Jitesh Dugar This workflow corresponds to n8n.io template #10464 — we link there as the canonical source.
This workflow follows the Gmail → HTTP Request 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 →
{
"id": "",
"meta": {
"templateCredsSetupCompleted": false
},
"name": "Verified Building Visitor Entry Pass & Security Notification System",
"tags": [],
"nodes": [
{
"id": "c5c2f1f9-4d11-4746-bda7-13cdb965c51b",
"name": "Sticky Note - Overview1",
"type": "n8n-nodes-base.stickyNote",
"position": [
336,
640
],
"parameters": {
"width": 468,
"height": 792,
"content": "### How It Works\nThis workflow automates visitor onboarding by validating each registration, \ngenerating a unique entry pass with QR code, and delivering it instantly. \nWhen a visitor submits their details through the webhook, the workflow checks \nfor required fields, verifies the email using VerifiEmail, and routes invalid \nentries to a structured error response. For valid entries, it creates a unique \npass ID, generates a QR code, builds a formatted HTML entry pass, and converts \nit into a downloadable PDF. The pass is emailed to the visitor and a \nconfirmation notification is posted to Slack for the security/reception team.\n\n### Setup Steps\n1. Connect credentials: VerifiEmail, HTML-to-PDF service, Gmail, Slack.\n2. Replace placeholder values:\n - Email sender name and company details\n - Slack channel ID (set to your #security or #reception channel)\n - Company logo URL in HTML template (optional)\n3. Copy the webhook URL and integrate with your visitor registration form.\n4. Test using a sample submission with a real email address.\n5. Activate the workflow to begin processing visitor registrations.\n\n### Use Cases\n- Corporate office visitor management\n- Co-working space day passes\n- Secure facility access control\n- Event/conference check-in\n- Contractor/vendor entry tracking"
},
"typeVersion": 1
},
{
"id": "11c70946-2894-4f98-bd77-f6587288935d",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
832,
1152
],
"parameters": {
"color": 7,
"width": 736,
"height": 272,
"content": "## Visitor Registration & Email Verification\nReceives visitor details and validates email deliverability before generating pass."
},
"typeVersion": 1
},
{
"id": "6fdcfbcc-5f00-4462-9bcc-956c5421f978",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1680,
1056
],
"parameters": {
"color": 7,
"width": 624,
"height": 272,
"content": "## Entry Pass Generation\nGenerates unique pass ID, QR code, and formatted PDF entry pass for the visitor."
},
"typeVersion": 1
},
{
"id": "3601b7ef-7c86-4cf0-8917-2ce741260a19",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
2336,
1072
],
"parameters": {
"color": 7,
"width": 880,
"height": 256,
"content": "## Pass Distribution & Security Alert\nDelivers entry pass to visitor via email and notifies security/reception team through Slack."
},
"typeVersion": 1
},
{
"id": "f0034f04-8d6d-4b8a-945e-ac056eb5e0dd",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
1712,
1488
],
"parameters": {
"color": 7,
"width": 528,
"height": 240,
"content": "## Error Handling\nReturns structured error responses for invalid submissions."
