, pay the listed price.

B2B pricing is a matrix:

  • Customer-specific pricing — Customer A pays ₹100/unit, Customer B pays ₹85/unit based on their contract
  • Volume discounts — Buy 100, pay ₹100 each. Buy 1,000, pay ₹80 each. Buy 10,000, get a custom quote.
  • Tiered pricing — Based on the customer's tier (bronze, silver, gold, platinum)
  • Contract pricing — Prices locked in for 6–12 months based on a signed agreement
  • Bundle pricing — Buy products A and B together for a special rate

Shopify can do basic price breaks with apps. But customer-specific contract pricing, with volume tiers, across thousands of products? You're writing custom code regardless — and fighting the platform every step.

Problem 2: No quote/RFQ workflow

Many B2B transactions start with a quote, not a cart. The buyer says "I need 500 units of X, 200 units of Y, delivered to 3 locations — what's the price?"

The platform needs to:

  1. Accept the quote request
  2. Route it to the right salesperson
  3. Let the salesperson create a custom quote (with negotiated pricing, payment terms, validity period)
  4. Send the quote to the buyer for review
  5. Allow the buyer to accept, negotiate, or decline
  6. Convert accepted quotes to orders

This workflow doesn't exist in any off-the-shelf B2C platform. You either build it custom or use a dedicated B2B platform.

Problem 3: No approval workflows

In B2B, the person browsing the catalog is often not the person authorized to approve the purchase.

A purchasing agent selects products. A manager approves orders under ₹5L. A director approves orders over ₹5L. The CFO approves orders over ₹50L.

The platform needs:

  • Role-based access within a single company account
  • Approval chains with configurable thresholds
  • Email notifications at each approval step
  • Audit trail of who approved what and when

B2C platforms have no concept of "organizational accounts with internal approval workflows." This is pure custom development.

Problem 4: Inadequate catalog management

B2B catalogs have challenges B2C stores never face:

  • Tens of thousands of SKUs with complex attributes (dimensions, materials, certifications, compatibility)
  • Customer-specific visibility — Company A sees products 1–500, Company B sees products 200–800
  • Product relationships — This gasket goes with that valve; this cable requires that connector
  • Minimum order quantities — Can't order 1 of something, minimum is a case of 24
  • Unit of measure variations — Same product sold by the piece, by the box, by the pallet
  • Product configurators — Custom specifications where the buyer selects dimensions, material, finish, and the platform calculates price and lead time

Problem 5: Payment terms

B2C: pay now, get the thing. Simple.

B2B: Invoice me, I'll pay in 30 days. Or 60. Or 90. Against a purchase order. With a credit limit that you've approved. And I need the invoice to match our PO number exactly, or accounts payable will reject it.

Features needed:

  • Credit limits per customer
  • Net 30/60/90 payment terms
  • Purchase order reference on every order
  • Invoice generation matching the customer's PO
  • Overdue payment tracking
  • Statement of accounts
  • Integration with the customer's procurement system (Ariba, Coupa, etc.)

None of this exists in standard e-commerce platforms.

Problem 6: Multi-location and split shipping

B2B orders often ship to multiple locations:

  • "Send 200 units to our Delhi warehouse, 150 to Mumbai, and 100 to Bangalore"
  • Each location might have different delivery requirements (dock delivery, inside delivery, appointment required)
  • Shipping costs vary by location and are often negotiated

B2C shipping: pick a speed, get a label. B2B shipping: a logistics negotiation per order.

How to build B2B commerce right

Architecture: headless with a purpose

A B2B commerce platform should be built headless — not because it's trendy, but because B2B requires:

  • Custom frontend for each buyer type (self-service buyers vs. assisted buyers)
  • API-driven backend that integrates with ERP, CRM, and procurement systems
  • Flexible data model that supports the pricing, catalog, and workflow complexity described above

Our typical B2B commerce stack:

Layer Technology Why
Frontend Next.js Fast, SEO-friendly, supports complex UI interactions
Commerce engine Medusa.js (extended) or custom Node.js Extensible enough for B2B logic
Database PostgreSQL Handles relational complexity (pricing matrices, org hierarchies)
Search Meilisearch Faceted search across large catalogs with complex filters
Authentication Custom (role-based) Organizational accounts with permissions
Payments Stripe (for card) + Custom (for invoicing) Flexible enough for both B2C and B2B payment models

Core features for a B2B platform

Phase 1: Foundation (weeks 1–3)

  1. Organizational accounts — Companies sign up. Within each company, multiple users with different roles (buyer, approver, admin, viewer).

  2. Customer-specific pricing — Each company sees their negotiated prices. Volume discounts apply automatically. The pricing engine is the heart of the system.

  3. Product catalog with advanced filtering — Faceted search (filter by material, size, certification, availability). Product data sheets and technical documentation available per product.

  4. Cart and checkout — Supports PO reference, delivery notes per line item, multi-location shipping selection, and payment method selection (card, invoice, wire transfer).

