# Extract Supplier Invoice For Erp > Extract supplier invoice details structured for direct import into ERP systems like SAP, Oracle, or Microsoft Dynamics. - Skill: `iterationlayer/extract-supplier-invoice-for-erp` (Agent Skill) - Install (CLI): `npx skillmds@latest add iterationlayer/extract-supplier-invoice-for-erp` - Raw SKILL.md: https://api.skillmd.com/api/skills/iterationlayer/extract-supplier-invoice-for-erp/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Finance & Business - Author: iterationlayer (https://skillmd.com/u/iterationlayer) - Updated: 2026-09-08 - Page: https://skillmd.com/skills/iterationlayer/extract-supplier-invoice-for-erp --- # Extract Supplier Invoice Data for ERP Import Finance agencies and outsourced AP teams use this recipe to process supplier invoices into structured data that maps directly to ERP import fields — vendor ID, GL codes, tax breakdowns, and payment terms — eliminating manual data entry. ## 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": "supplier-invoice-SI-8842.pdf", "url": "https://example.com/invoices/supplier-invoice-SI-8842.pdf" } ], "schema": { "fields": [ { "name": "vendor_name", "type": "TEXT", "description": "Supplier or vendor company name" }, { "name": "vendor_tax_id", "type": "TEXT", "description": "Vendor VAT or tax identification number" }, { "name": "vendor_iban", "type": "IBAN", "description": "Vendor bank account IBAN" }, { "name": "invoice_number", "type": "TEXT", "description": "Supplier invoice number" }, { "name": "invoice_date", "type": "DATE", "description": "Invoice issue date" }, { "name": "due_date", "type": "DATE", "description": "Payment due date" }, { "name": "payment_terms", "type": "TEXT", "description": "Payment terms, e.g. Net 30" }, { "name": "currency", "type": "CURRENCY_CODE", "description": "Invoice currency" }, { "name": "line_items", "type": "ARRAY", "description": "Invoice line items", "fields": [ { "name": "description", "type": "TEXT", "description": "Item or service description" }, { "name": "gl_code", "type": "TEXT", "description": "General ledger account code if present" }, { "name": "quantity", "type": "DECIMAL", "description": "Quantity" }, { "name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Unit price" }, { "name": "line_total", "type": "CURRENCY_AMOUNT", "description": "Line item total" } ] }, { "name": "subtotal", "type": "CURRENCY_AMOUNT", "description": "Subtotal before tax" }, { "name": "tax_amount", "type": "CURRENCY_AMOUNT", "description": "Total tax amount" }, { "name": "tax_rate", "type": "DECIMAL", "description": "Tax rate as a percentage" }, { "name": "total_amount", "type": "CURRENCY_AMOUNT", "description": "Total amount due" } ] } }' ``` ```typescript import { IterationLayer } from "iterationlayer"; const client = new IterationLayer({ apiKey: "YOUR_API_KEY" }); const result = await client.extractDocument({ files: [ { type: "url", name: "supplier-invoice-SI-8842.pdf", url: "https://example.com/invoices/supplier-invoice-SI-8842.pdf", }, ], schema: { fields: [ { name: "vendor_name", type: "TEXT", description: "Supplier or vendor company name" }, { name: "vendor_tax_id", type: "TEXT", description: "Vendor VAT or tax identification number" }, { name: "vendor_iban", type: "IBAN", description: "Vendor bank account IBAN" }, { name: "invoice_number", type: "TEXT", description: "Supplier invoice number" }, { name: "invoice_date", type: "DATE", description: "Invoice issue date" }, { name: "due_date", type: "DATE", description: "Payment due date" }, { name: "payment_terms", type: "TEXT", description: "Payment terms, e.g. Net 30" }, { name: "currency", type: "CURRENCY_CODE", description: "Invoice currency" }, { name: "line_items", type: "ARRAY", description: "Invoice line items", fields: [ { name: "description", type: "TEXT", description: "Item or service description" }, { name: "gl_code", type: "TEXT", description: "General ledger account code if present" }, { name: "quantity", type: "DECIMAL", description: "Quantity" }, { name: "unit_price", type: "CURRENCY_AMOUNT", description: "Unit price" }, { name: "line_total", type: "CURRENCY_AMOUNT", description: "Line item total" }, ], }, { name: "subtotal", type: "CURRENCY_AMOUNT", description: "Subtotal before tax" }, { name: "tax_amount", type: "CURRENCY_AMOUNT", description: "Total tax amount" }, { name: "tax_rate", type: "DECIMAL", description: "Tax rate as a percentage" }, { name: "total_amount", type: "CURRENCY_AMOUNT", description: "Total amount due" }, ], }, }); ``` ```python from iterationlayer import IterationLayer client = IterationLayer(api_key="YOUR_API_KEY") result = client.extract_document( files=[ { "type": "url", "name": "supplier-invoice-SI-8842.pdf", "url": "https://example.com/invoices/supplier-invoice-SI-8842.pdf", } ], schema={ "fields": [ {"name": "vendor_name", "type": "TEXT", "description": "Supplier or vendor company name"}, {"name": "vendor_tax_id", "type": "TEXT", "description": "Vendor VAT or tax identification number"}, {"name": "vendor_iban", "type": "IBAN", "description": "Vendor bank account IBAN"}, {"name": "invoice_number", "type": "TEXT", "description": "Supplier invoice number"}, {"name": "invoice_date", "type": "DATE", "description": "Invoice issue date"}, {"name": "due_date", "type": "DATE", "description": "Payment due date"}, {"name": "payment_terms", "type": "TEXT", "description": "Payment terms, e.g. Net 30"}, {"name": "currency", "type": "CURRENCY_CODE", "description": "Invoice currency"}, { "name": "line_items", "type": "ARRAY", "description": "Invoice line items", "fields": [ {"name": "description", "type": "TEXT", "description": "Item or service description"}, {"name": "gl_code", "type": "TEXT", "description": "General ledger account code if present"}, {"name": "quantity", "type": "DECIMAL", "description": "Quantity"}, {"name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Unit price"}, {"name": "line_total", "type": "CURRENCY_AMOUNT", "description": "Line item total"}, ], }, {"name": "subtotal", "type": "CURRENCY_AMOUNT", "description": "Subtotal before tax"}, {"name": "tax_amount", "type": "CURRENCY_AMOUNT", "description": "Total tax amount"}, {"name": "tax_rate", "type": "DECIMAL", "description": "Tax rate as a percentage"}, {"name": "total_amount", "type": "CURRENCY_AMOUNT", "description": "Total amount due"}, ] }, ) ``` ```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: "supplier-invoice-SI-8842.pdf", Url: "https://example.com/invoices/supplier-invoice-SI-8842.pdf", }, }, Schema: il.ExtractionSchema{ Fields: []any{ il.TextFieldConfig{ Name: "vendor_name", Type: "TEXT", Description: "Supplier or vendor company name", }, il.TextFieldConfig{ Name: "vendor_tax_id", Type: "TEXT", Description: "Vendor VAT or tax identification number", }, il.IbanFieldConfig{ Name: "vendor_iban", Type: "IBAN", Description: "Vendor bank account IBAN", }, il.TextFieldConfig{ Name: "invoice_number", Type: "TEXT", Description: "Supplier invoice number", }, il.DateFieldConfig{ Name: "invoice_date", Type: "DATE", Description: "Invoice issue date", }, il.DateFieldConfig{ Name: "due_date", Type: "DATE", Description: "Payment due date", }, il.TextFieldConfig{ Name: "payment_terms", Type: "TEXT", Description: "Payment terms, e.g. Net 30", }, il.CurrencyCodeFieldConfig{ Name: "currency", Type: "CURRENCY_CODE", Description: "Invoice currency", }, il.ArrayFieldConfig{ Name: "line_items", Type: "ARRAY", Description: "Invoice line items", Fields: []any{ il.TextFieldConfig{ Name: "description", Type: "TEXT", Description: "Item or service description", }, il.TextFieldConfig{ Name: "gl_code", Type: "TEXT", Description: "General ledger account code if present", }, il.DecimalFieldConfig{ Name: "quantity", Type: "DECIMAL", Description: "Quantity", }, il.CurrencyAmountFieldConfig{ Name: "unit_price", Type: "CURRENCY_AMOUNT", Description: "Unit price", }, il.CurrencyAmountFieldConfig{ Name: "line_total", Type: "CURRENCY_AMOUNT", Description: "Line item total", }, }, }, il.CurrencyAmountFieldConfig{ Name: "subtotal", Type: "CURRENCY_AMOUNT", Description: "Subtotal before tax", }, il.CurrencyAmountFieldConfig{ Name: "tax_amount", Type: "CURRENCY_AMOUNT", Description: "Total tax amount", }, il.DecimalFieldConfig{ Name: "tax_rate", Type: "DECIMAL", Description: "Tax rate as a percentage", }, il.CurrencyAmountFieldConfig{ Name: "total_amount", Type: "CURRENCY_AMOUNT", Description: "Total amount due", }, }, }, }) if err != nil { panic(err) } _ = result } ``` ```n8n { "name": "Extract supplier invoice data for ERP import in Iteration Layer", "nodes": [ { "parameters": { "content": "## Extract Supplier Invoice Data for ERP Import\n\nFinance agencies and outsourced AP teams use this recipe to process supplier invoices into structured data that maps directly to ERP import fields — vendor ID, GL codes, tax breakdowns, and payment terms — eliminating manual data entry.\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": "a7b8c9d0-e1f2-3456-abcd-456789012301", "name": "Overview" }, { "parameters": { "content": "### Step 1: Extract Invoice 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": "a7b8c9d0-e1f2-3456-abcd-456789012302", "name": "Step 1 Note" }, { "parameters": {}, "type": "n8n-nodes-base.manualTrigger", "typeVersion": 1, "position": [ 250, 300 ], "id": "a7b8c9d0-e1f2-3456-abcd-456789012303", "name": "Manual Trigger" }, { "parameters": { "resource": "documentExtraction", "schemaInputMode": "rawJson", "schemaJson": "{\"fields\":[{\"name\":\"vendor_name\",\"type\":\"TEXT\",\"description\":\"Supplier or vendor company name\"},{\"name\":\"vendor_tax_id\",\"type\":\"TEXT\",\"description\":\"Vendor VAT or tax identification number\"},{\"name\":\"vendor_iban\",\"type\":\"IBAN\",\"description\":\"Vendor bank account IBAN\"},{\"name\":\"invoice_number\",\"type\":\"TEXT\",\"description\":\"Supplier invoice number\"},{\"name\":\"invoice_date\",\"type\":\"DATE\",\"description\":\"Invoice issue date\"},{\"name\":\"due_date\",\"type\":\"DATE\",\"description\":\"Payment due date\"},{\"name\":\"payment_terms\",\"type\":\"TEXT\",\"description\":\"Payment terms\"},{\"name\":\"currency\",\"type\":\"CURRENCY_CODE\",\"description\":\"Invoice currency\"},{\"name\":\"line_items\",\"type\":\"ARRAY\",\"description\":\"Invoice line items\",\"fields\":[{\"name\":\"description\",\"type\":\"TEXT\",\"description\":\"Item or service description\"},{\"name\":\"gl_code\",\"type\":\"TEXT\",\"description\":\"General ledger account code\"},{\"name\":\"quantity\",\"type\":\"DECIMAL\",\"description\":\"Quantity\"},{\"name\":\"unit_price\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Unit price\"},{\"name\":\"line_total\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Line item total\"}]},{\"name\":\"subtotal\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Subtotal before tax\"},{\"name\":\"tax_amount\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Total tax amount\"},{\"name\":\"tax_rate\",\"type\":\"DECIMAL\",\"description\":\"Tax