},
"typeVersion": 1
},
{
"id": "5e7908bd-492b-4a20-be5a-31a191aa725e",
"name": "Generate Entry Pass ID",
"type": "n8n-nodes-base.function",
"position": [
1744,
1152
],
"parameters": {
"functionCode": "const badgeId = \"ENTRY-\" + Date.now(); // Changed from \"SHIFT-\" to \"ENTRY-\"\nconst timestamp = new Date().toISOString();\n\n// Get the original webhook data\nconst webhookData = $('Receive Visitor Registration').item.json.body;\n\nreturn [{\n json: {\n ...webhookData, // This preserves all visitor data\n badge_id: badgeId,\n timestamp: timestamp,\n email: $('Verify Visitor Email').item.json.email // Add email back from verification\n }\n}];"
},
"typeVersion": 1
},
{
"id": "0c6db00c-c5d5-4ef2-af8e-b0b307d584a0",
"name": "Verify Visitor Email",
"type": "n8n-nodes-verifiemail.verifiEmail",
"position": [
1136,
1248
],
"parameters": {
"email": "={{ $json.body.visitor_email }}"
},
"credentials": {
"verifiEmailApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "f678f5b4-878f-4cf6-801a-c41ce0f0b4f4",
"name": "Receive Visitor Registration",
"type": "n8n-nodes-base.webhook",
"position": [
864,
1248
],
"parameters": {
"path": "volunteer-shift",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 1
},
{
"id": "5c368efe-2514-47bc-9cb5-1821194b120f",
"name": "Check Email Validity",
"type": "n8n-nodes-base.if",
"position": [
1392,
1248
],
"parameters": {
"conditions": {
"boolean": [
{
"value1": "={{ $json.valid }}",
"value2": true
}
]
}
},
"typeVersion": 1
},
{
"id": "9d884e72-ae03-49ae-9a46-47b56a2fab27",
"name": "Create QR Code for Pass",
"type": "n8n-nodes-base.httpRequest",
"position": [
1952,
1152
],
"parameters": {
"url": "=https://api.qrserver.com/v1/create-qr-code/?data={{$json.badge_id}}&size=200x200&color=1A73E8&bgcolor=FFFFFF",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "6054bd22-2c58-4737-95f8-c0455783a906",
"name": "Store QR Code URL",
"type": "n8n-nodes-base.set",
"position": [
2160,
1152
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "b776dc31-1c89-4475-88a5-ada5598fc14a",
"name": "qrcodeurl",
"type": "string",
"value": "={{$node[\"Create QR Code for Pass\"].parameter[\"url\"]}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "9b70d418-5714-4d1a-9c0a-86fbaf4b7e31",
"name": "Generate Entry Pass PDF",
"type": "n8n-nodes-htmlcsstopdf.htmlcsstopdf",
"position": [
2400,
1152
],
"parameters": {
"html_content": "=<div style=\"font-family: Arial, sans-serif; width: 450px; border: 4px solid #1A73E8; border-radius: 15px; padding: 20px; text-align: center; background: #f8fbff; box-shadow: 0 8px 16px rgba(0,0,0,0.1);\">\n <h2 style=\"color: #1A73E8; margin: 0;\">\ud83c\udfe2 Building Entry Pass</h2>\n <hr style=\"border: 1px dashed #1A73E8; margin: 15px 0;\">\n <h3 style=\"margin: 10px 0; color: #333;\">{{ $('Create QR Code for Pass').item.json.visit_purpose }}</h3>\n \n <p style=\"margin: 5px 0;\"><strong>Visitor:</strong> {{ $('Create QR Code for Pass').item.json.visitor_name }}</p>\n <p style=\"margin: 5px 0;\"><strong>Host:</strong> {{ $('Create QR Code for Pass').item.json.host_name }}</p>\n <p style=\"margin: 5px 0;\"><strong>Visit Date:</strong> {{ $('Create QR Code for Pass').item.json.visit_date }}</p>\n <p style=\"margin: 5px 0;\"><strong>Location:</strong> {{ $('Create QR Code for Pass').item.json.building_location }}</p>\n \n <!-- QR CODE EMBEDDED HERE -->\n <img \n src=\"{{ $json.qrcodeurl }}\" \n width=\"140\" \n alt=\"Scan at Reception\"\n style=\"margin: 20px 0; padding: 10px; background: white; border: 3px solid #1A73E8; border-radius: 12px;\"\n >\n \n <p style=\"font-size: 13px; color: #444; margin: 10px 0;\">\n <strong>Pass ID:</strong> <code style=\"background: #eee; padding: 2px 8px; border-radius: 4px;\">{{$('Create QR Code for Pass').item.json.badge_id}}</code>\n </p>\n \n <p style=\"font-size: 10px; color: #888; margin: 5px 0;\">\n Generated: {{ $('Create QR Code for Pass').item.json.timestamp.split(\"T\")[0] }} at {{ $('Create QR Code for Pass').item.json.timestamp.split(\"T\")[1].split(\".\")[0].slice(0,5) }} UTC\n </p>\n \n <footer style=\"margin-top: 15px; font-size: 9px; color: #aaa;\">\n Security Verified Entry Pass \u2022 Scan at Reception\n </footer>\n</div>"