  5. Order management — Order history, tracking, reorder functionality, and order modification requests.

Phase 2: Business logic (weeks 3–5)

  1. Quote/RFQ system — Request for quote workflow with internal routing, salesperson tools, and buyer approval.

  2. Approval workflows — Configurable approval chains based on order value, product category, or custom rules.

  3. Invoice and payment terms — Generate invoices, track payments, enforce credit limits, handle overdue accounts.

  4. Reordering — One-click reorder from past orders. Saved order templates for recurring purchases. Scheduled automatic reorders.

Phase 3: Integration and optimization (weeks 5–7)

  1. ERP integration — Sync inventory, pricing, and orders with SAP, NetSuite, Tally, or custom ERP.

  2. Advanced reporting — Sales by customer, product performance, inventory velocity, outstanding receivables.

  3. Email automation — Order confirmations, shipping notifications, invoice reminders, abandoned cart recovery.

The data model matters most

The single most important technical decision in B2B commerce is the data model. Get it wrong and everything downstream is painful. Get it right and the system grows naturally.

Key entities and relationships:

Organizations
  └─ Users (with roles: admin, buyer, approver, viewer)
  └─ Price Lists (customer-specific pricing)
  └─ Credit Terms (limits, payment terms)
  └─ Shipping Locations (multiple addresses)

Products
  └─ Variants (size, color, material combinations)
  └─ Pricing Rules (volume tiers, bundle discounts)
  └─ Categories / Collections
  └─ Technical Documents (PDFs, spec sheets)
  └─ Compatibility Relationships (goes-with, requires)

Orders
  └─ Line Items (with per-line shipping destinations)
  └─ Approval Status (pending, approved, rejected)
  └─ Purchase Order Reference
  └─ Invoices (linked to orders, with payment tracking)

Quotes
  └─ Quote Items (with negotiated pricing)
  └─ Validity Period
  └─ Approval Chain
  └─ Conversion to Order

What it costs and how long it takes

B2B platform type Complexity Cost (fixed) Timeline
Simple B2B storefront (catalog + pricing + orders) Basic ₹12L–₹20L 3–4 weeks
Full B2B platform (quotes, approvals, invoicing) Medium ₹20L–₹35L 5–7 weeks
Enterprise B2B (ERP integration, multi-region, configurator) Complex ₹35L–₹60L+ 8–12 weeks

These costs include the complete build — frontend, backend, admin panel, deployment, and training. Ongoing maintenance is typically ₹1.5L–₹3L/year.

Compare this to enterprise B2B platforms like SAP Commerce Cloud (₹50L+ per year in licensing alone) or BigCommerce B2B (₹5L+/month), and custom development starts to look very attractive.

Real-world considerations

Start with self-service, add sales tools later

Your first B2B customers might be small accounts that are comfortable with self-service ordering. Start there. Build the catalog, pricing engine, and checkout. Get it working for self-service buyers.

Then add the quote system, approval workflows, and sales tools as you move upmarket. Don't build everything at once.

Integrate with what your team already uses

Your sales team lives in their CRM. Your finance team lives in Tally or QuickBooks. Your warehouse team uses a WMS. The e-commerce platform should feed data into these systems, not replace them.

Plan integrations early, even if you build them later. The data model needs to support them from day one.

Mobile matters, but differently

B2B buyers don't browse on their phones like consumers. But they do:

  • Check order status on their phone
  • Approve purchase requests on the go
  • Look up product specifications on the warehouse floor
  • Reorder from their phone when they realize stock is low

The mobile experience should be functional and fast, focused on these use cases. It doesn't need to be a consumer-grade shopping experience.

Don't forget the sales team

Your B2B platform isn't just for buyers. Your sales team needs:

  • Customer dashboards (what are they ordering? What haven't they ordered recently?)
  • Quote creation tools
  • Order-on-behalf (place orders for customers during a call)
  • Commission tracking
  • Activity history

Build sales tools into the platform from the start, not as an afterthought.

The bottom line

B2B e-commerce requires a fundamentally different platform from B2C. Traditional platforms can't handle the pricing complexity, organizational structures, approval workflows, and payment terms that B2B demands.

Building custom is an investment — but it's an investment that pays for itself through:

  • Higher adoption (buyers actually want to use a platform that works for them)
  • Lower operational cost (fewer manual processes, fewer spreadsheets)
  • Larger average order values (easy reordering and proper pricing increase order frequency and size)
  • Competitive advantage (most of your competitors are still using PDF order forms)

Building a B2B commerce platform? Book a free discovery call — we've built B2B platforms across industries and can help you plan the right approach for your business. Or request a free audit if you have an existing platform that's not meeting your needs.

Next step

Ready to move forward?

If this guide resonated with your situation, let's talk. We offer a free 30-minute discovery call — no pitch, just honest advice on your specific project.

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