⚑ Custom Software & ERP Integration

Custom Multi-Vendor Marketplace Development & ERP Integration

We architect, engineer, and scale high-throughput multi-vendor marketplace platforms with custom seller portals, automated split-order routing, escrow payout engines, and bidirectional synchronization with Microsoft Dynamics 365 Business Central and CRM.

πŸ›‘οΈ 100% IP & Code Ownership
⚑ Sub-Second API Split Routing
πŸ’Ό Dynamics 365 ERP & CRM Ready
Multi-Vendor Marketplace Development and Dynamics 365 ERP Architecture Concept
Scale Analysis

Why Monolithic Marketplace Plugins Fail at Scale

Generic marketplace plugins (Shopify apps, WooCommerce multi-vendor modules) hit architectural ceilings as transaction concurrency and vendor catalogs multiply.

❌ OFF-THE-SHELF PLUGINS

Rigid SaaS & Monolithic Extensions

  • ⚠️ Database Concurrency Locks: Shared MySQL databases lock rows during multi-item checkouts, causing cart abandonments and timeout errors during flash promotions.
  • ⚠️ Manual Payout Reconciliations: Lacks automated escrow accounting. Finance teams spend hours manually matching supplier bank transfers with platform commission spreadsheets.
  • ⚠️ Disconnected ERP Workflows: Sub-orders do not create native Vendor Purchase Orders or AP Invoices in Business Central, creating massive general ledger drift.
  • ⚠️ Zero B2B Trade Flexibility: Cannot support complex corporate credit limits, Request-for-Quote (RFQ) negotiations, or custom contract pricing matrices.
βœ… ALLGROW CUSTOM PLATFORM

Decoupled Cloud & ERP Architecture

  • πŸš€ Decoupled Microservices: High-performance Next.js frontends and asynchronous event-driven worker services built on Azure / AWS handle tens of thousands of concurrent requests effortlessly.
  • ⚑ Automated Order Splitting & Escrow: Real-time partitioning into merchant sub-orders, dynamic shipping calculation, automated commission withholding, and Stripe Connect / Adyen payouts.
  • πŸ’Ό Bi-Directional Business Central Sync: Instant generation of Vendor AP Invoices in Business Central with commission discounts, ensuring 100% automated GL reconciliation.
  • 🎯 Enterprise B2B & CRM Orchestration: Full Dynamics 365 CRM integration for vendor onboarding approvals, KYC validation, customer dispute tickets, and tailored contract catalogs.
Platform Engineering

End-to-End Multi-Vendor Engineering Capabilities

We build bespoke marketplace software that aligns with your specific operational model, supply chain requirements, and enterprise financial governance.

πŸͺ
Merchant Portal

Custom Multi-Tenant Seller Portals

Give vendors a branded digital workspace to manage product catalogs, bulk CSV/API inventory sync, live order dispatching, carrier tracking updates, and earnings analytics.

Self-Service KYC • Automated Onboarding
⚑
Order Engine

Intelligent Split-Order Routing

When buyers checkout with items from multiple sellers, our event router instantly creates discrete vendor sub-orders, calculates split shipping matrices, and manages decentralized fulfillment.

Sub-second Latency • Multi-Carrier APIs
πŸ’°
Financial Engine

Automated Payouts & Commission Engine

Configure flexible commission structures (percentage, fixed tier, category-based), escrow holding rules until fulfillment proof, and direct vendor disbursements via Stripe Connect or Adyen.

Escrow Protection • Tax 1099 Readiness
🏒
ERP Integration

Dynamics 365 Business Central ERP Core

Eliminate manual bookkeeping. Every marketplace order automatically creates Vendor Purchase Invoices, tracks commission revenue, updates GL accounts, and coordinates drop-ship inventories.

Custom AL Codeunits • Zero Re-Keying
🀝
CRM & B2B Trade

Dynamics 365 CRM Relationship Lifecycle

Manage high-value B2B vendor contracts, merchant performance ratings, multi-tier buyer credit limits, punch-out catalogs, and dispute management cases in Dynamics 365 CRM.

