コロンビア領 Invoice 処理
これはFinance, AI分野の自動化ワークフローで、23個のノードを含みます。主にXml, Code, Merge, Filter, Switchなどのノードを使用、AI技術を活用したスマート自動化を実現。 Gmail、GPT-4o、Google Workspaceを使用してコロンビアのインボイスを抽出し、整理する
- •Google Drive API認証情報
- •Googleアカウント + Gmail API認証情報
- •Google Sheets API認証情報
- •OpenAI API Key
使用ノード (23)
{
"id": "Xs7x61YMFsbpB4vg",
"meta": {
"instanceId": "51270372ea87f40bc06437a6d111ae29e684e524a2e6c52d7a6f84dde18d4a17",
"templateCredsSetupCompleted": true
},
"name": "Colombian Invoices Processing",
"tags": [],
"nodes": [
{
"id": "3bcb9b75-a697-4948-974a-f4ea29947bfa",
"name": "ループ処理",
"type": "n8n-nodes-base.splitInBatches",
"position": [
880,
445
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "03076b82-d824-4fe1-b659-7fbfa2f3fd87",
"name": "OpenAI チャットモデル",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
2420,
790
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "BfhecJBx32L0a2gT",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "201ae476-d189-4ba7-9a96-6f272b95795d",
"name": "計算機",
"type": "@n8n/n8n-nodes-langchain.toolCalculator",
"position": [
2540,
790
],
"parameters": {},
"typeVersion": 1
},
{
"id": "9aca7e2d-af43-4de6-aa07-2e880d660d20",
"name": "構造化出力パーサー",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
2660,
790
],
"parameters": {
"jsonSchemaExample": "{\n \"Tipo\": \"Factura\",\n \"Numero_Factura\": \"FAC-2025-00123\",\n \"Fecha_Emision\": \"2025-05-07\",\n \"CUFE\": \"f4a6c8b03e1e4e8b90f9e3e2945d8b23c5b4e2fa\",\n \"NIT_Emisor\": \"900123456\",\n \"Razon_Social_Emisor\": \"Comercializadora XYZ S.A.S.\",\n \"NIT_Receptor\": \"1012345678\",\n \"Valor_Antes_Impuesto\": 1000000,\n \"Impuesto\": 190000,\n \"Total\": 1190000,\n \"Resumen_Compra\": \"Compra de equipos de oficina incluyendo escritorios y sillas ejecutivas\"\n}"
},
"typeVersion": 1.2
},
{
"id": "7793086c-b1f7-49f7-b67a-77721087fea5",
"name": "On メール receipt",
"type": "n8n-nodes-base.gmailTrigger",
"notes": "Executed every 30 minutes as it's for personal invoices, one can wait",
"position": [
0,
445
],
"parameters": {
"simple": false,
"filters": {
"q": "has:attachment filename:zip"
},
"options": {
"downloadAttachments": true
},
"pollTimes": {
"item": [
{
"mode": "everyX",
"unit": "minutes",
"value": 30
}
]
}
},
"credentials": {
"gmailOAuth2": {
"id": "DIVionghQwRFOcIe",
"name": "Gmail account"
}
},
"notesInFlow": false,
"typeVersion": 1.2
},
{
"id": "97460873-8220-476b-97e7-cf433be3f9cd",
"name": "Get Filename and mimeType",
"type": "n8n-nodes-base.code",
"position": [
220,
445
],
"parameters": {
"jsCode": "let results = [];\n\nfor (item of items) {\n for (key of Object.keys(item.binary)) {\n results.push({\n json: {\n fileName: item.binary[key].fileName,\n mimeType: item.binary[key].mimeType,\n },\n binary: {\n data: item.binary[key],\n }\n });\n }\n}\n\nreturn results;"
},
"typeVersion": 2
},
{
"id": "e01cdfc7-c343-444e-a6ca-57b2139c3b6e",
"name": "フィルター ZIP files only",
"type": "n8n-nodes-base.filter",
"position": [
440,
445
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "ccb7942e-8cef-480c-98a4-b5b68d98a235",
"operator": {
"type": "string",
"operation": "endsWith"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "zip"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "855b3a55-5d2e-4da1-aef7-76bf559da876",
"name": "Unzip Invoice",
"type": "n8n-nodes-base.compression",
"position": [
660,
445
],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "c48abfc9-dff9-49ef-bb59-212f2f1eb472",