},
"credentials": {
"htmlcsstopdfApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "03a47ad0-8542-478a-ba17-489fe8563e45",
"name": "Send Pass to Visitor",
"type": "n8n-nodes-base.gmail",
"position": [
2624,
1152
],
"parameters": {
"sendTo": "={{ $('Generate Entry Pass ID').item.json.visitor_email }}",
"message": "=<!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>Your Verified Volunteer Shift Badge</title>\n <style>\n body {\n margin: 0;\n padding: 0;\n background: #f4f6f9;\n font-family: Arial, Helvetica, sans-serif;\n color: #333;\n }\n .container {\n max-width: 600px;\n margin: 20px auto;\n background: #ffffff;\n border-radius: 12px;\n overflow: hidden;\n box-shadow: 0 8px 24px rgba(0,0,0,0.1);\n }\n .header {\n background: linear-gradient(135deg, #1A73E8, #34A853);\n padding: 30px 20px;\n text-align: center;\n color: white;\n }\n .header h1 {\n margin: 0;\n font-size: 28px;\n font-weight: bold;\n }\n .header p {\n margin: 10px 0 0;\n font-size: 16px;\n opacity: 0.9;\n }\n .badge {\n padding: 30px;\n text-align: center;\n background: #f8fbff;\n }\n .badge h2 {\n color: #1A73E8;\n margin: 0 0 20px;\n font-size: 24px;\n }\n .details {\n background: white;\n padding: 20px;\n border-radius: 10px;\n box-shadow: 0 4px 12px rgba(0,0,0,0.05);\n margin: 20px 0;\n }\n .details p {\n margin: 12px 0;\n font-size: 16px;\n }\n .details strong {\n color: #1A73E8;\n width: 120px;\n display: inline-block;\n }\n .qr-code {\n margin: 25px 0;\n padding: 15px;\n background: white;\n border: 4px solid #1A73E8;\n border-radius: 16px;\n display: inline-block;\n box-shadow: 0 6px 16px rgba(26,115,232,0.2);\n }\n .qr-code img {\n width: 160px;\n height: 160px;\n }\n .badge-id {\n font-family: monospace;\n background: #e8f0fe;\n padding: 8px 16px;\n border-radius: 8px;\n font-size: 18px;\n font-weight: bold;\n color: #1A73E8;\n letter-spacing: 1px;\n }\n .footer {\n background: #f0f4f8;\n padding: 20px;\n text-align: center;\n font-size: 12px;\n color: #666;\n }\n .button {\n display: inline-block;\n margin: 20px 0;\n padding: 14px 32px;\n background: #1A73E8;\n color: white;\n text-decoration: none;\n font-weight: bold;\n border-radius: 8px;\n font-size: 16px;\n box-shadow: 0 4px 12px rgba(26,115,232,0.3);\n }\n .button:hover {\n background: #1557b0;\n }\n @media (max-width: 480px) {\n .container { margin: 10px; }\n .header h1 { font-size: 24px; }\n .qr-code img { width: 140px; height: 140px; }\n }\n </style>\n</head>\n<body>\n <div class=\"container\">\n <!-- Header -->\n <div class=\"header\">\n <h1>\ud83c\udfe2 Entry Pass Confirmed!</h1>\n<p>Your visitor pass is ready for {{ $('Create QR Code for Pass').item.json.visit_date }}</p>\n\n <!-- Badge Content -->\n <div class=\"badge\">\n <h2>Visitor Entry Pass</h2>\n \n <div class=\"details\">\n <p><strong>Visitor Name:</strong> {{ $('Create QR Code for Pass').item.json.visitor_name }}</p>\n<p><strong>Email:</strong> {{ $('Create QR Code for Pass').item.json.visitor_email }}</p>\n<p><strong>Host:</strong> {{ $('Create QR Code for Pass').item.json.host_name }}</p>\n<p><strong>Visit Date:</strong> {{ $('Create QR Code for Pass').item.json.visit_date }}</p>\n<p><strong>Location:</strong> {{ $('Create QR Code for Pass').item.json.building_location }}</p>\n<p><strong>Purpose:</strong> {{ $('Create QR Code for Pass').item.json.visit_purpose }}</p>\n </div>\n\n <!-- QR Code -->\n <div class=\"qr-code\">\n <img src=\"{{ $('Store QR Code URL').item.json.qrcodeurl }}\" alt=\"Scan to Verify\">\n </div>\n\n <div class=\"badge-id\">{{ $('Generate Entry Pass ID').item.json.badge_id }}</div>\n\n <p style=\"margin: 20px 0; font-size: 14px; color: #666;\">\n Generated on: {{ $('Generate Entry Pass ID').item.json.timestamp.split(\"T\")[0]}} at {{ $('Generate Entry Pass ID').item.json.timestamp.split(\"T\")[1].split(\".