Dataverse Sync • Automated Approvals
☁️
Cloud Infrastructure

High-Concurrency Cloud Architecture

Built with Next.js, TypeScript, Go/Node.js, and containerized Docker/Kubernetes on AWS or Azure. Designed for 99.99% uptime, distributed caching, and zero single points of failure.

Auto-Scaling • SOC2 Compliance Ready
Frictionless Seller Experience

Intuitive Seller Dashboards That Scale Vendor Onboarding

Marketplace growth hinges on seller adoption. We build modern, lightning-fast merchant dashboards where vendors manage their entire operations without ever reaching out for manual platform support.

  • βœ” Automated tax ID, bank verification, and KYC onboarding
  • βœ” Bulk inventory feeds via CSV, FTP, REST API, or Shopify app
  • βœ” Real-time order notifications with packing slip generation
  • βœ” Live financial ledger showing gross sales, commission, and net payouts
Review Portal Architecture β†’
Modern Multi-Vendor Seller Portal UI Dashboard Mockup
ERP Financial Precision

Automated Split-Order Routing & Business Central Reconciliation

When a customer order contains products from 3 distinct vendors, our integration pipeline automatically splits the parent order, routes sub-orders to the respective vendors, and executes custom AL code in Business Central to book Accounts Payable invoices with the agreed commission deductions.

  • βœ” Parent order captured with single unified customer payment token
  • βœ” Sub-orders dispatched asynchronously via Azure Service Bus queues
  • βœ” Business Central Purchase Invoices auto-generated with net vendor payable
  • βœ” Complete audit trail eliminating manual month-end accounting reconciliation
Read Detailed Technical Blueprint β†’
Split-Order Routing and Business Central ERP Reconciliation Blueprint
Commercial Governance

Dynamics 365 CRM for B2B Merchant & Buyer Management

For B2B wholesale marketplaces, transactions require relationship governance. We bridge your marketplace with Dynamics 365 CRM and Power Platform to manage vendor contracts, tiered trade volume rebates, dispute escalation, and buyer credit approvals.

  • βœ” Custom C# plugins in Dataverse enforcing credit limit compliance
  • βœ” Automated vendor performance scorecards (fill rate, return rate, SLA)
  • βœ” Dispute resolution tickets linked directly to the sub-order audit log
  • βœ” Omnichannel communication history shared across customer service teams
Explore Dynamics 365 CRM Practice β†’
Dynamics 365 CRM B2B Merchant Lifecycle Dashboard
Domain Tailoring

Architected for Both B2B Wholesale & High-Volume B2C

Whether you are building a consumer multi-brand boutique or a closed-loop wholesale industrial marketplace, our architecture adapts to your exact business rules.

Marketplace Feature B2B Wholesale Marketplace B2C Retail Marketplace
Pricing & Catalog Visibility Customer-specific contract pricing, hidden catalog gates, volume tier discounts, and punch-out catalog support. Public pricing, promotional sales, cross-sell recommendation carousels, and flash discount timers.
Checkout & Payment Terms Net 30/60 trade terms, corporate purchase orders (PO), credit limit validations, and bank wire transfers. Instant card checkout, Apple Pay, Google Pay, Buy-Now-Pay-Later (Klarna/Affirm), and gift cards.
Order Negotiation Interactive Request-for-Quote (RFQ) engine with real-time merchant counter-offers and multi-tier approval chains. Instant direct purchase with dynamic shipping calculation and real-time carrier delivery estimates.
Vendor Fulfillment Model LTL freight, palletized drop-shipping, specialized warehouse BOL tracking, and blanket order release schedules. Parcel shipping (FedEx, UPS, USPS), prepaid carrier label generation, and automated delivery tracking links.
ERP Integration Focus Deep customer ledger credit check, automated Sales Blanket Orders, and complex tax exemption certificate handling. High-speed sales posting, automated vendor AP payments, and real-time inventory decrement sync.
Technology Stack

Modern, Battle-Tested Engineering Stack

We build on enterprise-grade, open technologies that eliminate vendor lock-in and allow your internal engineering team to own and extend the platform.

