Marketplace Integration Services
Selling across Amazon, Walmart, eBay, HSN and Shopify usually means checking each platform separately for orders, stock and pricing. We integrate every marketplace directly into one ERP, so orders, inventory and accounting stay in sync across channels without a person reconciling them by hand.
+ RULES
The scope, and what has to get right.
- Order aggregation across channels. Orders from every marketplace land in one dashboard with unified status, instead of separate portals someone checks in turn.
- Real-time inventory sync. Stock levels stay accurate across every channel at once, so overselling on one platform because another platform's stock is not visible stops happening.
- Pricing and listing management. Pricing changes and listing updates propagate to every connected marketplace from a single source rather than being repeated per platform.
- Accounting kept in step with what shipped. Marketplace orders sync into QuickBooks or your ERP's accounting module automatically, matching what was actually fulfilled.
Inside the system, not bolted on.
Each marketplace as its own integration
Amazon, Walmart, eBay and Shopify each have their own API and rules, mapped separately even though they land in the same ERP dashboard.
Built into your existing ERP
Marketplace data flows into the system you already run, not a separate multi-channel tool with its own database to reconcile.
Automation layered on top
Shipping label generation, rate-shopping and OCR-based document matching connect to marketplace orders the same way they connect to any other order source.
Multi-marketplace ERP, EDI and logistics automation for a US consumer electronics brand
- Off Sage, with the operating history intact: Customers, vendors, items and transaction history were migrated from Sage into a browser-based ERP covering order-to-cash and procure-to-pay, with a full general ledger, receivables and payables, so the business changed systems without losing its records.
- Native EDI inside the ERP: Direct trading-partner connections for Amazon Vendor Central, Walmart, HSN, QVC and Costco with 850, 855, 856, 810, 846 and 997 documents, polled on schedules as short as ten minutes. Every job is tracked on a monitoring dashboard, and there is no third-party EDI middleware in the chain.
- Every channel in one order queue: Amazon Vendor Central and Seller Central (SP-API), Walmart, HSN, QVC, Costco, several Shopify storefronts, eBay and direct wholesale accounts land in one system. Vendor Central purchase orders are accepted or rejected back to Amazon from the same screen that shows system, 3PL and allocated stock.
- Multi-warehouse and multi-3PL stock: Real-time inventory across an owned warehouse operated with a logistics partner, a second third-party warehouse and Amazon fulfillment locations, with warehouse transfer orders and an Amazon inbound shipment request action for FBA.
- International purchasing and landed cost: Ocean and air freight purchase orders carry ETD, bill of lading, ETA and vessel details, and the ERP calculates landed cost at receiving from tariff classification, duty, tariff, harbor surcharge and freight per item.
Also relevant: ERP and automation for a refurbished hardware reseller
Common questions.
Which marketplaces do you integrate with?
Amazon, Walmart, eBay, HSN and Shopify are the ones we have built direct integrations for. Each has its own API and rules, mapped as its own integration into your ERP.
Does this replace checking each marketplace's own seller dashboard?
For day-to-day operations, yes. Orders, inventory and pricing are managed from your own system, though each marketplace's dashboard remains available for platform-specific settings.
Can this prevent overselling across channels?
Yes. Real-time inventory sync across every connected marketplace is exactly what removes the gap that causes one channel to sell stock another channel already sold.
How does this connect to accounting?
Marketplace orders sync into QuickBooks or your ERP's accounting module as they ship, so accounting reflects actual fulfillment rather than a manual reconciliation at month end.
How many portals do you check every morning?
Tell us which marketplaces you sell on and we will tell you what unifying them into one system would actually remove from your day.