Jitesh Dugar This workflow corresponds to n8n.io template #10588 — we link there as the canonical source.
This workflow follows the Gmail → Google Drive recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "9d642cd1-88d1-4bc2-9ef6-2b570db71ce5",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1552,
-784
],
"parameters": {
"width": 400,
"height": 796,
"content": "## How it works\n\nThis workflow generates professional invoices instantly when triggered by payment gateways, CRM systems, or forms. It validates invoice data, auto-generates unique invoice numbers, calculates line items and taxes, adds your company branding and bank details, creates a PDF with payment status badge (Paid/Unpaid/Partial), archives it to Google Drive, and emails it to the customer. Team notifications route through Slack based on payment status\u2014paid invoices get success alerts while unpaid/partial invoices get reminders with due dates for collections follow-up.\n\n## Setup steps\n\n1. **Configure webhook** - Connect from your payment system (Stripe/PayPal), CRM, or form tool\n2. **Customize company data** - Edit branding, bank details, and tax IDs in \"Enrich with Company Data\" node\n3. **Set tax rates** - Adjust default tax percentage in \"Validate Invoice Data\" node (currently 18%)\n4. **Add HTML to PDF API** - Get key at htmlcsstoimage.com (1-5\u00a2 per invoice)\n5. **Connect Google Drive** - Authenticate for invoice archival\n6. **Connect Gmail** - Authenticate for customer email delivery\n7. **Add Slack webhooks** - Get URLs from Slack for both notification nodes\n8. **Test with sample data** before connecting live payment system\n\n\ud83d\udca1 **Required data:** customerName, customerEmail, items array (description, quantity, rate), paymentStatus (paid/unpaid/partial)"
},
"typeVersion": 1
},
{
"id": "c14e603f-a354-4d88-acf1-9add2a915a6c",
"name": "Webhook Trigger",
"type": "n8n-nodes-base.webhook",
"position": [
-944,
-80
],
"parameters": {
"path": "invoice-generator",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 1
},
{
"id": "7d53dd09-7f7f-4d00-8d13-f53892f61223",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-944,
-240
],
"parameters": {
"color": 7,
"width": 588,
"height": 384,
"content": "## Data Processing\n\nReceives invoice data, validates required fields, auto-generates invoice numbers, calculates line items/subtotals/taxes, adds company branding and bank details, then creates professional HTML with payment status badge and itemized pricing."
},
"typeVersion": 1
},
{
"id": "969158b3-3974-4206-a232-f52304683a09",
"name": "Validate Invoice Data",
"type": "n8n-nodes-base.code",
"position": [
-784,
-32
],
"parameters": {
"jsCode": "// Validate incoming invoice data\nconst item = $input.first().json;\n\n// Required fields validation\nconst requiredFields = ['customerName', 'customerEmail', 'items', 'paymentStatus'];\nconst missingFields = requiredFields.filter(field => !item[field] || (typeof item[field] === 'string' && item[field].trim() === ''));\n\n// Validate items array\nif (!item.items || !Array.isArray(item.items) || item.items.length === 0) {\n missingFields.push('items (must be array with at least one item)');\n}\n\nif (missingFields.length > 0) {\n throw new Error(`Missing required fields: ${missingFields.join(', ')}`);\n}\n\n// Validate email format\nconst emailRegex = /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/;\nif (!emailRegex.test(item.customerEmail)) {\n throw new Error('Invalid email format for customerEmail');\n}\n\n// Validate payment status\nconst validStatuses = ['paid', 'unpaid', 'partial'];\nif (!validStatuses.includes(item.paymentStatus.toLowerCase())) {\n throw new Error('Invalid paymentStatus. Must be: paid, unpaid, or partial');\n}\n\n// Validate and calculate items\nfor (let i = 0; i < item.items.length; i++) {\n const lineItem = item.items[i];\n if (!lineItem.description || !lineItem.quantity || !lineItem.rate) {\n throw new Error(`Item ${i + 1} missing required fields (description, quantity, rate)`);\n }\n \n // Ensure numeric values\n lineItem.quantity = parseFloat(lineItem.quantity);\n lineItem.rate = parseFloat(lineItem.rate);\n \n // Calculate amount\n item.items[i].amount = lineItem.quantity * lineItem.rate;\n}\n\n// Generate invoice number if not provided\nif (!item.invoiceNumber) {\n const date = new Date();\n const year = date.getFullYear();\n const month = String(date.getMonth() + 1).padStart(2, '0');\n const random = Math.floor(Math.random() * 10000).toString().padStart(4, '0');\n item.invoiceNumber = `INV-${year}${month}-${random}`;\n}\n\n// Set invoice date if not provided\nif (!item.invoiceDate) {\n item.invoiceDate = new Date().toLocaleDateString('en-US', { year: 'numeric', month: 'long', day: 'numeric' });\n}\n\n// Calculate due date if not provided (default 30 days)\nif (!item.dueDate) {\n const dueDays = item.paymentTermsDays || 30;\n const dueDate = new Date();\n dueDate.setDate(dueDate.getDate() + dueDays);\n item.dueDate = dueDate.toLocaleDateString('en-US', { year: 'numeric', month: 'long', day: 'numeric' });\n}\n\n// Calculate subtotal\nitem.subtotal = item.items.reduce((sum, lineItem) => sum + lineItem.amount, 0);\n\n// Apply discount if provided\nitem.discountAmount = parseFloat(item.discountAmount) || 0;\nconst afterDiscount = item.subtotal - item.discountAmount;\n\n// Calculate tax (default 18% if not provided)\nitem.taxRate = parseFloat(item.taxRate) || 18;\nitem.taxAmount = (afterDiscount * item.taxRate) / 100;\n\n// Calculate total\nitem.total = afterDiscount + item.taxAmount;\n\n// Set currency defaults\nitem.currency = item.currency || 'USD';\nitem.currencySymbol = item.currencySymbol || '$';\n\n// Payment terms\nitem.paymentTerms = item.paymentTerms || 'Payment due within 30 days';\n\nreturn { json: item };"
},
"typeVersion": 2
},
{
"id": "92f92526-75c7-47c9-9183-39a9a5de3735",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
384,
-320
],
"parameters": {
"color": 7,
"width": 424,
"height": 496,
"content": "## Smart Notifications\n\nRoutes Slack alerts based on payment status. Paid invoices get success notifications. Unpaid/partial invoices get reminders with due dates, enabling accounting team to prioritize collections follow-up."
},
"typeVersion": 1
},
{
"id": "2624ead6-7e79-4b13-80ba-0a753d39d17b",
"name": "Enrich with Company Data",
"type": "n8n-nodes-base.code",
"position": [
-624,
-80
],
"parameters": {
"jsCode": "// Add company information and branding\nconst item = $input.first().json;\n\n// Company information (customize these)\nconst companyDefaults = {\n companyName: item.companyName || 'Media Jade',\n companyAddress: item.companyAddress || '456 Company Street',\n companyCity: item.companyCity || 'San Francisco, CA 94105',\n companyEmail: item.companyEmail || 'user@example.com',\n companyPhone: item.companyPhone || '+1234567890',\n companyWebsite: item.companyWebsite || 'www.mediajde.com',\n companyLogo: item.companyLogo || '',\n \n // Tax registration numbers\n taxId: item.taxId || 'TAX-123456789',\n gstNumber: item.gstNumber || 'GST-987654321',\n \n // Bank details for payment\n bankName: item.bankName || 