Frontend Layer

Next.js 15, React, TypeScript, Tailwind CSS, sub-second Edge caching, and fully responsive mobile interfaces.

Backend & APIs

Node.js, .NET Core 9, Go microservices, GraphQL, REST API Gateway, and asynchronous webhook dispatchers.

Data & Messaging

PostgreSQL, Redis caching, Elasticsearch / Meilisearch, and Azure Service Bus / AWS SQS event queues.

ERP & Payments

Microsoft Dynamics 365 Business Central AL APIs, Dynamics 365 CRM, Stripe Connect, and Adyen Marketplace.

Delivery Framework

From Architecture Blueprint to Production Scale

Our phased agile delivery methodology delivers working, tested software at every two-week sprint interval.

PHASE 01 • WEEKS 1-2

Architecture & Scoping

Domain modeling, API contract definition, ERP data mapping, payment flow validation, and cloud infrastructure specification.

PHASE 02 • WEEKS 3-6

Core Platform Build

Buyer storefront, custom multi-tenant seller portal, catalog ingestion engine, and automated split-order routing logic.

PHASE 03 • WEEKS 7-10

ERP & Financial Sync

Dynamics 365 Business Central AL codeunits, CRM workflows, payment gateway escrow setup, and automated AP invoice booking.

PHASE 04 • WEEKS 11-12+

Load Test & Cutover

Simulated concurrency testing, seller sandbox onboarding, SOC2 baseline audit, production zero-downtime launch, and SLA support.

Common Questions

Frequently Asked Questions

Key questions enterprise leaders ask when planning custom multi-vendor marketplace development.

Who owns the source code and intellectual property of the marketplace?

You retain 100% intellectual property ownership of all custom code, frontends, APIs, database schemas, and Business Central AL extensions developed during the engagement. We provide full git repository transfers upon project completion with zero recurring platform software licensing fees.

How does the marketplace synchronize data with Dynamics 365 Business Central?

We build secure, decoupled integrations using custom AL API codeunits in Business Central paired with an asynchronous message queue (Azure Service Bus). This prevents website checkout slowdowns even if the ERP is undergoing a backup or batch posting run. Changes in inventory, pricing, or orders sync with sub-second latency.

How are multi-vendor payments, shipping, and commissions handled?

Buyers complete checkout with a single payment. Our payment orchestrator (via Stripe Connect, Adyen, or custom merchant escrow) automatically splits funds: platform commissions are held in your corporate account, while net vendor payouts are queued for disbursement after automated fulfillment verification or delivery confirmation.

Can vendors synchronize their catalog from their own Shopify or ERP stores?

Yes. In addition to our web-based seller portal, we engineer automated integration bridges that allow top-tier vendors to push product feeds and inventory counts directly via REST APIs, webhook subscriptions, FTP/CSV drops, or native Shopify-to-Marketplace connector apps.

Can this architecture support B2B Wholesale features like RFQs and Net Terms?

Absolutely. We specialize in enterprise B2B workflows including multi-tier buyer approval chains, Request-for-Quote (RFQ) bidding between buyers and vendors, corporate credit limit validations against Business Central customer ledgers, and automated Net 30/60 invoice generation.

What post-launch support and SLA options does Allgrow provide?

We offer comprehensive managed support programs including under 1-hour critical response SLAs, 24/7 cloud infrastructure monitoring, semi-annual Business Central release wave testing, and continuous feature enhancement sprint retainers.

Direct Engineering Consultation

Ready to Build Your Custom Multi-Vendor Marketplace?

Schedule a confidential 30-minute architecture review with our senior eCommerce engineers and Business Central ERP specialists. Discuss your catalog scale, split-order workflows, and ERP integration requirements.

Claim Free 30-Min Architecture Review β†’ Read Architectural Case Study