eCommerce Platforms integration
Wayfair EDI integration for dropship and CastleGate suppliers
A guide for home goods suppliers connecting with Wayfair, covering dropship and CastleGate flows, inventory feeds, labeling and ERP integration.
Overview
Understanding Wayfair integration
Who this is for: Furniture, decor and home goods suppliers selling through Wayfair, either shipping directly to consumers or stocking Wayfair's CastleGate warehouses.
Wayfair sells products that suppliers typically ship directly to the consumer, which makes it one of the largest drop-ship programs in home goods. Suppliers receive orders from Wayfair, acknowledge them, ship to the customer and confirm the shipment, then invoice. Accurate inventory feeds are just as important, because Wayfair displays availability to shoppers and overselling leads to cancellations.
Wayfair also operates CastleGate, a warehouse network where suppliers send inventory in advance for Wayfair to fulfill. CastleGate suppliers exchange warehouse-oriented documents and follow different labeling and routing rules from drop-ship suppliers, so it is important to confirm which profile applies.
Wayfair's Partner Home portal is the supplier hub for orders, scorecards and EDI setup, while transactions themselves move over EDI or, for some suppliers, Wayfair's supplier APIs. Requirements should be confirmed in Partner Home before building.
Workflows
Typical Wayfair business workflows
Dropship to the consumer
- 1Receive 850 order
- 2Send 855 acknowledgment
- 3Ship to the customer
- 4Send 856 with tracking
- 5Send 810 invoice
Inventory availability
- 1Calculate available inventory
- 2Send 846 inventory feed
- 3Wayfair updates availability
- 4Monitor oversells
Documents and APIs
Common Wayfair transactions
Documents commonly exchanged with Wayfair, based on the public sources listed below. Exact requirements depend on your program, so always confirm against Wayfair's current implementation guide.
| Document | Name | Direction | Purpose |
|---|---|---|---|
| 850 | Purchase Order | From Wayfair | Wayfair sends a customer order for fulfillment. |
| 855 | Purchase Order Acknowledgment | To Wayfair | The supplier accepts or rejects the order. |
| 856 | Advance Ship Notice | To Wayfair | Confirms shipment with carrier and tracking details. |
| 810 | Invoice | To Wayfair | Bills Wayfair for the fulfilled order. |
| 846 | Inventory Inquiry/Advice | To Wayfair | Shares inventory available to sell. |
| 940 / 945 | Warehouse Shipping Order and Advice | Both directions | Used in CastleGate warehouse flows where applicable. |
Connectivity
How companies connect
AS2 SFTP or VAN
Third-party sources list AS2, SFTP and approved VAN connections for Wayfair EDI.
Partner Home
Wayfair's supplier portal handles orders, scorecards and EDI setup requests.
Supplier APIs
Some suppliers integrate through Wayfair's APIs for orders, inventory and pricing.
Challenges
Common integration challenges
Inventory accuracy
Stale inventory feeds cause oversells and cancellations that affect supplier standing.
Dropship versus CastleGate
The two programs use different documents, labels and routing rules.
Tracking in ship notices
Ship confirmations must include correct carrier and tracking details for each order.
How ECOM helps
How ECOM can support your Wayfair integration
Drop-Ship Automation
Automate Wayfair orders, confirmations, inventory feeds and invoices.
ProductPRISM-SCV
Monitor acknowledgments, late shipments and inventory feed failures.
ERP integration options
ECOM integrates Wayfair orders, inventory and invoices with your ERP and warehouse systems so availability stays accurate and orders flow straight to fulfillment.
Visibility and exception management
PRISM-SCV, ECOM's supply chain visibility product, is designed to follow each Wayfair document from receipt to response and flag late or missing documents and mismatches, so your team can resolve exceptions before they affect the relationship.
Explore PRISM-SCVWayfair integration FAQs
Which EDI documents does Wayfair use for dropship?
Third-party sources cite the 850, 855, 856, 810 and 846, with 997 acknowledgments. CastleGate suppliers may also use warehouse documents such as the 940 and 945.
Why does the inventory feed matter so much?
Wayfair shows availability to shoppers, so outdated inventory leads to orders that cannot be filled and cancellations that affect supplier performance.
Can suppliers use APIs instead of EDI?
Wayfair offers supplier APIs that some suppliers use for orders, inventory and pricing. Check Partner Home for current options.
Is ECOM a Wayfair partner?
This page is an integration guide and does not indicate a partnership with Wayfair. ECOM builds integrations to Wayfair's published requirements.
Sources and accuracy
This guide summarizes publicly available information as of October 2026. Wayfair sets its own requirements and can change them at any time; your Wayfair implementation guide, supplier portal or account contact is the authoritative source for your program.
- Endless Commerce, Wayfair EDI requirements Third-party source
- Pipe17, Wayfair EDI integration Third-party source
Wayfair is a trademark of its owner. Its mention does not imply endorsement of, or a partnership with, ECOM Specialist.
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Request Wayfair integration assistance
Tell us about your Wayfair program, documents and ERP. We will outline the connection, mapping and testing plan.