{ "name": "R1 lead capture: sheet row + Gmail draft (never a send)", "nodes": [ { "parameters": { "httpMethod": "POST", "path": "back-office-lead", "responseMode": "onReceived", "options": {} }, "id": "0f1e2d3c-0001-4a00-8000-000000000001", "name": "New lead arrives", "type": "n8n-nodes-base.webhook", "typeVersion": 2, "position": [ -400, 300 ], "webhookId": "0f1e2d3c-0001-4a00-8000-000000000001" }, { "parameters": { "mode": "runOnceForAllItems", "jsCode": "// R1 - the Code node of lead_capture.n8n.json, as one readable file.\n// This file is n8n_normalize_code.js, read-date 2026-11-10.\n//\n// What this is: the normaliser step of recipe R1. n8n stores a Code node's\n// script inside the workflow file; this is that same script in a form you can\n// read, edit and diff. The workflow holds these exact lines, and\n// build_workflow_json.py in this folder is what puts them in, so the two\n// copies cannot drift apart. If you change it here, re-run:\n//\n// python3 build_workflow_json.py\n//\n// What it does: takes whatever your form posted, finds the lead's name,\n// email, phone, source and message however those fields happen to be named,\n// and passes on only the leads that are new and usable. A lead it rejects\n// stops here, so no sheet row is added and no draft is made for it.\n//\n// Nothing here sends anything. The only mail the workflow touches is the\n// DRAFT the Gmail node creates at the end of the chain.\n//\n// Read-date: 2026-11-10.\n\n// Set this to true while you are setting the recipe up, and the node will\n// pass on every lead it was given, each one marked ok or not-ok with the\n// reason. Open the execution in n8n and you can read, item by item, exactly\n// what arrived and what you decided about it. Set it back to false when the\n// recipe is behaving: with false, a rejected lead goes no further.\nvar SHOW_REJECTED = false;\n\n// Which incoming field names mean which output field. Names are \"folded\"\n// first (lower-case, everything but letters and digits removed), so\n// \"Email Address\", \"email_address\" and \"E-MAIL!\" all match \"emailaddress\".\nvar ALIAS = {\n name: ['name', 'fullname', 'yourname', 'contactname', 'leadname', 'buyername'],\n email: ['email', 'emailaddress', 'leademail', 'contactemail', 'buyeremail'],\n phone: ['phone', 'phonenumber', 'phoneno', 'mobile', 'cell', 'telephone'],\n source: ['source', 'leadsource', 'utmsource', 'channel', 'medium', 'campaign'],\n message: ['message', 'yourmessage', 'messages', 'comment', 'comments',\n 'notes', 'note', 'inquiry', 'enquiry', 'details', 'description', 'brief'],\n leadDate: ['date', 'datetime', 'received', 'receivedat', 'submitted',\n 'submittedat', 'timestamp', 'createdat']\n};\n\nvar EMAIL = /^[^@\\s]+@[^@\\s]+\\.[^@\\s]{2,}$/;\n\nfunction fold(key) {\n return String(key).toLowerCase().replace(/[^a-z0-9]/g, '');\n}\n\nfunction text(value) {\n return value === null || value === undefined ? '' : String(value).trim();\n}\n\n// A Webhook node wraps what was posted inside \"body\", so look there first.\nfunction unwrap(json) {\n return json && json.body && typeof json.body === 'object' ? json.body : json;\n}\n\n// A seen-list that survives between runs of the workflow. n8n resets static\n// data when a workflow is re-published; that is acceptable here because the\n// sheet node below is the durable record and it keys on the email address, so\n// the worst a reset can cost is one extra draft nobody has opened - never a\n// second row, and never a second message, because nothing in this workflow\n// can send.