Chewy EDI Requirements: What Vendors Need to Know in 2026

Selling through Chewy can open strong growth opportunities for pet brands, but meeting Chewy’s electronic data interchange (EDI) requirements takes more than a basic setup. Vendors need to know which EDI documents apply, how Chewy handles relationships between vendor types, and where EDI compliance issues can interrupt order processing, fulfillment, or payment. 

Details matter because Chewy’s requirements aren’t the same for every vendor. Wholesale suppliers typically follow one setup path, while dropship vendors must follow another. This article explains the Chewy EDI documents vendors need and how a modern EDI system can help your company stay compliant with Chewy requirements before going live.

What EDI Documents Does Chewy Require?

Chewy EDI documents support each stage of the order lifecycle, from the first purchase order to fulfillment confirmation and invoicing. Vendors should confirm their exact requirements with Chewy before implementation, as the required EDI transactions can vary by program type, setup path, and fulfillment model.

Core Chewy EDI Documents

The five core Chewy EDI documents cover the main order processing workflow:

• 850 purchase order: Chewy sends the EDI 850 to place an order with the vendor.

• 855 purchase order acknowledgment: The vendor sends the EDI 855 to confirm whether the order can be accepted, rejected, or accepted with changes.

• 856 advance ship notice (ASN): The vendor sends the EDI 856 to share shipment details before delivery, including quantities, carton information, and tracking data.

• 810 invoice: The vendor sends the EDI 810 to request payment after products are shipped.

• 852 product activity data: The EDI 852 supports product activity reporting and related data exchange. 

The 997 functional acknowledgment is also important, even when it’s classified outside the core set. It confirms whether an EDI document was received and helps both sides identify rejected or failed transactions before they create downstream issues.

Advanced EDI Documents for Inventory and Analytics

Chewy may also support advanced EDI documents for vendors with broader inventory, analytics, or operational needs. These can include the EDI 870 order status report, EDI 832 price/sales catalog, and EDI 846 inventory inquiry/advice. These documents aren’t always part of the initial setup, but they can help vendors maintain better visibility as order volume grows or additional data-exchange requirements arise.

What's the Difference Between Chewy Wholesale and Dropship EDI Requirements?

Chewy EDI requirements depend on how the vendor sells and fulfills orders. A wholesale supplier shipping bulk orders into Chewy’s network won’t follow the same setup path as a dropship vendor sending individual orders directly to customers. Before building maps or testing documents, vendors should confirm whether they operate under a wholesale or dropship model.

Wholesale Chewy EDI Setup

Wholesale vendors typically follow Chewy’s direct vendor setup process. In this model, Chewy sends purchase orders to the supplier's system. The supplier confirms the retail order, ships the product according to Chewy’s routing and fulfillment expectations, and submits the invoice for payment. The vendor’s EDI integration needs to support the required Chewy EDI documents for this workflow, including accurate purchase order acknowledgment, advance ship notice, and invoice data.

Chewy Dropship EDI via Rithum

Chewy dropship EDI follows a different path. Chewy partners with Rithum Commerce Suite, formerly DSCO, to manage dropship order exchange. For dropship vendors, EDI transactions flow through Rithum rather than directly through Chewy’s standard wholesale setup. This distinction matters because dropship sellers may have different fulfillment expectations, testing steps, and technical requirements than wholesale suppliers.

EDI Version Requirements: Why X12 5010 Matters

Chewy EDI requirements can also include specific version rules, which matter during mapping and testing. For 850 purchase order files, Chewy requires X12 version 5010. Vendors coming from an older EDI system may already have maps built for another version, but those maps can create errors if segment structure, required fields, or data formats don’t match Chewy’s requirements. Even when the document type is correct, the wrong version can cause test failures, rejected EDI transactions, or additional rework before the connection goes live. 

These issues can slow order processing and make it harder for teams to maintain full visibility across incoming retail orders. That’s why teams should review version requirements before connecting their enterprise applications, accounting software, warehouse management system (WMS), or other internal tools. Confirming the correct version early can save time during initial setup and reduce the risk of rejected purchase orders once real-time EDI transactions begin. 

