EDI Reference / 860
860

Purchase Order Change

Retailer → Supplier

The retailer changing an existing PO — new quantities, dates, or cancellations.

The 860 modifies a PO you've already received: change a quantity, move a date, add or cancel a line. It references the original PO so both sides stay in sync. You typically respond with an 865 to accept or reject the change.

⚠ Where it bites

Process 860s before you ship — shipping the old quantities after a change causes overage/shortage chargebacks.

Key segments

ISA GS ST BCH REF DTM POC CTT SE GE IEA

Related documents

850 Purchase Order

The order itself — what the retailer wants, how much, at what price, ship where.

 865 PO Change Acknowledgment

Your response to an 860 — accept or reject the retailer's change.

Got a real 860? See if it'd pass.

Inspect it segment-by-segment, or score it against a retailer's rules — free.

Inspect an X12 Readiness Check