\")[0].slice(0,5)}} UTC\n </p>\n\n <a href=\"{{ $json.pdf_url }}\" class=\"button\">Download Badge Image</a>\n </div>\n\n <!-- Instructions -->\n <div style=\"padding: 0 30px 30px; text-align: center;\">\n <h3>Entry Pass Instructions</h3>\n<ol>\n <li>Present this pass at the reception desk</li>\n <li>Security will scan your QR code for instant verification</li>\n <li>Print the PDF or show on your mobile device</li>\n <li>Please arrive 5 minutes before your scheduled visit</li>\n</ol>\n<p>We look forward to your visit! \ud83c\udfe2</p>\n </div>\n\n <!-- Footer -->\n <div class=\"footer\">\n <p>Security & Reception Team \u2022 [Your Company Name]</p>\n<p>Need help? Reply to this email or contact reception@yourcompany.com</p>\n <p><small>This is an automated message. Badge ID:{{ $('Generate Entry Pass ID').item.json.badge_id }} </small></p>\n </div>\n </div>\n</body>\n</html>",
"options": {},
"subject": "=Your Verified Building Entry Pass - {{ $('Generate Entry Pass ID').item.json.visit_date }}"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "f022a244-1f19-413c-82f5-fe7aba9300f8",
"name": "Notify Security Team",
"type": "n8n-nodes-base.slack",
"position": [
2816,
1152
],
"parameters": {
"text": "=\ud83c\udfe2 *New Visitor Entry Pass Generated*\n\n\ud83d\udc64 **Visitor:** {{ $('Receive Visitor Registration').item.json.body.visitor_name }}\n\ud83c\udfe2 **Company:** {{ $('Receive Visitor Registration').item.json.body.company_name }} *(if provided)*\n\ud83d\udc54 **Host:** {{ $('Receive Visitor Registration').item.json.body.host_name }}\n\ud83d\udcc5 **Visit Date:** {{ $('Receive Visitor Registration').item.json.body.visit_date }}\n\ud83d\udccd **Location:** {{ $('Receive Visitor Registration').item.json.body.building_location }}\n\ud83c\udfaf **Purpose:** {{ $('Receive Visitor Registration').item.json.body.visit_purpose }}\n\ud83d\udce7 **Email:** {{ $('Receive Visitor Registration').item.json.body.visitor_email }} (Verified \u2705)\n\n\ud83c\udd94 **Pass ID:** `{{ $('Generate Entry Pass ID').item.json.badge_id }}`\n*Generated:* {{ $('Generate Entry Pass ID').item.json.timestamp }}\n\n\ud83d\udd17 **QR Preview:** {{ $('Store QR Code URL').item.json.qrcodeurl }}\n*(Scan-ready for reception desk)*\n\n\ud83d\udcc4 **Digital Pass:** {{ $('Generate Entry Pass PDF').item.json.pdf_url }}\n*Forward to reception or print for manual verification*\n\n\u26a0\ufe0f **Action Required:**\n- Notify reception desk of expected visitor\n- Ensure host {{ $('Receive Visitor Registration').item.json.body.host_name }} is available\n- Prepare visitor badge/access card if needed\n\n_Automated Security System \u2022 n8n Workflow_",
"select": "channel",
"channelId": {
"__rl": true,
"mode": "list",
"value": "YOUR_SLACK_CHANNEL_ID",
"cachedResultName": "YOUR_SLACK_CHANNEL_NAME"
},
"otherOptions": {}
},
"credentials": {
"slackApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.3
},
{
"id": "ac0b1f3e-5138-4526-9dc3-6b251669cb7f",
"name": "Confirm Pass Generated",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
3024,
1152
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={\n \"success\": true,\n \"message\": \"Entry pass generated and sent!\",\n \"pass_id\": \"{{ $('Generate Entry Pass ID').item.json.badge_id }}\",\n \"visitor\": \"{{ $('Generate Entry Pass ID').item.json.visitor_name }}\",\n \"visit_date\": \"{{ $('Generate Entry Pass ID').item.json.visit_date }}\"\n}"
},
"typeVersion": 1.4
},
{
"id": "9ac940ff-97dd-4a30-a42f-c0fe8fb8789d",
"name": "Set Invalid Email Error",
"type": "n8n-nodes-base.set",
"position": [
1776,
1584
],
"parameters": {
"values": {
"string": [
{
"name": "error",
"value": "Invalid or disposable email."