How the Chewy Vendor Onboarding Process Works

Chewy vendor onboarding for EDI begins before live orders start. Vendors need to complete the required business setup steps, confirm the correct selling model, and test their EDI integration before exchanging production data. The exact process can vary by vendor type, but most Chewy onboarding workflows include a few core steps.

• Company information: Vendors provide basic company details so Chewy can create or update the supplier profile.

• Ordering information: Wholesale vendors may need to provide ordering details that support purchase order routing and fulfillment. This step may not apply the same way to dropship vendors.

• Banking information: Vendors submit payment details so the retailer can process invoices correctly after orders ship.

• E-sign documents: Chewy may require vendors to complete electronic agreements before fully approving the account.

• Integration testing: Vendors test and validate required EDI documents before go-live to confirm that purchase orders, acknowledgments, ASNs, invoices, and related transactions move correctly between systems.

Testing and validation are critical onboarding steps because they give teams a chance to find issues before they affect retail orders.

What Causes Compliance Failures with Chewy?

Chewy vendor EDI compliance depends on more than sending the right documents. Vendors also need accurate transaction data that matches Chewy’s formatting, fulfillment, and shipping expectations. When those details are missing or inconsistent, products may not move smoothly through the supply chain, and vendors may experience failed testing, delayed order processing, rejected invoices, or costly chargebacks.

• Incorrect EDI maps: Data mapping for the 850, 856, and 810 needs to match Chewy’s required fields and business rules. Generic maps from another retailer may not carry the right data.

• ASN errors: Chewy 856 ASN requirements can include shipment details such as quantities, carton information, tracking data, and timing. Missing or inaccurate ASN data can create receiving problems and delay payment.

• Noncompliant pack slips: Generic pack slips may not meet Chewy’s labeling or presentation requirements, especially for dropship orders.

• Unsupported address types: Some EDI orders may fail if the vendor’s system can’t process the address format or destination type required for fulfillment.

• Manual errors: Manual data entry increases the risk of human error, often leading to mismatches in quantities, incorrect item details, or missing invoice information.

Teams can reduce these risks by testing the full workflow before launch instead of validating each document in isolation. That means confirming that purchase orders, acknowledgments, ASNs, invoices, and related responses move correctly through the entire EDI process.

Managing Chewy EDI Integration Across Retail Trading Partners

Chewy EDI integration is only one part of meeting trading partner standards across a growing retail network. Many pet brands also need to manage EDI requirements for PetSmart, Petco, Target, Amazon, and other major retailers — each with its own documents, testing rules, and fulfillment expectations. That work becomes harder when teams rely on separate portals, disconnected EDI services, or manual work to keep transactions moving.

With the right EDI solution in place, your team can streamline onboarding, reduce manual data entry, support real-time data exchange, and maintain better visibility as retail operations grow. 

Orderful’s API-driven Mosaic platform helps suppliers manage EDI through a single connection across Chewy and other trading partners. For organizations that need a faster path to partner compliance, Orderful’s Pixel EDI solution can also support a more guided setup experience. 

Chewy EDI FAQs

What EDI documents does Chewy require for vendors?

Chewy EDI documents typically include the EDI 850 purchase order, EDI 855 purchase order acknowledgment, EDI 856 advance ship notice, EDI 810 invoice, and EDI 852 product activity data. Vendors may also need to support acknowledgments, such as the EDI 997, along with additional EDI transactions depending on their setup and fulfillment model.

Does Chewy dropship EDI go through Rithum?

Yes, Chewy dropship EDI generally goes through Rithum Commerce Suite, formerly DSCO. Dropship vendors don’t follow the same EDI setup path as wholesale suppliers because orders flow through the dropship program. Suppliers should confirm their requirements with Chewy or Rithum before building maps, testing documents, or exchanging production data.

How can vendors avoid Chewy EDI compliance issues?

Vendors can reduce compliance issues by confirming they are sending the correct documents, using the required EDI version, testing the full order workflow, and reviewing ASN, invoice, pack slip, and address requirements before going live. Accurate data mapping also helps prevent manual errors that can lead to rejected EDI orders, delayed payment, and costly chargebacks.