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1-866-245-8100 EDI Compliance started in 1999 as an online retailer and services its customers worldwide. The company has roughly 1,500 employees. Overstock started out by selling surplus and returned merchandise but has expanded to selling new products as well.

EDI documents are communicated through a transmission method called AS/2 (Applicability Statement 2). The following EDI document types and labels are mandatory by Overstock and have been fully tested by CovalentWorks for exact compliance with Overstock’s EDI specifications. 

Quickly Become EDI Capable with » EDI Requirements

The ASN (Advance Shipping Notice) will contain comprehensive information about the packing of the products that are being sent to Overstock and as well as transportation information. For example, the gross weight, SCAC code, shipping date, and seller’s invoice number will be included in addition to data that comes from the purchase order.

Overstock uses the SOPI format for ASN’s. An SOPI (Shipment, Order, Pack (carton) and Item) ASN is also known as “Pick and Pack” because more than one type of item can be picked from the supplier’s shelves and packed into the same carton. Barcode Shipping Label Examples

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EDI Solution Comparison

Comparison Item




Web-based portal
Interfaces to other systems Optional
Complete turnkey solution: ✓*
GS1-128 bar code labels Optional
Web-based software
Works with 3PL
Phone and email support
Online help
Transaction mapping
Trading partner testing

All EDI Solutions Also Include:

Access from Anywhere

Unlimited number of users

No annual fee, no maintenance fee

No fee per EDI customer per month

Month to month agreement, no long-term contract

*IT support required during testing for B2BWorks.