This workflow follows the Gmail → Google Sheets 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 →
{
"name": "Email Drafter",
"nodes": [
{
"parameters": {
"content": "## Email Drafter Workflow\n\nThis workflow:\n1. Monitors Gmail for important emails\n2. Relays them to Slack channel #salesemailsrelayed\n3. Generates AI draft replies in Brian's tone\n4. Posts drafts to Slack with action buttons\n5. Handles Save as Draft / Send actions\n\nRequired Credentials:\n- Gmail OAuth2\n- Slack OAuth2\n- OpenAI API Key",
"height": 380,
"width": 400
},
"id": "31621401-524b-4f2b-8dc1-0544c52c83e5",
"name": "Workflow Documentation",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
1760,
580
]
},
{
"parameters": {
"content": "## Slack Button Handler\n\nCreate a separate workflow with:\n1. Webhook trigger for Slack interactions\n2. Parse button action (save_draft/discard)\n3. If 'save_draft': Create Gmail draft\n4. Return acknowledgment to Slack\n\nWebhook URL: https://your-n8n.com/webhook/slack-interactions",
"height": 250,
"width": 400
},
"id": "b6c37964-2e37-4400-b72b-434f47eb518b",
"name": "Slack Button Handler Note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
1760,
1160
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "ffagent-testing",
"responseMode": "responseNode",
"options": {}
},
"id": "2695bbc9-047f-4651-a095-20ccac1af9bb",
"name": "Webhook - Slack Actions",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1.1,
"position": [
2340,
1140
]
},
{
"parameters": {
"jsCode": "const payload = JSON.parse($input.item.json.body.payload);\n\nreturn {\n action: payload.actions[0].action_id,\n emailId: payload.actions[0].value,\n responseUrl: payload.response_url,\n userId: payload.user.id,\n originalMessage: payload.message\n};"
},
"id": "7d9c3566-b5d4-49ab-b636-8ae290df445d",
"name": "Parse Slack Payload",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
2540,
1140
]
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 1
},
"conditions": [
{
"id": "1",
"leftValue": "={{$json[\"action\"]}}",
"rightValue": "save_draft",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "1d83ff37-0b6a-49ae-9735-77445361ff28",
"name": "Check Action Type",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
2740,
1140
]
},
{
"parameters": {
"resource": "draft",
"subject": "={{ $json.subject }}",
"message": "={{ $json.content }}",
"options": {
"sendTo": ""
}
},
"id": "7874a2f5-195a-4f32-a1d7-1180554b2e12",
"name": "Create Gmail Draft",
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.1,
"position": [
3240,
1020
],
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"respondWith": "json",
"responseBody": "{\"text\":\"\u2705 Draft saved to Gmail successfully!\"}",
"options": {}
},
"id": "e5694a40-c706-48de-9512-431d30d5ef95",
"name": "Respond Success",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
3460,
1020
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "{\"text\":\"\u274c Draft discarded\"}",
"options": {}
},
"id": "1b89136e-a176-4fa1-86b5-1cbafaf0c100",
"name": "Respond Discard",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
3460,
1240
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "1",
"name": "draftData.emailId",
"value": "={{ $('Slack Trigger1').item.json.files[0].id }}",
"type": "string"
},
{
"id": "2",
"name": "draftData.threadId",
"value": "={{ $('Slack Trigger1').item.json.bot_id }}",
"type": "string"
},
{
"id": "3",
"name": "draftData.to",
"value": "={{ $('Slack Trigger1').item.json.files[0].from[0].address }}",
"type": "string"
},
{
"id": "4",
"name": "draftData.subject",
"value": "={{ $('Slack Trigger1').item.json.files[0].subject }}",
"type": "string"
},
{
"id": "5",
"name": "draftData.draftContent",
"value": "={{ $json.message.content }}",
