Purchase Order Acknowledgment
Your 'got it' — confirm, change, or reject each line of the PO.
The 855 tells the retailer you received their 850 and what you intend to do with each line: accept it, accept with changes (price, quantity, date), or reject it. Many retailers require an 855 within a set window and expect you to acknowledge every line on the PO.
BAK03 must echo the original PO number. Acknowledge every line (one ACK per PO1) or expect a compliance flag.
Key segments
Related documents
The order itself — what the retailer wants, how much, at what price, ship where.
856 Advance Ship Notice (ASN)What's on the truck — the pack hierarchy, SSCC carton labels, and ship date.
810 InvoiceThe bill — line prices and totals that must reconcile to the PO and the shipment.
Got a real 855? See if it'd pass.
Inspect it segment-by-segment, or score it against a retailer's rules — free.