"name": "Just for style",
"type": "n8n-nodes-base.noOp",
"position": [
1100,
270
],
"parameters": {},
"typeVersion": 1
},
{
"id": "b84984d5-f736-40be-b0b5-2d0a245c79a6",
"name": "Get filename and mimeType on extracted docs",
"type": "n8n-nodes-base.code",
"position": [
1100,
470
],
"parameters": {
"jsCode": "let results = [];\n\nfor (item of items) {\n for (key of Object.keys(item.binary)) {\n results.push({\n json: {\n fileName: item.binary[key].fileName,\n mimeType: item.binary[key].mimeType,\n },\n binary: {\n data: item.binary[key],\n }\n });\n }\n}\n\nreturn results;"
},
"typeVersion": 2
},
{
"id": "9ff8e500-8135-4960-81f5-fbc0945d45db",
"name": "Split XML and PDF",
"type": "n8n-nodes-base.switch",
"position": [
1320,
470
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "pdf",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "69784ebe-7edd-4e50-89c3-8440a662f25a",
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "pdf"
}
]
},
"renameOutput": true
},
{
"outputKey": "xml",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "90f50e8d-bd72-4fdf-b854-e473b117377a",
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "xml"
}
]
},
"renameOutput": true
}
]
},
"options": {
"fallbackOutput": "none"
}
},
"typeVersion": 3.2
},
{
"id": "1132645b-9270-4581-9707-59bec4ee2417",
"name": "Extract PDF Data",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1760,
445
],
"parameters": {
"options": {
"joinPages": true
},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "215b29f9-0e0a-4989-a6d3-65faa5941729",
"name": "Extract XML Data",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1540,
645
],
"parameters": {
"options": {},
"operation": "xml"
},
"typeVersion": 1
},
{
"id": "7fa1555e-11ae-4fca-b526-52d2b4a1773e",
"name": "Convert to JSON",
"type": "n8n-nodes-base.xml",
"position": [
1760,
645
],
"parameters": {
"options": {}
},
"typeVersion": 1
},
{
"id": "cb581772-cb26-4d36-b1b9-c290f5a0a4ea",
"name": "Append both Docs",
"type": "n8n-nodes-base.merge",
"position": [
1980,
570
],
"parameters": {},
"typeVersion": 3.1
},
{
"id": "225b6fd6-4cfd-43d7-9c3e-fe20d97831d7",
"name": "集計 all Data into 1 list",
"type": "n8n-nodes-base.aggregate",
"position": [
2200,
580
],
"parameters": {
"options": {},
"aggregate": "aggregateAllItemData"
},
"typeVersion": 1
},
{
"id": "947001a4-bcdc-4421-bdce-07d41fc85c88",
"name": "Extract Data from PDF and XML",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
2452,
570
],
"parameters": {
"text": "=PDF:\n{{ $json.data[0].text }}\n\nXML: \n{{ $json.data[1].AttachedDocument['cac:Attachment']['cac:ExternalReference']['cbc:Description'] }}",
"options": {
"systemMessage": "=Extrae del PDF y el XML proporcionados la siguiente información:\n\t•\tTipo: Factura o Nota Crédito\n\t•\tNúmero de factura\n\t•\tFecha de emisión (formato: YYYY-MM-DD)\n\t•\tNIT del emisor (sin dígito de verificación, solo los números antes del guion)\n\t•\tNIT del receptor (sin dígito de verificación)\n\t•\tRazón social del emisor\n\t•\tValor antes de IVA\n\t•\tValor del IVA\n\t•\tValor total de la factura\n\t•\tCUFE\n\t•\tResumen de la compra (máximo 20 palabras, describiendo en términos generales qué se compró, usando solo mayúsculas donde corresponda gramaticalmente. Ejemplo: “CONSULTA DE PRIMERA VEZ POR OPTOMETRIA” → “Consulta de primera vez por optometría”)\n\nVerifica que:\nValor total = Valor antes de IVA + Valor del IVA, usando la herramienta Calculator."
