Public sources reviewed 2026-08-12
What the public record confirms
- Costco's public supplier pages describe supplier intake and make clear that an application does not guarantee a business relationship.
- The reviewed public pages do not publish a universal Costco EDI document set, transport, version, or certification timeline.
- A Costco buyer invitation and current supplier materials are required before treating any transaction or field as mandatory.
What documents they require
No universal Costco EDI set was found on the reviewed public supplier pages. Use this as a discovery checklist and accept only the flows named by your buyer: Exact specifications come from your partner packet. Treat this as a planning checklist, not a substitute for the current implementation guide.
- Purchase order — confirm format, identifiers, changes, and acknowledgement expectations document guide →
- Shipment notice — confirm whether required and capture label, hierarchy, and timing rules document guide →
- Invoice — confirm PO/receipt matching fields, adjustments, and submission method document guide →
- Acknowledgements and errors — confirm response timing and the escalation owner document guide →
Connectivity and testing requirements
Connectivity
Confirm whether the current Costco program uses AS2, SFTP, VAN, or another named transport.
Planning range
Costco-controlled; no public fixed timeline
Certification focus
Do not estimate certification from third-party templates. The Costco buyer relationship, issued technical guide, testing access, and written approval define the real path.
Questions to resolve from the current buyer packet
- Obtain the buyer-issued supplier number, onboarding contact, and current EDI or portal instructions.
- Confirm purchase-order, acknowledgement, shipment, invoice, label, and receiving requirements for the assigned program.
- Record version, identifiers, transport, test cases, exception contacts, and written production approval.
How SignalEDI handles it
- Turn the current buyer-issued implementation guide into a versioned mapping and testing checklist.
- Validate synthetic or scrubbed 850, 855, 856, and 810 samples before the buyer-controlled certification step.
- Connect accepted order, shipment, and invoice data to supported QuickBooks or API workflows without re-keying it.
Review mapping and validation in the self-serve workspace before partner testing. Developer quickstart
Pricing
SignalEDI publishes flat monthly EDI pricing: Seasonal $99, Starter $199, Growth $499, and Enterprise $1999 per month. There are no standard per-document fees. Finite plans alert you before the included monthly allowance is reached and pause new processing at the allowance until you upgrade; Enterprise is unlimited.
Compare current plansAuthoritative sources
Source review date: 2026-08-12. Links below establish only the facts described; your current buyer-issued materials remain authoritative for program-specific technical requirements.
- Costco vendor inquiries — Costco Wholesale
Supports: Official supplier inquiry entry point.
- Costco supplier intake information — Costco Wholesale
Supports: Supplier intake scope and the statement that application does not guarantee partnership.
FAQ
- What EDI documents does Costco typically require?
- No universal Costco EDI set was found on the reviewed public supplier pages. Use this as a discovery checklist and accept only the flows named by your buyer: Typical sets include: Purchase order — confirm format, identifiers, changes, and acknowledgement expectations; Shipment notice — confirm whether required and capture label, hierarchy, and timing rules; Invoice — confirm PO/receipt matching fields, adjustments, and submission method; Acknowledgements and errors — confirm response timing and the escalation owner Exact specs vary by commodity and program — always confirm against your trading partner packet.
- How long does Costco EDI onboarding usually take?
- Many suppliers land in about Costco-controlled; no public fixed timeline, but timelines vary by category, testing waves, and exception cycles. Do not estimate certification from third-party templates. The Costco buyer relationship, issued technical guide, testing access, and written approval define the real path.
- How does SignalEDI help without hiring a full EDI team?
- Turn the current buyer-issued implementation guide into a versioned mapping and testing checklist. Validate synthetic or scrubbed 850, 855, 856, and 810 samples before the buyer-controlled certification step. Connect accepted order, shipment, and invoice data to supported QuickBooks or API workflows without re-keying it.
- Where can I see SignalEDI pricing?
- SignalEDI publishes flat monthly EDI pricing: Seasonal $99, Starter $199, Growth $499, and Enterprise $1999 per month. There are no standard per-document fees. Finite plans alert you before the included monthly allowance is reached and pause new processing at the allowance until you upgrade; Enterprise is unlimited.
Related EDI resources
- Customer requires EDI guide turns the buyer packet into a scoped implementation checklist.
- QuickBooks EDI integration can turn supported Costco documents into reviewable QuickBooks drafts without re-keying.
- Managed EDI onboarding is an optional paid path when your team wants help coordinating the scoped partner workflow.
- Walmart EDI requirements covers publicly documented supplier interfaces and buyer-packet boundaries for Walmart programs.
- EDI requirements checker drafts a local readiness checklist without saving buyer data.
Prepare your side for partner testing
SignalEDI can validate the documents and requirements your team controls. Partner approval follows the partner's schedule.
Connect nowTopics: Costco EDI · Costco supplier EDI · Costco wholesale EDI