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EDI · Flat
Tender freight with United Delivery Service.
United Delivery Service is part of a growing network of EDI-enabled trading partners. Stacksync connects your ERP directly to United Delivery Service's EDI requirements — handling document mapping, validation, and delivery automatically. Go live in days with no-code setup and built-in compliance monitoring.
Adopted by fast-scaling companies moving mission-critical data in real time
Custom integration
United Delivery Service EDI — built to your spec.
We don't ship a catalog for United Delivery Service yet, but Stacksync supports custom EDI integrations. Tell us the document types you need (850, 856, 810, custom mappings…) and we'll wire up your workflow.
Tell us about your United Delivery Service EDIHow it works
Three steps to live United Delivery Service EDI.
Stacksync handles the complexity of United Delivery Service EDI so your team doesn't have to. Connect your ERP, WMS, or database through a simple API — we translate, validate, and deliver every transaction automatically.
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Connect your systems
Plug Stacksync into your ERP, WMS, or database with a no-code connector. We handle authentication, schema discovery, and field mapping.
- 02
Map to United Delivery Service guidelines
We ship pre-built mappings for every United Delivery Service document type. Override any field, add custom validation, or extend with custom code.
- 03
Send & receive in real time
Stacksync translates, validates, and delivers every transaction over AS2, SFTP, or API. Watch every document flow live in the dashboard.
Why Stacksync
Built for EDI suppliers — not enterprise legacy.
From pre-built United Delivery Service mappings to real-time compliance checks, Stacksync removes the friction from EDI — so you can focus on growing your business.
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Pre-built mappings
Stacksync ships native mappings for every United Delivery Service document type. No more 6-week field-mapping projects.
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Real-time monitoring
Every transaction shows up in the dashboard the second it lands — with retry, revert, and replay built in.
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No vendor lock-in
Your data lives in your ERP/WMS/database. Stacksync is the translation layer, not the system of record.
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Days, not months
Most United Delivery Service suppliers go live in under a week. We migrate from SPS Commerce, TrueCommerce, Cleo and IBM Sterling.
Stuck with a legacy EDI vendor? We'll buy your way out.
Stacksync buys back your current contract with SPS Commerce, Cleo, TrueCommerce, or OpenText. No strings. No catch.
Check your eligibility for the EDI migration fundSecurity teams love Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer.
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Trading partners
5,000+ trading partners.
And every channel covered.
We connect to every major retailer, distributor, and 3PL on the EDI network. Type to search the directory, or browse the full catalogue.
Amazon 
Target 
Walmart 
JCPenney 
The Home Depot 
Costco 
NEXCOM (Navy Exchange Service Command) 
Rivian Automotive, Inc 
Dillard's Department Stores, Inc. 
Dow Inc. 
Dot Foods, Inc. 
Granite City Electric 
Google 
Kroger Modernized Systems 
Shoe Carnival 
Sprouts Farmers Market 
Williams Sonoma 
Nordstrom 
Kroger 
Boscov's Department Stores 
Core 
HEB (Here Everything's Better) 
KeHE Distributors 
Starbucks Coffee Company 
Staples Inc. 
United Natural Foods, Inc. (UNFI) 
Macy's 
AAFES (Army and Air Force Exchange Service) 
Aldi 
Americold Logistics, LLC. 
ASUSTeK Computer Inc. (dba ASUS) 
John Deere 
John Deere Mexico 
Jordan's Furniture 
MSC Industrial Supply Co. 
NLS (National Logistics Services) 
PetSmart 
Sportsman's Warehouse 
Ventura Foods 
Wayfair LLC 
White Cap 
CVS 
7 
Albertsons (Safeway) 
AT&T Inc. 
Ashley Furniture Industries, LLC 
Bealls Inc. 
Big Lots 
Border States 
Canadian Tire Corporation 
Cardinal Health, Inc. 
Dick's Sporting Goods 
Fanatics 
Ford Motor Company 
QVC Group (dba Cornerstone Brands Inc) 
Shadow [Internal] [Network Team] 
Loblaw Companies Limited 
Master Electronics 
MidwayUSA 
Nebraska Furniture Mart (NFM) 
PFG Customized Distribution 
PFG PerformanceFoodservice North 
Saks Fifth Avenue & Saks OFF 5th 
Sportsman's Guide 
Superior Communications 
Sysco 
Thrive Market 
Lowe's 
Chewy 
Crescent Electric Supply Company 
Walgreens 
Ace Hardware 
Academy Sports + Outdoors 
AGCO Your Agriculture Company 
Al's Sporting Goods 
Cencora (ASD Health Care) (formerly AmerisourceBergen) 
Backcountry.com 
Associated Wholesale Grocers (AWG) 
Bloomingdale's 
Bluestem Brands 
Browns Shoe Fit Company 
Buc 
Cavender's 
Burlington Coat Factory 
Camping World 
Canadian National Railway 
Canadian Pacific Railway 
Cabela's 
Cole Haan 
Crate & Barrel 
Do It Best Hardware 
DSW Inc. 
