EDI 850, 856, 810 — What These Document Numbers Actually Mean

EDI transaction sets are identified by three-digit numbers. Here are the ones you'll encounter most as a retail supplier: **850 — Purchase Order**: Sent by the retailer to you when they want to buy goods. **855 — PO Acknowledgment**: Your response to confirm you've received and accepted the order. **856 — Advance Ship Notice (ASN)**: Sent by you when goods ship, detailing exactly what's in each carton. **810 — Invoice**: Your request for payment. **997 — Functional Acknowledgment**: An automated receipt confirming a document was received. Missing or malformed documents cause chargebacks. EDIPlug monitors all of these automatically.