}
]
},
"options": {},
"keepOnlySet": true
},
"typeVersion": 1
},
{
"id": "d6e5890c-662f-41bc-bc4d-5f3563ac898d",
"name": "Return Error Response",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
2048,
1584
],
"parameters": {
"options": {}
},
"typeVersion": 1.4
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "",
"connections": {
"Store QR Code URL": {
"main": [
[
{
"node": "Generate Entry Pass PDF",
"type": "main",
"index": 0
}
]
]
},
"Check Email Validity": {
"main": [
[
{
"node": "Generate Entry Pass ID",
"type": "main",
"index": 0
}
],
[
{
"node": "Set Invalid Email Error",
"type": "main",
"index": 0
}
]
]
},
"Notify Security Team": {
"main": [
[
{
"node": "Confirm Pass Generated",
"type": "main",
"index": 0
}
]
]
},
"Send Pass to Visitor": {
"main": [
[
{
"node": "Notify Security Team",
"type": "main",
"index": 0
}
]
]
},
"Verify Visitor Email": {
"main": [
[
{
"node": "Check Email Validity",
"type": "main",
"index": 0
}
]
]
},
"Generate Entry Pass ID": {
"main": [
[
{
"node": "Create QR Code for Pass",
"type": "main",
"index": 0
}
]
]
},
"Create QR Code for Pass": {
"main": [
[
{
"node": "Store QR Code URL",
"type": "main",
"index": 0
}
]
]
},
"Generate Entry Pass PDF": {
"main": [
[
{
"node": "Send Pass to Visitor",
"type": "main",
"index": 0
}
]
]
},
"Set Invalid Email Error": {
"main": [
[
{
"node": "Return Error Response",
"type": "main",
"index": 0
}
]
]
},
"Receive Visitor Registration": {
"main": [
[
{
"node": "Verify Visitor Email",
"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.
gmailOAuth2htmlcsstopdfApislackApiverifiEmailApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Automate building visitor management with secure verification, digital entry passes, and real-time security notifications.
Source: https://n8n.io/workflows/10464/ — original creator credit. Request a take-down →
Related workflows
Workflows that share integrations, category, or trigger type with this one. All free to copy and import.
Receive booking requests via webhook with automatic validation, duplicate detection, availability checking, confirmation emails, Google Calendar sync, and Slack notifications.
HTTP Request, Gmail, Google Calendar +2
Automate short-term trading research by generating high-quality trade ideas using MCP (Market Context Protocol) signals and AI-powered analysis. 📈🤖 This workflow evaluates market context, catalysts, m
Slack, Asana, HTTP Request +4
This workflow is an automated invoice payment tracking and reminder system for the Polish accounting service iFirma.pl. It monitors unpaid and overdue invoices, then automatically sends escalating rem
HTTP Request, Stop And Error, Slack +1
This template is designed for freelancers, small businesses, and finance teams who need automated invoice management with intelligent payment follow-ups. Perfect for service providers, agencies, or an
Google Sheets, Gmail, Slack
A complete, production-ready newsletter automation workflow that validates email addresses, sends personalized welcome emails, and maintains comprehensive logs in Google Sheets. Perfect for marketing
Google Sheets, Gmail, N8N Nodes Verifiemail