B2B vs B2C E-commerce: Architectural Differences

Building a Business-to-Consumer (B2C) store is relatively straightforward: display a product, show a price, process the credit card. Business-to-Business (B2B) commerce introduces immense complexity that demands a specialized database and API architecture.

1. Pricing Logic is Exponentially Harder

In B2C, an item costs $20. Maybe there is a global 10% off sale. In B2B, pricing is uniquely tied to the logged-in Company. Company A might have a negotiated contract for 15% off all electronics. Company B might have a specific price of $14.50 for SKU 123. Your database architecture cannot simply query `products.price`. It must query a complex intersection of `customer_group_pricing` or `company_specific_price_lists`.

2. The Concept of "Companies" vs "Users"

A B2C database has a `users` table. A B2B database must have a `companies` table, and a `users` table that belongs to a company. Furthermore, users need role-based access control (RBAC). John might have permission to draft a cart, but only his manager Jane has the permission to submit the $10,000 purchase order.

3. Payment Methods: Net 30 Terms

B2B buyers rarely use credit cards at checkout. They use Purchase Orders and expect "Net 30" or "Net 60" payment terms. Your checkout architecture must allow for orders to be created with a status of "Payment Pending" and integrated directly with the supplier's ERP system (like NetSuite or SAP) to verify credit limits in real-time.

4. Bulk Ordering UX

B2C users browse visually. B2B users often know exactly what they want. They require "Quick Order" forms where they can paste a CSV of 50 SKUs and quantities and add them all to the cart in a single API call.