'Chase Bank',\n accountNumber: item.accountNumber || '****1234',\n routingNumber: item.routingNumber || '****5678',\n swiftCode: item.swiftCode || 'CHASUS33',\n \n // Payment links\n paymentLink: item.paymentLink || '',\n \n // Customer defaults\n customerCompany: item.customerCompany || '',\n customerAddress: item.customerAddress || '',\n customerCity: item.customerCity || '',\n customerPhone: item.customerPhone || '',\n \n // Invoice notes\n notes: item.notes || 'Thank you for your business!',\n termsConditions: item.termsConditions || 'Payment is due within the specified terms. Late payments may incur additional charges.'\n};\n\nreturn { json: { ...item, ...companyDefaults } };"
},
"typeVersion": 2
},
{
"id": "232fc78f-fbfd-444e-9a8a-ee9639d9e10d",
"name": "Generate Invoice HTML",
"type": "n8n-nodes-base.code",
"position": [
-432,
-80
],
"parameters": {
"jsCode": "// Generate professional invoice HTML\nconst item = $input.first().json;\n\n// Payment status styling\nconst getStatusColor = (status) => {\n const colors = {\n 'paid': { bg: '#10b981', text: 'PAID' },\n 'unpaid': { bg: '#ef4444', text: 'UNPAID' },\n 'partial': { bg: '#f59e0b', text: 'PARTIALLY PAID' }\n };\n return colors[status.toLowerCase()] || colors['unpaid'];\n};\n\nconst statusStyle = getStatusColor(item.paymentStatus);\n\nconst html = `\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Invoice - ${item.invoiceNumber}</title>\n <style>\n @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');\n * { margin: 0; padding: 0; box-sizing: border-box; }\n body { font-family: 'Inter', sans-serif; line-height: 1.6; color: #1f2937; background: #ffffff; }\n .container { max-width: 800px; margin: 0 auto; padding: 40px; }\n .header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 40px; padding-bottom: 20px; border-bottom: 3px solid #3b82f6; }\n .company-info { flex: 1; }\n .logo { max-width: 160px; height: auto; margin-bottom: 15px; }\n .company-name { color: #3b82f6; font-size: 26px; font-weight: 700; margin-bottom: 8px; }\n .company-details { font-size: 13px; color: #6b7280; line-height: 1.7; }\n .invoice-badge { text-align: right; }\n .invoice-title { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); color: white; padding: 12px 25px; border-radius: 8px; font-size: 22px; font-weight: 700; letter-spacing: 1.5px; margin-bottom: 12px; }\n .invoice-number { font-size: 15px; color: #1f2937; font-weight: 600; margin-bottom: 8px; }\n .payment-status { display: inline-block; padding: 6px 16px; border-radius: 20px; font-size: 12px; font-weight: 700; letter-spacing: 1px; color: white; background: ${statusStyle.bg}; margin-top: 8px; }\n .info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 40px; }\n .info-card { background: #f8fafc; padding: 20px; border-radius: 10px; border: 1px solid #e2e8f0; }\n .info-card h3 { color: #3b82f6; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 12px; border-bottom: 2px solid #3b82f6; padding-bottom: 8px; }\n .info-card p { font-size: 13px; color: #4b5563; margin: 6px 0; }\n .info-card .name { font-size: 16px; font-weight: 600; color: #1f2937; margin-bottom: 4px; }\n .items-table { width: 100%; border-collapse: separate; border-spacing: 0; margin-bottom: 25px; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06); border-radius: 10px; overflow: hidden; }\n .items-table thead { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }\n .items-table th { padding: 14px; text-align: left; font-weight: 600; font-size: 13px; color: white; text-transform: uppercase; }\n .items-table tbody tr { background: white; }\n .items-table tbody tr:nth-child(even) { background: #f9fafb; }\n .items-table td { padding: 14px; border-bottom: 1px solid #e5e7eb; font-size: 13px; color: #374151; }\n .items-table tbody tr:last-child td { border-bottom: none; }\n .text-right { text-align: right; }\n .summary-section { margin-left: auto; width: 350px; }\n .summary-row { display: flex; justify-content: space-between; padding: 10px 0; font-size: 14px; color: #4b5563; }\n .summary-row.subtotal { font-weight: 500; border-top: 1px solid #e5e7eb; padding-top: 12px; }\n .summary-row.total { border-top: 3px solid #3b82f6; margin-top: 12px; padding-top: 15px; font-weight: 700; font-size: 18px; color: #1e40af; background: #eff6ff; padding: 15px; border-radius: 8px; }\n .payment-info { margin-top: 40px; padding: 25px; background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%); border-left: 5px solid #10b981; border-radius: 8px; }\n .payment-info h3 { color: #065f46; font-size: 16px; font-weight: 700; margin-bottom: 15px; }\n .payment-info p { color: #047857; font-size: 13px; margin: 6px 0; }\n .payment-info strong { color: #064e3b; }\n .notes-section { margin-top: 30px; padding: 20px; background: #fef3c7; border-left: 4px solid #f59e0b; border-radius: 6px; }\n .notes-section h3 { color: #92400e; font-size: 14px; font-weight: 700; margin-bottom: 10px; }\n .notes-section p { color: #78350f; font-size: 13px; line-height: 1.6; }\n .footer { margin-top: 40px; padding-top: 20px; border-top: 2px solid #e5e7eb; text-align: center; color: #6b7280; font-size: 12px; }\n .footer p { margin: 5px 0; }\n @media print { body { print-color-adjust: exact; -webkit-print-color-adjust: exact; } }\n </style>\n</head>\n<body>\n <div class=\"container\">\n <div class=\"header\">\n <div class=\"company-info\">\n ${item.companyLogo ? `<img src=\"${item.companyLogo}\" alt=\"${item.companyName}\" class=\"logo\">` : `<h1 class=\"company-name\">${item.companyName}</h1>`}\n <div class=\"company-details\">\n ${item.companyAddress}<br>\n ${item.companyCity}<br>\n ${item.companyEmail} | ${item.companyPhone}<br>\n ${item.companyWebsite}\n </div>\n </div>\n <div class=\"invoice-badge\">\n <div class=\"invoice-title\">INVOICE</div>\n <div class=\"invoice-number\">${item.invoiceNumber}</div>\n <div class=\"payment-status\">${statusStyle.text}</div>\n </div>\n </div>\n\n <div class=\"info-grid\">\n <div class=\"info-card\">\n <h3>Bill To</h3>\n <p class=\"name\">${item.customerName}</p>\n ${item.customerCompany ? `<p><strong>${item.customerCompany}</strong></p>` : ''}\n <p>${item.customerEmail}</p>\n ${item.customerPhone ? `<p>${item.customerPhone}</p>` : ''}\n ${item.customerAddress ? `<p>${item.customerAddress}</p>` : ''}\n ${item.customerCity ? `<p>${item.customerCity}</p>` : ''}\n </div>\n <div class=\"info-card\">\n <h3>Invoice Details</h3>\n <p><strong>Invoice Date:</strong> ${item.invoiceDate}</p>\n <p><strong>Due Date:</strong> ${item.dueDate}</p>\n <p><strong>Payment Terms:</strong> ${item.paymentTerms}</p>\n ${item.purchaseOrderNumber ? `<p><strong>PO Number:</strong> ${item.purchaseOrderNumber}</p>` : ''}\n </div>\n </div>\n\n <table class=\"items-table\">\n <thead>\n <tr>\n <th style=\"width: 50%;\">Description</th>\n <th class=\"text-right\" style=\"width: 15%;\">Quantity</th>\n <th class=\"text-right\" style=\"width: 17%;\">Rate</th>\n <th class=\"text-right\" style=\"width: 18%;\">Amount</th>\n </tr>\n </thead>\n <tbody>\n ${item.items.map(lineItem => `\n <tr>\n <td>${lineItem.description}</td>\n <td class=\"text-right\">${lineItem.quantity}</td>\n <td