Fastenal 
Evereve.com 
Family Farm & Home, Inc. 
Ferguson Enterprises Inc. 
Harbor Foods 
HD Supply Holdings, Inc. 
Indigo Books & Music Inc. 
J.H. Larson Company 
Jerome's Furniture 
Joann Stores 
Kirkland's, Inc. 
Mathis Home 
McLane Company, Inc. 
Meijer 
Mattress Firm (via SPS Commerce) 
Mountain High Outfitters 
Neiman Marcus 
Niagara Bottling 
Orgill, Inc. 
Beyond, Inc. (fka Overstock.com) 
PriceSmart 
Quaker Oats Company (A Pepsico Company) 
Rally House 
RJW Logistics, LLC 
Road Runner Sports 
Scheels All Sports, Inc. 
Sheplers 
Stater Bros. Markets 
Ulta Beauty 
Wakefern 
Worldwide Golf Shops 
Best Buy 
American Signature, Inc. 
BabyList 
BASF 
BASS PRO DSCO 
Belk 
Berrios 
Bison Office 
BioCare, Inc. 
BJ's Wholesale Club 
Big 5 Sporting Goods 
BlackHawk Industrial Distribution Inc 
Boot Barn Holdings 
BrandX 
Cardi's Furniture & Mattresses 
Central Supply Company 
Cheney Brothers, Inc. 
EVO 
Expeditors 
ExpertVoice 
DSW (formerly Shoes.com) 
FootLocker 
Gardner 
Global Industrial Company 
Glen's Army Navy (Glen's Outdoors) 
GNC 
GovX Inc. 
Grainger 
Harbor Foodservice 
HD Supply (via Logicbroker) 
Haynes Furniture 
Houzz 
iHerb, LLC 
Hub Group \ Unyson 
Home Furniture LA 
Ingram Micro 
John V. Schultz Furniture & Mattress 
Joy 
Klopfenstein Home Rooms 
Kroger Manufacturing 
Fred Meyer Group 
Lipari Foods 
LL Bean Organization 
Leslies Poolmart Inc. 
Lippert 
Living Spaces 
MARQUEE 
Mast General Store, Inc. 
Lumens, Inc. 
Marchon Eyewear 
McGee & Co. 
Menards 
MEC Mountain Equipment Company Ltd 
Men's Wearhouse via DSCO 
Missouri Furniture 
Nicholas And Company 
Murdoch's Ranch and Home Supply 
Nexemo (via Logicbroker) 
Ocean State Job Lot 
Ollie's Bargain Outlet 
Optics Planet 
Performance Food Group (PFG) 
Peltz Shoes 
PGA Tour Superstore 
Rehlko 
Rite Aid 
Raymour & Flanigan 
Quebec Health Ministry 
Rona 
Rooms To Go 
SAIL 
Sephora 
Shopbop (BOP LLC) 
Shamrock Foods 
Shoe Carnival Drop Ship 
Sleep Country Canada Holdings, Inc. 
Starboard Cruise Services Inc. FAQ
United Delivery Service EDI questions
What is United Delivery Service EDI?
United Delivery Service accepts EDI for 0 document types across 0 channels. Trading partners use EDI to exchange purchase orders, invoices, shipping notices, and acknowledgements with United Delivery Service programmatically — Stacksync handles the entire EDI exchange, validation, and translation into your ERP, WMS, or database.
Which EDI standards does United Delivery Service use?
United Delivery Service uses EDI. Stacksync supports both X12 (the dominant North American standard) and EDIFACT (the dominant European and global shipping standard) for every connected trading partner. Channel-specific implementation guidelines from United Delivery Service are pre-built into the Stacksync connector and validated on every outbound transaction.
Which transaction codes does United Delivery Service support?
United Delivery Service document types are being onboarded. Contact the Stacksync team to confirm which transaction codes you need and Stacksync will prioritize them in the next sprint.
How long does United Delivery Service EDI integration take with Stacksync?
Most United Delivery Service EDI integrations go live in 3 to 10 business days. The Stacksync team handles partner enrolment, channel certification, transaction-set mapping per United Delivery Service's implementation guide, and end-to-end testing. Complex multi-channel deployments or custom transaction sets take 2 to 4 weeks. Cutover is zero-downtime and parallel-run validated.
