Vendor Central, Connected the Modern Way: SP-API Instead of EDI
InfiPlex connects your Amazon Vendor Central account — Direct Fulfillment and Warehouse (Retail) Orders alike — straight through Amazon's Selling Partner API. Purchase orders, acknowledgements, shipping labels, Advance Ship Notices, and invoices all flow automatically, with no EDI VAN subscription required.
The #1 Vendor Central SP-API Integration for Cutting EDI Costs
Amazon exposes Vendor Central data through its own Selling Partner API — you no longer have to reach it through a paid EDI middleman.
InfiPlex is an approved application on the Amazon Selling Partner Appstore for both Seller Central and Vendor Central, having passed Amazon's security review to process PII data on your behalf. InfiPlex is also an Amazon Web Services Technology Partner, having passed AWS's Technical Baseline Review. See the InfiPlex Security Overview for full details.
InfiPlex is the number one Vendor Central SP-API integration available — whether you're a vendor running your own Direct Fulfillment account or a 3PL fulfilling Vendor Central orders on a client's behalf. It connects straight through Amazon's modern Selling Partner API instead of a legacy EDI feed. If you're still connecting to Vendor Central Direct Fulfillment via EDI, switching to InfiPlex's SP-API integration typically pays for itself, since the EDI VAN costs alone are often enough to cover the monthly package.
Traditional Vendor Central EDI connections run through a paid Value-Added Network (VAN), with recurring subscription and per-document fees on top of whatever an EDI provider charges to set it up. InfiPlex connects directly to Amazon's Vendor Central SP-API endpoints instead, so there's no VAN sitting in the middle — just your data moving straight between InfiPlex and Amazon.
Two Vendor Central Programs, One Integration
Amazon Vendor Central covers two distinct order types — InfiPlex automates both from the same account, so you're not stitching together separate tools.
Direct Fulfillment (Drop Ship)
Amazon purchases your inventory, lists it as Sold by Amazon, and has you ship each order straight to the customer. InfiPlex automates the whole order lifecycle:
- Automatically pulls new POs and sends Purchase Order Acknowledgement
- Prints Amazon-compliant shipping labels
- Sends Advance Ship Notices (ASNs) back to Amazon automatically
- Processes and submits Direct Fulfillment invoices
- Optional connections to your ERP or shipping system
- InfiPlex manages connection set-up for you — support included
Warehouse (Retail) Orders
Amazon purchases inventory in bulk, has it shipped into its own fulfillment network, then sells and ships to customers itself. InfiPlex keeps the bulk PO cycle moving:
- Automatically pulls new bulk PO requests from Amazon
- Automates PO confirmations back to Amazon
- Sends Advance Ship Notices (ASNs) for every shipment
- Optional connections to your ERP or shipping system
- InfiPlex manages connection set-up for you — support included
How a Direct Fulfillment Order Moves Through InfiPlex
The same four-stage flow runs automatically for every Direct Fulfillment PO Amazon sends you.
Receive & Acknowledge
InfiPlex pulls the new PO from Amazon and sends the Purchase Order Acknowledgement automatically.
Pick, Pack & Label
Print Amazon-compliant shipping labels straight from InfiPlex, optionally routed through your ERP or 3PL.
Ship & Send ASN
The moment an order ships, the Advance Ship Notice posts back to Amazon — no manual entry.
Submit Invoice
InfiPlex processes and submits the Direct Fulfillment invoice to close out the order.
Included on Every InfiPlex Plan
Vendor Central — Direct Fulfillment and Warehouse Orders alike — is a standard integration on every InfiPlex plan, from Basic Starter ($49.99/mo) to Growth Pro ($999.99/mo). 3PLs running Vendor Central DF for multiple clients can use the 3PL Connector package instead.
Amazon Vendor Central Integration FAQs
The questions vendors and 3PLs ask most before moving Vendor Central off EDI.
What's the difference between Direct Fulfillment and Warehouse (Retail) Orders?
Direct Fulfillment is Amazon's vendor drop-ship program: Amazon purchases your inventory and has you ship each order straight to the end customer. Warehouse (Retail) Orders is Amazon's bulk program: Amazon purchases inventory in bulk, has it shipped into its own fulfillment centers, then sells and ships to customers itself. InfiPlex automates both from one account.
Does InfiPlex connect to Vendor Central through EDI or Amazon's API?
Amazon's API — specifically the Vendor Central endpoints of the Selling Partner API (SP-API). InfiPlex connects directly, so there's no EDI provider or EDI VAN in the middle of your order data.
Why switch a Direct Fulfillment connection from EDI to InfiPlex's SP-API integration?
Legacy EDI connections run through a paid Value-Added Network (VAN) with recurring subscription and per-document fees, on top of whatever an EDI provider charges to set it up. Moving that connection to InfiPlex's SP-API integration removes the VAN entirely — the savings are often enough on their own to cover the monthly InfiPlex package.
What does the Direct Fulfillment integration include?
Automatic PO pulls with Purchase Order Acknowledgement, Amazon-compliant label printing, automatic Advance Ship Notifications, Direct Fulfillment invoice processing, and optional connections to your ERP or shipping system. See the Direct Fulfillment guide for the full breakdown.
What does the Warehouse (Retail) Orders integration include?
Automatic bulk PO pulls, automated PO confirmations back to Amazon, Advance Ship Notifications for every shipment, and optional connections to your ERP or shipping system. See the Warehouse Orders guide for details.
Is InfiPlex Amazon-approved and secure enough to handle Vendor Central data?
Yes. InfiPlex is an approved application on the Amazon Selling Partner Appstore for both Seller Central and Vendor Central, and has passed Amazon's security review to process PII on your behalf. InfiPlex is also an AWS Technology Partner that has passed AWS's Technical Baseline Review — see the InfiPlex Security Overview.
Does Vendor Central integration cost extra on top of my InfiPlex plan?
No — Vendor Central, like other standard marketplace integrations, is included on every InfiPlex plan: Basic Starter ($49.99/month), Growth Starter ($499.99/month), and Growth Pro ($999.99/month). 3PLs fulfilling Vendor Central orders for multiple clients can instead use the 3PL Connector package. See Pricing for full details.
How long does it take to connect a Vendor Central account?
Your InfiPlex OMS site is typically provisioned within 1–2 business days of signing up. From there you authorize InfiPlex on Amazon's own consent screen, and Vendor Central order data begins flowing right away.
Does InfiPlex also support Amazon Seller Central and Amazon Business?
Yes. Amazon Seller Central runs through the standard SP-API integration, and Amazon Business orders flow through that same connection — all three can run side by side under one InfiPlex account.
Keep Exploring InfiPlex
Related reading for vendors, brands, and 3PLs working with Amazon.
Amazon SP-API Guide
The complete walkthrough of Amazon's Selling Partner API, for Seller Central and beyond.
3PL Connector
How warehouses use InfiPlex to connect every client to every sales channel, including Vendor Central.
InfiPlex Data Bridge
Point your own ERP or order process at the InfiPlex REST API instead of the OMS dashboard.
Ready to Move Vendor Central Off EDI?
See how fast your Direct Fulfillment and Warehouse orders can be flowing through InfiPlex — no VAN, no developers.
Amazon and all related marks are trademarks of Amazon.com, Inc. or its affiliates.
