Extract line items, quantities, unit prices, delivery dates, and supplier details from purchase order documents.
Scanned 9/10/2026
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---
name: extract-purchase-order-data
description: Extract line items, quantities, unit prices, delivery dates, and supplier details from purchase order documents.
---
# Extract Purchase Order Data
B2B suppliers, procurement teams, and warehouse operators use this recipe to extract purchase order details at scale — pulling out line items, quantities, pricing, and delivery dates for ERP ingestion or order fulfillment workflows.
## APIs Used
Document Extraction (1 credit per page)
## Prerequisites
You need an Iteration Layer API key. Get one at [platform.iterationlayer.com](https://platform.iterationlayer.com) during the 7-day trial.
For full integration guidance (SDKs, auth, MCP, error handling), see the [Iteration Layer Integration Guide](https://iterationlayer.com/SKILL.md).
## Implementation
```bash
curl -X POST https://api.iterationlayer.com/document-extraction/v1/extract \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"files": [
{
"type": "url",
"name": "po-northstar-retail.pdf",
"url": "https://example.com/purchase-orders/po-northstar-retail.pdf"
}
],
"schema": {
"fields": [
{
"name": "customer_name",
"type": "TEXT",
"description": "Name of the customer or buying company"
},
{
"name": "po_number",
"type": "TEXT",
"description": "Purchase order number"
},
{
"name": "po_date",
"type": "DATE",
"description": "Date the PO was issued"
},
{
"name": "requested_delivery_date",
"type": "DATE",
"description": "Requested delivery date"
},
{
"name": "supplier_name",
"type": "TEXT",
"description": "Name of the supplier or vendor"
},
{
"name": "billing_address",
"type": "TEXT",
"description": "Customer billing address"
},
{
"name": "shipping_address",
"type": "TEXT",
"description": "Delivery address"
},
{
"name": "line_items",
"type": "ARRAY",
"description": "Individual line items on the purchase order",
"fields": [
{
"name": "product_sku",
"type": "TEXT",
"description": "Product SKU or item code"
},
{
"name": "product_name",
"type": "TEXT",
"description": "Product name or description"
},
{
"name": "quantity",
"type": "INTEGER",
"description": "Quantity ordered"
},
{
"name": "unit_price",
"type": "CURRENCY_AMOUNT",
"description": "Price per unit"
},
{
"name": "line_total",
"type": "CURRENCY_AMOUNT",
"description": "Total for this line item"
}
]
},
{
"name": "currency",
"type": "CURRENCY_CODE",
"description": "Order currency"
},
{
"name": "po_total",
"type": "CURRENCY_AMOUNT",
"description": "Total order value"
}
]
}
}'
```
```typescript
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });
const result = await client.extractDocument({
files: [
{
type: "url",
name: "po-northstar-retail.pdf",
url: "https://example.com/purchase-orders/po-northstar-retail.pdf",
},
],
schema: {
fields: [
{ name: "customer_name", type: "TEXT", description: "Name of the customer or buying company" },
{ name: "po_number", type: "TEXT", description: "Purchase order number" },
{ name: "po_date", type: "DATE", description: "Date the PO was issued" },
{ name: "requested_delivery_date", type: "DATE", description: "Requested delivery date" },
{ name: "supplier_name", type: "TEXT", description: "Name of the supplier or vendor" },
{ name: "billing_address", type: "TEXT", description: "Customer billing address" },
{ name: "shipping_address", type: "TEXT", description: "Delivery address" },
{
name: "line_items",
type: "ARRAY",
description: "Individual line items on the purchase order",
fields: [
{ name: "product_sku", type: "TEXT", description: "Product SKU or item code" },
{ name: "product_name", type: "TEXT", description: "Product name or description" },
{ name: "quantity", type: "INTEGER", description: "Quantity ordered" },
{ name: "unit_price", type: "CURRENCY_AMOUNT", description: "Price per unit" },
{ name: "line_total", type: "CURRENCY_AMOUNT", description: "Total for this line item" },
],
},
{ name: "currency", type: "CURRENCY_CODE", description: "Order currency" },
{ name: "po_total", type: "CURRENCY_AMOUNT", description: "Total order value" },
