EDI Reference

X12 EDI Transaction Set Reference

Plain-English explanations of every major EDI transaction set — key segments, workflow context, validation tips, and live examples.

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Retail, Distribution & Manufacturing

810 INV
Invoice
The EDI 810 Invoice is the electronic equivalent of a paper invoice. It is sent by the supplier to t…
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820 RA
Payment Order / Remittance Advice
The EDI 820 communicates payment instructions or remittance detail from the buyer to the supplier — …
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832 PSC
Price/Sales Catalog
The EDI 832 Price/Sales Catalog allows suppliers to distribute current pricing, item descriptions, a…
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846 INQ
Inventory Inquiry / Advice
The EDI 846 communicates inventory levels, stock availability, and warehouse locations. Retailers us…
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850 PO
Purchase Order
The 850 Purchase Order is the most widely used EDI transaction set. It allows buyers to electronical…
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855 POA
Purchase Order Acknowledgment
The 855 PO Acknowledgment is the supplier's response to an 850 Purchase Order. It confirms accepted,…
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856 ASN
Advance Ship Notice (ASN)
The EDI 856 Advance Ship Notice notifies the buyer that a shipment is on its way. It includes the ca…
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Logistics & Transportation

204 LT
Motor Carrier Load Tender
The EDI 204 Motor Carrier Load Tender is sent by a shipper or freight broker to a carrier to offer a…
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214 TSS
Transportation Carrier Shipment Status
The EDI 214 provides real-time shipment status updates from a carrier back to the shipper or broker.…
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Healthcare

Universal

997 FA
Functional Acknowledgment
The EDI 997 Functional Acknowledgment is a technical receipt confirming that an EDI interchange was …
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