Costco EDI integration and automation

Overview

Understanding Costco integration

Who this is for: Manufacturers and brands supplying Costco warehouses and depots, and the EDI, logistics and finance teams that support them.

Costco moves high volumes of a relatively small number of items through a network of depots and warehouses, and EDI keeps that model running. For most suppliers, the core documents are the purchase order from Costco, the advance ship notice describing each shipment, the invoice, and functional acknowledgments. Some programs also use purchase order acknowledgments, order changes or inventory documents.

Costco's depot and cross-dock operations make shipment data especially important. Third-party guides consistently describe the ship notice as the most compliance-sensitive document, because depots plan receiving and cross-docking around it, and they stress that carton and pallet labels must match the ship notice. Invoices are expected to reconcile with the purchase order and the shipment.

Third-party sources describe testing before production and note that some suppliers onboard through an EDI provider designated for Costco. Because Costco's implementation guide defines the exact versions, segments and testing steps, suppliers should treat that guide, obtained through Costco's supplier channels, as the authoritative reference.