],
},
});
```
```python
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
result = client.extract_document(
files=[
{
"type": "url",
"name": "po-northstar-retail.pdf",
"url": "https://example.com/purchase-orders/po-northstar-retail.pdf",
}
],
schema={
"fields": [
{"name": "customer_name", "type": "TEXT", "description": "Name of the customer or buying company"},
{"name": "po_number", "type": "TEXT", "description": "Purchase order number"},
{"name": "po_date", "type": "DATE", "description": "Date the PO was issued"},
{"name": "requested_delivery_date", "type": "DATE", "description": "Requested delivery date"},
{"name": "supplier_name", "type": "TEXT", "description": "Name of the supplier or vendor"},
{"name": "billing_address", "type": "TEXT", "description": "Customer billing address"},
{"name": "shipping_address", "type": "TEXT", "description": "Delivery address"},
{
"name": "line_items",
"type": "ARRAY",
"description": "Individual line items on the purchase order",
"fields": [
{"name": "product_sku", "type": "TEXT", "description": "Product SKU or item code"},
{"name": "product_name", "type": "TEXT", "description": "Product name or description"},
{"name": "quantity", "type": "INTEGER", "description": "Quantity ordered"},
{"name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Price per unit"},
{"name": "line_total", "type": "CURRENCY_AMOUNT", "description": "Total for this line item"},
],
},
{"name": "currency", "type": "CURRENCY_CODE", "description": "Order currency"},
{"name": "po_total", "type": "CURRENCY_AMOUNT", "description": "Total order value"},
]
},
)
```
```go
package main
import il "github.com/iterationlayer/sdk-go"
func main() {
client := il.NewClient("YOUR_API_KEY")
result, err := client.ExtractDocument(il.ExtractDocumentRequest{
Files: []il.FileInput{
il.FileInput{
Type: "url",
Name: "po-northstar-retail.pdf",
Url: "https://example.com/purchase-orders/po-northstar-retail.pdf",
},
},
Schema: il.ExtractionSchema{
Fields: []any{
il.TextFieldConfig{
Name: "customer_name",
Type: "TEXT",
Description: "Name of the customer or buying company",
},
il.TextFieldConfig{
Name: "po_number",
Type: "TEXT",
Description: "Purchase order number",
},
il.DateFieldConfig{
Name: "po_date",
Type: "DATE",
Description: "Date the PO was issued",
},
il.DateFieldConfig{
Name: "requested_delivery_date",
Type: "DATE",
Description: "Requested delivery date",
},
il.TextFieldConfig{
Name: "supplier_name",
Type: "TEXT",
Description: "Name of the supplier or vendor",
},
il.TextFieldConfig{
Name: "billing_address",
Type: "TEXT",
Description: "Customer billing address",
},
il.TextFieldConfig{
Name: "shipping_address",
Type: "TEXT",
Description: "Delivery address",
},
il.ArrayFieldConfig{
Name: "line_items",
Type: "ARRAY",
Description: "Individual line items on the purchase order",
Fields: []any{
il.TextFieldConfig{
Name: "product_sku",
Type: "TEXT",
Description: "Product SKU or item code",
},
il.TextFieldConfig{
Name: "product_name",
Type: "TEXT",
Description: "Product name or description",
},
il.IntegerFieldConfig{
Name: "quantity",
Type: "INTEGER",
Description: "Quantity ordered",
},
il.CurrencyAmountFieldConfig{
Name: "unit_price",
Type: "CURRENCY_AMOUNT",
Description: "Price per unit",
},
il.CurrencyAmountFieldConfig{
Name: "line_total",
Type: "CURRENCY_AMOUNT",
Description: "Total for this line item",
},
},
},
il.CurrencyCodeFieldConfig{
Name: "currency",
Type: "CURRENCY_CODE",
Description: "Order currency",
},
il.CurrencyAmountFieldConfig{
Name: "po_total",
Type: "CURRENCY_AMOUNT",
Description: "Total order value",
},
},
},
})
if err != nil {
panic(err)
}
_ = result
}
```
```n8n
{
"name": "Extract purchase order data in Iteration Layer",
"nodes": [
{
"parameters": {
"content": "## Extract Purchase Order Data\n\nB2B suppliers, procurement teams, and warehouse operators use this recipe to extract purchase order details at scale — pulling out line items, quantities, pricing, and delivery dates for ERP ingestion or order fulfillment workflows.\n\n**Note:** This workflow uses the Iteration Layer community node (`n8n-nodes-iterationlayer`). Install it via Settings > Community Nodes on self-hosted n8n, or add it directly on n8n Cloud with Verified Community Nodes enabled.",
