Send an EDI 850 purchase order via API

What is an EDI 850?

The 850 Purchase Order is the most common retail EDI document. SignalEDI accepts JSON that maps to your partner's X12 850 implementation guide.

• See /documents/850 for segment-level reference
• Partner profiles control mandatory loops and qualifiers

POST request

Pass partnerId, documentTypeCode 850, and a payload with purchase order fields. SignalEDI validates and translates to X12 before routing.

curl -X POST https://api.signaledi.com/api/v1/documents/outbound \
  -H "Authorization: Bearer $SIGNALEDI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "partnerId": "your-partner-id",
  "documentTypeCode": "850",
  "payload": {
    "purchaseOrderNumber": "PO-1042",
    "shipTo": {
      "id": "DC-01",
      "name": "RetailMart DC 01"
    },
    "lines": [
      {
        "lineNumber": 1,
        "sku": "SKU-100",
        "quantity": 24,
        "unitPrice": 12.5
      }
    ]
  }
}'

Node and Python

Same outbound call in application code — store SIGNALEDI_API_KEY and partnerId in environment variables.

const res = await fetch("https://api.signaledi.com/api/v1/documents/outbound", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.SIGNALEDI_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    partnerId: "your-partner-id",
    documentTypeCode: "850",
    payload: {
      purchaseOrderNumber: "PO-1042",
      shipTo: { id: "DC-01", name: "RetailMart DC 01" },
      lines: [{ lineNumber: 1, sku: "SKU-100", quantity: 24, unitPrice: 12.5 }],
    },
  }),
});
const data = await res.json(); // { ok: true, data: { documentId, status: "queued" } }

import os
import requests

r = requests.post(
    "https://api.signaledi.com/api/v1/documents/outbound",
    headers={"Authorization": f"Bearer {os.environ['SIGNALEDI_API_KEY']}"},
    json={
        "partnerId": "your-partner-id",
        "documentTypeCode": "850",
        "payload": {
            "purchaseOrderNumber": "PO-1042",
            "shipTo": {"id": "DC-01", "name": "RetailMart DC 01"},
            "lines": [{"lineNumber": 1, "sku": "SKU-100", "quantity": 24, "unitPrice": 12.5}],
        },
    },
)
print(r.json())

Validation errors

Missing required fields return 400 with fieldErrors. Mapping violations after enqueue surface as document.error webhooks with fixable field paths.

• Example 400: { "fieldErrors": { "partnerId": "Required" } }

{
  "ok": true,
  "data": {
    "documentId": "doc_01HXYZ…",
    "status": "queued"
  }
}