EDI Transaction Directory
Every transaction set includes its business purpose, envelope structure, an interactive example, mapping guidance, validation rules, and common errors.
X12
About X12 →ANSI ASC X12 — the dominant EDI standard in North America.
Purchase Order
The X12 850 is the electronic purchase order a buyer sends to a supplier to request goods or services, replacing paper or PDF POs with a structured, machine-readable document.
Purchase Order Acknowledgment
The X12 855 is the supplier's formal response to an 850 Purchase Order, confirming, changing, backordering, or rejecting each line item.
Advance Ship Notice
The X12 856 (ASN) tells the buyer exactly what was shipped, how it was packed (pallet/case/item hierarchy), and when it will arrive — before the truck reaches the dock.
Invoice
The X12 810 is the electronic invoice a supplier sends after (or with) a shipment, billing the buyer for goods or services delivered.
Payment Order/Remittance Advice
The X12 820 instructs a financial institution to make a payment and/or advises the payee which invoices a payment covers.
Warehouse Shipping Order
The X12 940 instructs a third-party warehouse to pick, pack, and ship a specific order on behalf of the merchandise owner.
Warehouse Shipping Advice
The X12 945 is the warehouse's confirmation back to the merchandise owner that a 940 shipping order was picked, packed, and shipped.
Functional Acknowledgment
The X12 997 confirms that an interchange was received and whether it passed structural (syntax) validation — it does not confirm business acceptance of the content.
Transportation Carrier Shipment Status Message
The X12 214 provides in-transit status updates (pickup, in-transit, delivered, exception) for a freight shipment.
Motor Carrier Load Tender
The X12 204 is a shipper's offer (tender) of a freight load to a carrier, specifying origin, destination, equipment, and commodity details.
Healthcare (HIPAA X12)
About Healthcare (HIPAA X12) →Mandated transactions for eligibility, claims, and remittance.
Eligibility, Coverage or Benefit Inquiry
The HIPAA X12 270 is a request from a healthcare provider to a payer asking whether a patient has active insurance coverage and what benefits apply.
Eligibility, Coverage or Benefit Information
The HIPAA X12 271 is the payer's response to a 270 inquiry, detailing whether the patient is covered and describing plan benefits, copays, and limitations.
Health Care Claim Status Request
The HIPAA X12 276 asks a payer for the current processing status of a previously submitted health care claim.
Health Care Claim Status Response
The HIPAA X12 277 is the payer's answer to a 276, reporting where a claim stands in adjudication.
Health Care Services Review – Request/Response
The HIPAA X12 278 requests prior authorization or a referral for a health care service, and carries the payer's determination.
Benefit Enrollment and Maintenance
The HIPAA X12 834 communicates enrollment, changes, and terminations of health plan coverage from an employer or sponsor to a payer.
Health Care Claim Payment/Advice
The HIPAA X12 835 explains how a payer adjudicated a claim — what was paid, denied, or adjusted, and why — while optionally carrying the actual payment.
Health Care Claim
The HIPAA X12 837 is the electronic claim a provider submits to a payer to request payment for services rendered (professional, institutional, or dental).
EDIFACT
About EDIFACT →The international EDI standard used across Europe and global trade.
Purchase Order Message
UN/EDIFACT ORDERS is the international equivalent of the X12 850 — a structured purchase order used widely across Europe and global trade lanes.
Purchase Order Response Message
UN/EDIFACT ORDRSP is the supplier's response to an ORDERS message, confirming, amending, or rejecting the purchase order — the EDIFACT counterpart to the X12 855.
Despatch Advice Message
UN/EDIFACT DESADV is the international equivalent of the X12 856 Advance Ship Notice, describing what was shipped and how it is packed.
Receiving Advice Message
UN/EDIFACT RECADV reports what a buyer actually received at their dock, allowing the supplier to reconcile shipped versus received quantities.
Invoice Message
UN/EDIFACT INVOIC is the electronic invoice message, the EDIFACT counterpart to the X12 810, used to bill for goods or services delivered.
Instruction Message
UN/EDIFACT IFTMIN conveys transport instructions from a shipper or forwarder to a carrier, specifying what needs to be moved, how, and by when.
International Multimodal Status Report Message
UN/EDIFACT IFTSTA reports shipment status and milestones across a transport chain, the EDIFACT counterpart to the X12 214.
Forwarding and Consolidation Summary Message
UN/EDIFACT IFCSUM summarizes consolidated shipments — multiple individual consignments grouped into a single transport unit — for freight forwarders.
Customs Declaration Message
UN/EDIFACT CUSDEC is used to submit customs declarations for imported or exported goods to a customs authority.