"height": 280,
"width": 500,
"color": 2
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [200, 40],
"id": "f3a4b5c6-d7e8-9012-fabc-789012345601",
"name": "Overview"
},
{
"parameters": {
"content": "### Step 1: Extract Purchase Order Data\nResource: **Document Extraction**\n\nConfigure the Document Extraction parameters below, then connect your credentials.",
"height": 160,
"width": 300,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [475, 100],
"id": "f3a4b5c6-d7e8-9012-fabc-789012345602",
"name": "Step 1 Note"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [250, 300],
"id": "f3a4b5c6-d7e8-9012-fabc-789012345603",
"name": "Manual Trigger"
},
{
"parameters": {
"resource": "documentExtraction",
"schemaInputMode": "rawJson",
"schemaJson": "{\"fields\":[{\"name\":\"customer_name\",\"type\":\"TEXT\",\"description\":\"Name of the customer or buying company\"},{\"name\":\"po_number\",\"type\":\"TEXT\",\"description\":\"Purchase order number\"},{\"name\":\"po_date\",\"type\":\"DATE\",\"description\":\"Date the PO was issued\"},{\"name\":\"requested_delivery_date\",\"type\":\"DATE\",\"description\":\"Requested delivery date\"},{\"name\":\"supplier_name\",\"type\":\"TEXT\",\"description\":\"Name of the supplier or vendor\"},{\"name\":\"billing_address\",\"type\":\"TEXT\",\"description\":\"Customer billing address\"},{\"name\":\"shipping_address\",\"type\":\"TEXT\",\"description\":\"Delivery address\"},{\"name\":\"line_items\",\"type\":\"ARRAY\",\"description\":\"Individual line items on the purchase order\",\"fields\":[{\"name\":\"product_sku\",\"type\":\"TEXT\",\"description\":\"Product SKU or item code\"},{\"name\":\"product_name\",\"type\":\"TEXT\",\"description\":\"Product name or description\"},{\"name\":\"quantity\",\"type\":\"INTEGER\",\"description\":\"Quantity ordered\"},{\"name\":\"unit_price\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Price per unit\"},{\"name\":\"line_total\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Total for this line item\"}]},{\"name\":\"currency\",\"type\":\"CURRENCY_CODE\",\"description\":\"Order currency\"},{\"name\":\"po_total\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Total order value\"}]}",
"files": {
"fileValues": [
{
"fileInputMode": "url",
"fileName": "po-northstar-retail.pdf",
"fileUrl": "https://example.com/purchase-orders/po-northstar-retail.pdf"
}
]
}
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [500, 300],
"id": "f3a4b5c6-d7e8-9012-fabc-789012345604",
"name": "Extract Purchase Order Data",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "Extract Purchase Order Data",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
```
```prompt
Extract purchase order data from the file at [file URL]. Use the extract_document tool with these fields:
- customer_name (TEXT): Name of the customer or buying company
- po_number (TEXT): Purchase order number
- po_date (DATE): Date the PO was issued
- requested_delivery_date (DATE): Requested delivery date
- supplier_name (TEXT): Name of the supplier or vendor
- billing_address (TEXT): Customer billing address
- shipping_address (TEXT): Delivery address
- line_items (ARRAY): Each with product_sku (TEXT), product_name (TEXT), quantity (INTEGER), unit_price (CURRENCY_AMOUNT), line_total (CURRENCY_AMOUNT)
- currency (CURRENCY_CODE): Order currency
- po_total (CURRENCY_AMOUNT): Total order value
```
### Response
```json
{
"success": true,
"data": {
"customer_name": {
"value": "Northstar Retail Group",
"confidence": 0.99,
"citations": ["Bill To: Northstar Retail Group"]
},
"po_number": {
"value": "PO-2026-0847",
"confidence": 0.99,
"citations": ["Purchase Order No: PO-2026-0847"]
},
"po_date": {
"value": "2026-03-18",
"confidence": 0.98,
"citations": ["Date: March 18, 2026"]
},
"requested_delivery_date": {
"value": "2026-04-15",
"confidence": 0.97,
"citations": ["Requested Delivery: April 15, 2026"]
},
"supplier_name": {
"value": "Meridian Manufacturing Co.",
"confidence": 0.99,
"citations": ["Vendor: Meridian Manufacturing Co."]