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.9
},
{
"id": "3eb86ff2-7a4b-4e17-af92-057b715fd69d",
"name": "Create initial PDF",
"type": "n8n-nodes-base.googleDrive",
"position": [
2530,
220
],
"parameters": {
"name": "={{ $json.fileName }}",
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "1v0sqvMCFAN02WzXdTuoYF8KGw7Y0Tmf1",
"cachedResultUrl": "https://drive.google.com/drive/folders/xxxxxxx",
"cachedResultName": "Facturas"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "UeBZlmzBxNp4aScN",
"name": "Google Drive account"
}
},
"typeVersion": 3
},
{
"id": "cbe7bcf2-972b-4110-8d1c-075fcc34497a",
"name": "マージ both flows",
"type": "n8n-nodes-base.merge",
"position": [
2860,
495
],
"parameters": {
"mode": "combine",
"options": {},
"combineBy": "combineAll"
},
"typeVersion": 3.1
},
{
"id": "14243355-766d-425d-90d1-6f114903636a",
"name": "Update PDF with actual name",
"type": "n8n-nodes-base.googleDrive",
"position": [
3080,
495
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "update",
"changeFileContent": "",
"newUpdatedFileName": "={{ $json.output.Fecha_Emision }}-{{ $json.output.Numero_Factura }}.pdf"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "UeBZlmzBxNp4aScN",
"name": "Google Drive account"
}
},
"typeVersion": 3
},
{
"id": "aa623454-553a-4b95-b320-964c68dd7555",
"name": "Get Current Date",
"type": "n8n-nodes-base.code",
"notes": "Not in use actually...",
"position": [
3300,
495
],
"parameters": {
"jsCode": "const now = new Date();\n\n// Get Colombia time values\nconst options = { timeZone: 'America/Bogota', year: 'numeric', month: '2-digit', day: '2-digit' };\nconst formatter = new Intl.DateTimeFormat('en-CA', options); // en-CA gives YYYY-MM-DD format\nconst [year, month, day] = formatter.format(now).split('-');\n\nreturn [\n {\n json: {\n year,\n month,\n day\n }\n }\n];"
},
"typeVersion": 2
},
{
"id": "466a2885-adba-41ce-8a51-8c36db58a113",
"name": "Create or update row",
"type": "n8n-nodes-base.googleSheets",
"position": [
3520,
620
],
"parameters": {
"columns": {
"value": {
"Key": "={{ $('Merge both flows').item.json.output.NIT_Emisor }}-{{ $('Merge both flows').item.json.output.Numero_Factura }}",
"CUFE": "={{ $('Merge both flows').item.json.output.CUFE }}",
"Tipo": "={{ $('Merge both flows').item.json.output.Tipo }}",
"Fecha": "={{ $('Merge both flows').item.json.output.Fecha_Emision }}",
"Total": "={{ $('Merge both flows').item.json.output.Total }}",
"Factura": "={{ $('Extract Data from PDF and XML').item.json.output.Numero_Factura }}",
"Impuesto": "={{ $('Merge both flows').item.json.output.Impuesto }}",
"Subtotal": "={{ $('Merge both flows').item.json.output.Valor_Antes_Impuesto }}",
"NIT Emisor": "={{ $('Merge both flows').item.json.output.NIT_Emisor }}",
"NIT Receptor": "={{ $('Merge both flows').item.json.output.NIT_Receptor }}",
"Razón Social": "={{ $('Merge both flows').item.json.output.Razon_Social_Emisor }}",
"Resumen Compra": "={{ $('Merge both flows').item.json.output.Resumen_Compra }}"
},
"schema": [
{
"id": "Factura",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Factura",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Tipo",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Tipo",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Key",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Key",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Fecha",
"type": "string",
"display": true,
"required": false,
"displayName": "Fecha",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Razón Social",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Razón Social",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "NIT Emisor",
"type": "string",
"display": true,
"required": false,
"displayName": "NIT Emisor",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "NIT Receptor",
"type": "string",
"display": true,
"required": false,
"displayName": "NIT Receptor",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Subtotal",
"type": "string",
"display": true,
"required": false,
"displayName": "Subtotal",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Impuesto",
"type": "string",
"display": true,
"required": false,
"displayName": "Impuesto",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Total",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Total",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "CUFE",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "CUFE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Resumen Compra",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Resumen Compra",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"Key"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "appendOrUpdate",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/xxxxx/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1HmtB_MXS7oOJn86V3dcBjLdvnw3aWLkD36avc147zuI",
"cachedResultUrl": "https://docs.google.com/spreadsheets/xxxxx/edit?usp=drivesdk",
"cachedResultName": "Facturas"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "phQyVnZ7ZojxewDR",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "e7076c9e-1998-4aab-bb43-9d9f89a3377f",
"name": "付箋",
"type": "n8n-nodes-base.stickyNote",
"position": [
-60,
-480
],
"parameters": {
"width": 960,
"height": 880,
"content": "# 🧾 Colombian electronic invoices processing\n\nThis N8N workflow automates the extraction and organization of **personal electronic invoices** in Colombia received via **Gmail**. It includes the following key steps:\n\n## 🔁 Flow Summary\n\n1. **Email Trigger**\n - Polls Gmail every **30 minutes** for emails with `.zip` attachments (assumed to contain invoices).\n - Following DIAN requirements in Colombia\n\n2. **ZIP File Handling**\n - Extracts all files.\n - Filters only **PDF** and **XML** files for processing.\n\n3. **Data Extraction & Processing**\n - Uses **LangChain Agent + OpenAI (GPT-4o-mini)** to extract:\n - Tipo de documento (Factura / Nota Crédito)\n - Número de factura\n - Fecha de emisión (YYYY-MM-DD)\n - NIT emisor y receptor (sin dígito de verificación)\n - Razón social del emisor\n - Subtotal, IVA, Total\n - CUFE\n - Resumen de compra (max 20 words, formatted sentence)\n\n4. **Validation**\n - Ensures **Total = Subtotal + IVA** using a calculator node.\n\n5. **Storage**\n - Uploads the original PDF to **Google Drive**.\n - Renames the file to: `YYYY-MM-DD-NUMERO_FACTURA.pdf`.\n - Inserts or updates invoice details in **Google Sheets** using a unique `Key` (`NIT_Emisor + Numero_Factura`) to prevent duplication.\n\n---\n\n> ⚙️ Designed for personal use with minimal latency tolerance and high automation reliability."