class=\"text-right\">${item.currencySymbol}${lineItem.rate.toFixed(2)}</td>\n <td class=\"text-right\"><strong>${item.currencySymbol}${lineItem.amount.toFixed(2)}</strong></td>\n </tr>\n `).join('')}\n </tbody>\n </table>\n\n <div class=\"summary-section\">\n <div class=\"summary-row subtotal\">\n <span>Subtotal:</span>\n <span>${item.currencySymbol}${item.subtotal.toFixed(2)}</span>\n </div>\n ${item.discountAmount > 0 ? `\n <div class=\"summary-row\">\n <span>Discount:</span>\n <span>-${item.currencySymbol}${item.discountAmount.toFixed(2)}</span>\n </div>\n ` : ''}\n <div class=\"summary-row\">\n <span>Tax (${item.taxRate}%):</span>\n <span>${item.currencySymbol}${item.taxAmount.toFixed(2)}</span>\n </div>\n <div class=\"summary-row total\">\n <span>Total Amount:</span>\n <span>${item.currencySymbol}${item.total.toFixed(2)}</span>\n </div>\n </div>\n\n <div class=\"payment-info\">\n <h3>\ud83d\udcb3 Payment Information</h3>\n <p><strong>Bank Name:</strong> ${item.bankName}</p>\n <p><strong>Account Number:</strong> ${item.accountNumber}</p>\n <p><strong>Routing Number:</strong> ${item.routingNumber}</p>\n ${item.swiftCode ? `<p><strong>SWIFT Code:</strong> ${item.swiftCode}</p>` : ''}\n ${item.taxId ? `<p><strong>Tax ID:</strong> ${item.taxId}</p>` : ''}\n ${item.gstNumber ? `<p><strong>GST Number:</strong> ${item.gstNumber}</p>` : ''}\n ${item.paymentLink ? `<p style=\"margin-top: 12px;\"><strong>\ud83d\udcb0 Pay Online:</strong> <a href=\"${item.paymentLink}\" style=\"color: #047857; text-decoration: underline;\">${item.paymentLink}</a></p>` : ''}\n </div>\n\n ${item.notes ? `\n <div class=\"notes-section\">\n <h3>\ud83d\udcdd Notes</h3>\n <p>${item.notes}</p>\n </div>\n ` : ''}\n\n <div class=\"footer\">\n <p><strong>${item.companyName}</strong></p>\n <p>${item.termsConditions}</p>\n <p style=\"margin-top: 10px;\">Questions? Contact us at ${item.companyEmail} or ${item.companyPhone}</p>\n </div>\n </div>\n</body>\n</html>\n`;\n\nreturn {\n json: {\n html: html,\n invoiceNumber: item.invoiceNumber,\n customerName: item.customerName,\n customerEmail: item.customerEmail,\n total: item.total,\n currency: item.currency,\n paymentStatus: item.paymentStatus,\n fileName: `Invoice_${item.invoiceNumber}_${item.customerName.replace(/[^a-zA-Z0-9]/g, '_')}.pdf`,\n ...item\n }\n};"
},
"typeVersion": 2
},
{
"id": "88557c37-4406-49ea-92fb-1f96d7127f8d",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-272,
-272
],
"parameters": {
"color": 7,
"width": 280,
"height": 340,
"content": "## PDF & Storage\n\nConverts HTML to print-ready PDF with preserved formatting, then archives to Google Drive with descriptive filename for searchability, compliance, and easy sharing."
},
"typeVersion": 1
},
{
"id": "fa21eb40-1c81-4c0c-8517-6b3305ba136f",
"name": "HTML to PDF",
"type": "n8n-nodes-htmlcsstopdf.htmlcsstopdf",
"position": [
-256,
-80
],
"parameters": {},
"typeVersion": 1
},
{
"id": "268db052-2990-4760-8cc0-457aa25b3fdc",
"name": "Save to Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
-96,
-80
],
"parameters": {
"name": "={{ $('Generate Invoice HTML').item.json.fileName }}",
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "root"
}
},
"typeVersion": 3
},
{
"id": "f1e750d4-15f7-4b59-8b9c-33e252677333",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
64,
-288
],
"parameters": {
"color": 7,
"width": 280,
"height": 368,
"content": "## Customer Delivery\n\nEmails invoice PDF to customer with payment instructions, bank details, and due date reminder. Instant delivery improves cash flow by reducing payment delays."