},
"billing_address": {
"value": "450 Commerce Drive, Suite 200, Chicago, IL 60601",
"confidence": 0.96,
"citations": ["Billing Address: 450 Commerce Drive, Suite 200, Chicago, IL 60601"]
},
"shipping_address": {
"value": "1200 Warehouse Lane, Dock 4, Indianapolis, IN 46204",
"confidence": 0.96,
"citations": ["Ship To: 1200 Warehouse Lane, Dock 4, Indianapolis, IN 46204"]
},
"line_items": {
"value": [
{
"product_sku": {
"value": "SFT-GL-200",
"confidence": 0.98,
"citations": ["SFT-GL-200"]
},
"product_name": {
"value": "Industrial Safety Gloves",
"confidence": 0.98,
"citations": ["Industrial Safety Gloves"]
},
"quantity": {
"value": 200,
"confidence": 0.99,
"citations": ["Qty: 200"]
},
"unit_price": {
"value": {
"amount": "4.50",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 4.50"]
},
"line_total": {
"value": {
"amount": "900.00",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 900.00"]
}
},
{
"product_sku": {
"value": "SFT-VS-150",
"confidence": 0.98,
"citations": ["SFT-VS-150"]
},
"product_name": {
"value": "High-Vis Safety Vests",
"confidence": 0.98,
"citations": ["High-Vis Safety Vests"]
},
"quantity": {
"value": 150,
"confidence": 0.99,
"citations": ["Qty: 150"]
},
"unit_price": {
"value": {
"amount": "12.00",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 12.00"]
},
"line_total": {
"value": {
"amount": "1800.00",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 1,800.00"]
}
},
{
"product_sku": {
"value": "SFT-BT-080",
"confidence": 0.98,
"citations": ["SFT-BT-080"]
},
"product_name": {
"value": "Steel-Toe Work Boots",
"confidence": 0.97,
"citations": ["Steel-Toe Work Boots"]
},
"quantity": {
"value": 80,
"confidence": 0.99,
"citations": ["Qty: 80"]
},
"unit_price": {
"value": {
"amount": "67.50",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 67.50"]
},
"line_total": {
"value": {
"amount": "5400.00",
"currency": "EUR"
},
"confidence": 0.98,
"citations": ["EUR 5,400.00"]
}
}
],
"confidence": 0.97,
"citations": ["Item table with 3 line items"]
},
"currency": {
"value": "EUR",
"confidence": 0.99,
"citations": ["Currency: EUR"]
},
"po_total": {
"value": {
"amount": "8100.00",
"currency": "EUR"
},
"confidence": 0.99,
"citations": ["Total: EUR 8,100.00"]
}
}
}
```
## Links
- [Integration guide](https://iterationlayer.com/SKILL.md)
- [Full documentation](https://iterationlayer.com/docs)
- [OpenAPI spec](https://api.iterationlayer.com/openapi.json)
- [Browse all recipes](https://iterationlayer.com/recipes)
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