},
"typeVersion": 1
}
],
"active": true,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "fefb527f-7457-46bc-a80c-ca290b163bce",
"connections": {
"Calculator": {
"ai_tool": [
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"index": 0
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]
},
"855b3a55-5d2e-4da1-aef7-76bf559da876": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"7fa1555e-11ae-4fca-b526-52d2b4a1773e": {
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]
]
},
"Loop Over Items": {
"main": [
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{
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}
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}
]
]
},
"cb581772-cb26-4d36-b1b9-c290f5a0a4ea": {
"main": [
[
{
"node": "Aggregate all Data into 1 list",
"type": "main",
"index": 0
}
]
]
},
"1132645b-9270-4581-9707-59bec4ee2417": {
"main": [
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"aa623454-553a-4b95-b320-964c68dd7555": {
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{
"node": "466a2885-adba-41ce-8a51-8c36db58a113",
"type": "main",
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}
]
]
},
"Merge both flows": {
"main": [
[
{
"node": "14243355-766d-425d-90d1-6f114903636a",
"type": "main",
"index": 0
}
]
]
},
"On Email receipt": {
"main": [
[
{
"node": "97460873-8220-476b-97e7-cf433be3f9cd",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
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"type": "ai_languageModel",
"index": 0
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]
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},
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"3eb86ff2-7a4b-4e17-af92-057b715fd69d": {
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},
"466a2885-adba-41ce-8a51-8c36db58a113": {
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{
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"type": "main",
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}
]
]
},
"Filter ZIP files only": {
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{
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"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "947001a4-bcdc-4421-bdce-07d41fc85c88",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"97460873-8220-476b-97e7-cf433be3f9cd": {
"main": [
[
{
"node": "Filter ZIP files only",
"type": "main",
"index": 0
}
]
]
},
"14243355-766d-425d-90d1-6f114903636a": {
"main": [
[
{
"node": "aa623454-553a-4b95-b320-964c68dd7555",
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"index": 0
}
]
]
},
"947001a4-bcdc-4421-bdce-07d41fc85c88": {
"main": [
[
{
"node": "Merge both flows",
"type": "main",
"index": 1
}
]
]
},
"Aggregate all Data into 1 list": {
"main": [
[
{
"node": "947001a4-bcdc-4421-bdce-07d41fc85c88",
"type": "main",
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]
},
"b84984d5-f736-40be-b0b5-2d0a245c79a6": {
"main": [
[
{
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}このワークフローの使い方は?
上記のJSON設定コードをコピーし、n8nインスタンスで新しいワークフローを作成して「JSONからインポート」を選択、設定を貼り付けて認証情報を必要に応じて変更してください。
このワークフローはどんな場面に適していますか?
上級 - 財務, 人工知能
有料ですか?
このワークフローは完全無料です。ただし、ワークフローで使用するサードパーティサービス(OpenAI APIなど)は別途料金が発生する場合があります。
関連ワークフロー
Juan Sanchez
@juansaveExperienced cloud solutions professional with a strong focus on Microsoft technologies, including Microsoft 365, Azure, Entra, and the Power Platform. Skilled in designing and implementing automation using Power Automate and PowerShell. Proven track record in sales, marketing, and delivering managed services for cloud environments. Passionate about digital transformation, AI integration, and streamlining business processes through low-code platforms.
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