},
"typeVersion": 1
},
{
"id": "eaa80439-09ea-4ccc-91b1-030cc0b1e149",
"name": "Is Payment Received?",
"type": "n8n-nodes-base.if",
"position": [
432,
-80
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $('Generate Invoice HTML').item.json.paymentStatus }}",
"value2": "paid",
"operation": "equals"
}
]
}
},
"typeVersion": 1
},
{
"id": "f05925be-b9d1-428b-8e0a-a55c29854209",
"name": "Notify Team - Paid",
"type": "n8n-nodes-base.httpRequest",
"position": [
656,
-176
],
"parameters": {
"url": "https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK",
"options": {},
"jsonBody": "={\n \"text\": \"\u2705 Invoice Paid & Delivered!\",\n \"blocks\": [\n {\n \"type\": \"section\",\n \"text\": {\n \"type\": \"mrkdwn\",\n \"text\": \"*\ud83d\udcb0 Payment Received*\\n\\n*Invoice:* {{ $('Generate Invoice HTML').item.json.invoiceNumber }}\\n*Customer:* {{ $('Generate Invoice HTML').item.json.customerName }}\\n*Amount:* {{ $('Generate Invoice HTML').item.json.currency }} {{ $('Generate Invoice HTML').item.json.total }}\\n*Status:* PAID\\n\\n<{{ $('Save to Google Drive').item.json.webViewLink }}|View Invoice in Drive>\"\n }\n }\n ]\n}",
"sendBody": true,
"specifyBody": "json"
},
"typeVersion": 4.1
},
{
"id": "bed6dcd1-1c79-4fa9-8ac3-7f65e6168505",
"name": "Notify Team - Unpaid",
"type": "n8n-nodes-base.httpRequest",
"position": [
656,
32
],
"parameters": {
"url": "https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK",
"options": {},
"jsonBody": "={\n \"text\": \"\u23f3 Invoice Sent - Payment Pending\",\n \"blocks\": [\n {\n \"type\": \"section\",\n \"text\": {\n \"type\": \"mrkdwn\",\n \"text\": \"*\ud83d\udce4 Invoice Sent*\\n\\n*Invoice:* {{ $('Generate Invoice HTML').item.json.invoiceNumber }}\\n*Customer:* {{ $('Generate Invoice HTML').item.json.customerName }}\\n*Amount:* {{ $('Generate Invoice HTML').item.json.currency }} {{ $('Generate Invoice HTML').item.json.total }}\\n*Status:* {{ $('Generate Invoice HTML').item.json.paymentStatus }}\\n*Due Date:* {{ $('Generate Invoice HTML').item.json.dueDate }}\\n\\n<{{ $('Save to Google Drive').item.json.webViewLink }}|View Invoice in Drive>\"\n }\n }\n ]\n}",
"sendBody": true,
"specifyBody": "json"
},
"typeVersion": 4.1
},
{
"id": "3d20247f-67bf-40de-a517-591f63408bcd",
"name": "Send to Customer",
"type": "n8n-nodes-base.gmail",
"position": [
144,
-80
],
"parameters": {
"options": {}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
}
],
"connections": {
"HTML to PDF": {
"main": [
[
{
"node": "Save to Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Webhook Trigger": {
"main": [
[
{
"node": "Validate Invoice Data",
"type": "main",
"index": 0
}
]
]
},
"Send to Customer": {
"main": [
[
{
"node": "Is Payment Received?",
"type": "main",
"index": 0
}
]
]
},
"Is Payment Received?": {
"main": [
[
{
"node": "Notify Team - Paid",
"type": "main",
"index": 0
}
],
[
{
"node": "Notify Team - Unpaid",
"type": "main",
"index": 0
}
]
]
},
"Save to Google Drive": {
"main": [
[
{
"node": "Send to Customer",
"type": "main",
"index": 0
}
]
]
},
"Generate Invoice HTML": {
"main": [
[
{
"node": "HTML to PDF",
"type": "main",
"index": 0
}
]
]
},
"Validate Invoice Data": {
"main": [
[
{
"node": "Enrich with Company Data",
"type": "main",
"index": 0
}
]
]
},
"Enrich with Company Data": {
"main": [
[
{
"node": "Generate Invoice HTML",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2
Pro
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About this workflow
Transform invoice creation from 30 minutes to 30 seconds - automatically generate professional PDF invoices with tax calculations, payment tracking, and instant delivery via email while archiving to Google Drive and notifying your team based on payment status.
Source: https://n8n.io/workflows/10588/ — original creator credit. Request a take-down →
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