E-commerceIndustry: Manufacturing & DistributionHeadless Decoupled B2B Commerce with Bidirectional ERP Sync

Headless B2B Wholesale Ordering & Distributor Portal

A custom wholesale portal replacing manual email and telephone order placement with personalized tier pricing and ERP synchronization.

Operational Challenge

The Business Challenge

An industrial equipment supplier had over 400 authorized distributors placing orders via fragmented phone calls and spreadsheets, overwhelming sales coordinators with manual order entry.

Engineering Approach

Our Engineering Solution

We built a headless B2B portal integrated directly with the client's ERP, allowing distributors to view contracted credit limits, tier pricing, live inventory, and generate purchase orders directly.

System Architecture & Design

Technical Architecture Breakdown

High-performance enterprise wholesale portal interfacing with SAP/Oracle ERP for live inventory, tiered contract pricing, and credit terms.

Architectural Pattern:

Headless Decoupled B2B Commerce with Bidirectional ERP Sync

Storefront & Distributor UXTier 1

Lightning-fast static and server-rendered catalog with quick-order spreadsheets, bulk CSV upload, and quote request workflows.

Next.jsTypeScriptTailwind CSSReact Hook Form

Commerce Core & Business LogicTier 2

Decoupled microservice evaluating multi-tiered price contracts, account credit limits, sales tax calculations, and approval workflows.

Node.jsExpress / NestJSJWT AuthREST APIs

Enterprise ERP Sync LayerTier 3

Bi-directional event worker syncing purchase orders, shipping manifests, and live inventory levels directly with legacy ERP backends.

SAP / NetSuite ConnectorsRabbitMQRedis Cache

Data Persistence TierTier 4

Robust database maintaining distributor hierarchies, purchase history, payment ledgers, and dynamic invoice generation.

PostgreSQLAWS S3Elasticsearch

Core Architectural Guarantees

Instant Wholesale Catalog Search: Sub-50ms search response across 50,000+ SKU variants via Elasticsearch

Dynamic Contract Pricing Engine: Real-time price resolution based on distributor tier, volume commitments, and currency

Credit Limit Protection: Automated hold workflows if new order totals exceed authorized distributor credit limits

Zero-Downtime Resilience: Storefront remains fully operational to capture orders even during periodic ERP maintenance windows

Business Impact

Measurable Operational Results

85% of distributors transitioned to digital ordering within 60 days of launch

Order processing cycle time plummeted from 48 hours to under 15 minutes

Eliminated out-of-stock ordering errors through live ERP inventory synchronization

Allowed sales managers to focus on high-value client acquisition instead of order entry

Architecture Blueprint

Pattern

Headless Decoupled B2B Commerce with Bidirectional ERP Sync

Tiers

4 Layers

Deployment

Cloud Native

Verified Tech Stack

Next.jsTypeScriptTailwind CSSPostgreSQLREST APIsRedis

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