\nvar stored = $getWorkflowStaticData('global');\nif (!Array.isArray(stored.seenEmails)) {\n stored.seenEmails = [];\n}\nif (stored.seenEmails.length > 2000) {\n stored.seenEmails = stored.seenEmails.slice(-1000);\n}\n\nvar out = [];\n\nfor (var item of $input.all()) {\n var raw = unwrap(item.json) || {};\n var flat = {};\n\n for (var entry of Object.entries(raw)) {\n var folded = fold(entry[0]);\n var value = text(entry[1]);\n if (!value) {\n continue;\n }\n for (var pair of Object.entries(ALIAS)) {\n var canon = pair[0];\n var names = pair[1];\n if (!flat[canon] && (folded === canon || names.indexOf(folded) !== -1)) {\n flat[canon] = value;\n }\n }\n }\n\n var email = (flat.email || '').toLowerCase();\n var ok = 'yes';\n var reason = '';\n\n if (!email) {\n ok = 'no';\n reason = 'no email in what was posted';\n } else if (!EMAIL.test(email)) {\n ok = 'no';\n reason = 'the email value is not an address: ' + email;\n } else if (stored.seenEmails.indexOf(email) !== -1) {\n ok = 'no';\n reason = 'already handled since this workflow was last published';\n }\n\n if (ok === 'yes') {\n stored.seenEmails.push(email);\n }\n\n var lead = {\n ok: ok,\n reason: reason,\n email: email,\n name: flat.name || '',\n phone: flat.phone || '',\n source: flat.source || '',\n message: flat.message || '',\n leadDate: flat.leadDate || '',\n receivedAt: $now.toISO()\n };\n\n if (ok === 'yes' || SHOW_REJECTED) {\n out.push({ json: lead });\n }\n}\n\nreturn out;\n" }, "id": "0f1e2d3c-0002-4a00-8000-000000000002", "name": "Normalize and check", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -160, 300 ] }, { "parameters": { "operation": "append", "documentId": { "__rl": true, "mode": "list", "value": "", "cachedResultName": "" }, "sheetName": { "__rl": true, "mode": "list", "value": "", "cachedResultName": "" }, "columns": { "mappingMode": "defineBelow", "value": { "receivedAt": "={{ $json.receivedAt }}", "leadDate": "={{ $json.leadDate }}", "name": "={{ $json.name }}", "email": "={{ $json.email }}", "phone": "={{ $json.phone }}", "source": "={{ $json.source }}", "message": "={{ $json.message }}" }, "matchingColumns": [], "schema": [] }, "options": {} }, "credentials": { "googleSheetsOAuth2Api": { "id": "", "name": "Google Sheets account" } }, "id": "0f1e2d3c-0003-4a00-8000-000000000003", "name": "Add the lead row", "type": "n8n-nodes-base.googleSheets", "typeVersion": 4.5, "position": [ 80, 300 ] }, { "parameters": { "resource": "draft", "operation": "create", "emailType": "to", "sendTo": "={{ $json.email }}", "subject": "=Re: your enquiry", "message": "=Hi {{ $json.name ? $json.name.split(' ')[0] : 'there' }},\n\nThanks for getting in touch{{ $json.source ? ' about ' + $json.source : '' }}. Your details are recorded and I will reply to this address.\n\nThis is what arrived:\n{{ $json.message ? $json.message : '(nothing was written in the form)' }}", "options": {} }, "credentials": { "gmailOAuth2": { "id": "", "name": "Gmail account" } }, "id": "0f1e2d3c-0004-4a00-8000-000000000004", "name": "Create the reply draft", "type": "n8n-nodes-base.gmail", "typeVersion": 2.1, "position": [ 320, 300 ] } ], "connections": { "New lead arrives": { "main": [ [ { "node": "Normalize and check", "type": "main", "index": 0 } ] ] }, "Normalize and check": { "main": [ [ { "node": "Add the lead row", "type": "main", "index": 0 } ] ] }, "Add the lead row": { "main": [ [ { "node": "Create the reply draft", "type": "main", "index": 0 } ] ] } }, "active": false, "settings": { "executionOrder": "v1" }, "pinData": {}, "meta": { "readDate": "2026-11-10", "recipe": "R1 of the Back-Office Autopilot pack", "note": "The last node creates a Gmail DRAFT. Nothing in this workflow can send a message: a draft waits in the Drafts folder until a human opens it and presses send. Four values are yours to set - the two credentials, the spreadsheet and the tab. See SETUP.md." } }