rate as a percentage\"},{\"name\":\"total_amount\",\"type\":\"CURRENCY_AMOUNT\",\"description\":\"Total amount due\"}]}", "files": { "fileValues": [ { "fileInputMode": "url", "fileName": "supplier-invoice-SI-8842.pdf", "fileUrl": "https://example.com/invoices/supplier-invoice-SI-8842.pdf" } ] } }, "type": "n8n-nodes-iterationlayer.iterationLayer", "typeVersion": 1, "position": [ 500, 300 ], "id": "a7b8c9d0-e1f2-3456-abcd-456789012304", "name": "Extract Invoice Data", "credentials": { "iterationLayerApi": { "id": "1", "name": "Iteration Layer API" } } } ], "connections": { "Manual Trigger": { "main": [ [ { "node": "Extract Invoice Data", "type": "main", "index": 0 } ] ] } }, "settings": { "executionOrder": "v1" } } ``` ```prompt Extract supplier invoice data for ERP import from the file at [file URL]. Use the extract_document tool with these fields: - vendor_name (TEXT): Supplier or vendor company name - vendor_tax_id (TEXT): Vendor VAT or tax identification number - vendor_iban (IBAN): Vendor bank account IBAN - invoice_number (TEXT): Supplier invoice number - invoice_date (DATE): Invoice issue date - due_date (DATE): Payment due date - payment_terms (TEXT): Payment terms, e.g. Net 30 - currency (CURRENCY_CODE): Invoice currency - line_items (ARRAY): Each with description (TEXT), gl_code (TEXT), quantity (DECIMAL), unit_price (CURRENCY_AMOUNT), line_total (CURRENCY_AMOUNT) - subtotal (CURRENCY_AMOUNT): Subtotal before tax - tax_amount (CURRENCY_AMOUNT): Total tax amount - tax_rate (DECIMAL): Tax rate as a percentage - total_amount (CURRENCY_AMOUNT): Total amount due ``` ### Response ```json { "success": true, "data": { "vendor_name": { "value": "Brenner Industrial Supply GmbH", "confidence": 0.98, "citations": [ "Brenner Industrial Supply GmbH" ] }, "vendor_tax_id": { "value": "DE298374561", "confidence": 0.97, "citations": [ "USt-IdNr.: DE298374561" ] }, "vendor_iban": { "value": "DE89370400440532013000", "confidence": 0.96, "citations": [ "IBAN: DE89 3704 0044 0532 0130 00" ] }, "invoice_number": { "value": "SI-8842", "confidence": 0.99, "citations": [ "Rechnung Nr. SI-8842" ] }, "invoice_date": { "value": "2026-03-20", "confidence": 0.98, "citations": [ "Datum: 20.03.2026" ] }, "due_date": { "value": "2026-04-19", "confidence": 0.97, "citations": [ "Zahlungsziel: 19.04.2026" ] }, "payment_terms": { "value": "Net 30", "confidence": 0.95, "citations": [ "Zahlungsbedingungen: 30 Tage netto" ] }, "currency": { "value": "EUR", "confidence": 0.99, "citations": [ "EUR" ] }, "line_items": { "value": [ { "description": { "value": "Hydraulic press maintenance kit", "confidence": 0.96, "citations": [ "Hydraulic press maintenance kit" ] }, "gl_code": { "value": "6200", "confidence": 0.88, "citations": [ "Konto 6200" ] }, "quantity": { "value": 2.0, "confidence": 0.98, "citations": [ "Menge: 2" ] }, "unit_price": { "value": { "amount": "340.00", "currency": "EUR" }, "confidence": 0.97, "citations": [ "340,00 EUR" ] }, "line_total": { "value": { "amount": "680.00", "currency": "EUR" }, "confidence": 0.97, "citations": [ "680,00 EUR" ] } } ], "confidence": 0.96, "citations": [] }, "subtotal": { "value": { "amount": "680.00", "currency": "EUR" }, "confidence": 0.97, "citations": [ "Nettobetrag: 680,00 EUR" ] }, "tax_amount": { "value": { "amount": "129.20", "currency": "EUR" }, "confidence": 0.97, "citations": [ "MwSt. 19%: 129,20 EUR" ] }, "tax_rate": { "value": 19.0, "confidence": 0.98, "citations": [ "19%" ] }, "total_amount": { "value": { "amount": "809.20", "currency": "EUR" }, "confidence": 0.98, "citations": [ "Gesamtbetrag: 809,20 EUR" ] } } } ``` ## 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)