"type": "string"
}
]
},
"options": {}
},
"id": "259711a7-e771-47aa-ae8b-fe6307ba56a6",
"name": "Prepare Draft Data1",
"type": "n8n-nodes-base.set",
"typeVersion": 3.3,
"position": [
3120,
680
]
},
{
"parameters": {
"select": "channel",
"channelId": {
"__rl": true,
"value": "C090HS978TC",
"mode": "list",
"cachedResultName": "email-drafter"
},
"text": "=*AI Generated Draft Reply:*\nTo: {{ $json.draftData.to }}\n{{$json[\"draftData\"][\"draftContent\"]}}",
"otherOptions": {
"includeLinkToWorkflow": false
}
},
"id": "0b1043ea-ebd7-426e-91d6-68d1cc0032af",
"name": "Post Draft to Slack1",
"type": "n8n-nodes-base.slack",
"typeVersion": 2.1,
"position": [
3340,
680
],
"credentials": {
"slackApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"modelId": {
"__rl": true,
"value": "gpt-4.1",
"mode": "list",
"cachedResultName": "GPT-4.1"
},
"messages": {
"values": [
{
"content": "=You are an expert admin chatbot. Reply email based on the content here: {{ $json.files[0].plain_text }}\n\nHere's your style guide for responses:\n1. Brevity:\n- Concise responses\n- Short paragraphs (1-3 sentences)\n- No unnecessary words\n2. Clarity:\n- Simple, direct language\n- Explain technical terms if needed\n- Use bullet points for multiple items\n3. Structure:\n- Most important information first\n- Headings and subheadings\n- Tables for data/comparisons\n4. Tone:\n- Professional but approachable\n- Confident and authoritative\n- Neither too formal nor casual\n5. Formatting:\n- Markdown for emphasis\n- Bold for key points\n- Code blocks for technical content\n6. Responsiveness:\n- Address all parts of query\n- Offer more details if needed\n- Ask to clarify ambiguous points\n7. Accuracy:\n- Double-check facts/figures\n- Cite sources when needed\n- Admit uncertainty if present\n8. Customization:\n- Match user's knowledge level\n- Reference previous conversations\n- Use appropriate terminology\nEvery response should add value and move the conversation forward. ",
"role": "system"
}
]
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
2720,
680
],
"id": "326cc2c2-0955-4ed1-96a9-974c17c742c4",
"name": "OpenAI",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"method": "POST",
"url": "https://slack.com/api/chat.postMessage",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "slackOAuth2Api",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "channel",
"value": "=#email-drafter"
},
{
"name": "thread_ts",
"value": "={{ $json.message.ts }}"
},
{
"name": "blocks",
"value": "=[{\"type\":\"section\",\"text\":{\"type\":\"mrkdwn\",\"text\":\"*Actions for this draft:*\"}},{\"type\":\"actions\",\"block_id\":\"email_actions\",\"elements\":[{\"type\":\"button\",\"text\":{\"type\":\"plain_text\",\"text\":\"\ud83d\udcbe Save as Draft\"},\"style\":\"primary\",\"action_id\":\"save_draft\",\"value\":\"{{ $('Prepare Draft Data1').item.json.draftData.draftContent }}\"},{\"type\":\"button\",\"text\":{\"type\":\"plain_text\",\"text\":\"\u274c Discard\"},\"style\":\"danger\",\"action_id\":\"discard_draft\",\"value\":\"{{ $('Prepare Draft Data1').item.json.draftData.emailId }}\"}]}]"
},
{
"name": "to",
"value": "={{ $('Prepare Draft Data1').item.json.draftData.to }}"
}
]
},
"options": {}
},
"id": "1ae85a13-1eda-489c-a382-e87f836af9c2",
"name": "Post Buttons to Slack1",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.1,
"position": [
3560,
680
],
"credentials": {
"slackOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "const emailString = $json.emailId || '';\n\n// Split string per baris\nconst lines = emailString.split('\\n');\n\nlet subject = '';\nlet from = '';\nlet to = '';\nlet content = '';\n\n// Fungsi bantu untuk ekstrak field\nfunction extractField(field) {\n const regex = new RegExp('^' + field + ':\\\\s*(.+)', 'i');\n const match = lines.find(line => regex.test(line));\n return match ? match.replace(regex, '$1').trim() : '';\n}\n\n// Extract fields\nsubject = extractField('Subject');\nfrom = extractField('From');\nto = extractField('To');\n\n// Cari index baris terakhir dari header (subject/from/to)\nlet lastHeaderIdx = -1;\n['Subject', 'From', 'To'].forEach(field => {\n const idx = lines.findIndex(line => new RegExp('^' + field + ':', 'i').test(line));\n if (idx > lastHeaderIdx) lastHeaderIdx = idx;\n});\n\n// Content mulai setelah header terakhir\ncontent = lines.slice(lastHeaderIdx + 1).join('\\n').trim();\n\nreturn [{\n json: {\n subject,\n from,\n to,\n content\n }\n}];\n"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
2980,
1080
],
"id": "c4f82ace-b9e6-4a24-978d-2f774f97cea9",
"name": "Code"
},
{
"parameters": {
"operation": "append",
"documentId": {
"__rl": true,
"value": "1OXnBaamN_OuBbCttX7_swSLFFX8QBFjw0vlJvl148KU",
"mode": "list",
"cachedResultName": "Copy of Gmail Drafts + Sent",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1OXnBaamN_OuBbCttX7_swSLFFX8QBFjw0vlJvl148KU/edit?usp=drivesdk"
},
"sheetName": {
"__rl": true,
"value": "gid=0",
"mode": "list",
"cachedResultName": "Sheet1",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1OXnBaamN_OuBbCttX7_swSLFFX8QBFjw0vlJvl148KU/edit#gid=0"
},
"columns": {
"mappingMode": "defineBelow",
"value": {
"id": "={{ $json.id }}",
"timestamp": "={{ $now }}",
"original_email": "={{ $('Parse Slack Payload').item.json.emailId }}"
},
"matchingColumns": [
"id"
],
"schema": [
{
"id": "id",
"displayName": "id",
"required": false,
"defaultMatch": true,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "timestamp",
"displayName": "timestamp",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "original_email",
"displayName": "original_email",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ai_generated_reply",
"displayName": "ai_generated_reply",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "actual_reply_sent",
"displayName": "actual_reply_sent",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "sender_email",
"displayName": "sender_email",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "subject",
"displayName": "subject",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "category",
"displayName": "category",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "ai_model",
"displayName": "ai_model",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "similarity_score",
"displayName": "similarity_score",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "user_rating",
"displayName": "user_rating",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "used_ai_reply",
"displayName": "used_ai_reply",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "notes",
"displayName": "notes",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {}
},
"type": "n8n-nodes-base.googleSheets",
"typeVersion": 4.5,
"position": [
3680,
1020
],
"id": "726473c2-9145-44f8-9075-0f85f01ab125",
"name": "Google Sheets",
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"trigger": [
"any_event",
"message"
],
"channelId": {
"__rl": true,
"value": "C090HS978TC",
"mode": "list",
"cachedResultName": "email-drafter"
},
"options": {}
},
"type": "n8n-nodes-base.slackTrigger",
"typeVersion": 1,
"position": [
2440,
680
],
"id": "22f36b31-4772-45ec-bd3a-ae92261a438c",
"name": "Slack Trigger1",
"credentials": {
"slackApi": {
"name": "<your credential>"
}
}
}
],
"connections": {
"Webhook - Slack Actions": {
"main": [
[
{
"node": "Parse Slack Payload",
"type": "main",
"index": 0
}
]
]
},
"Parse Slack Payload": {
"main": [
[
{
"node": "Check Action Type",
"type": "main",
"index": 0
}
]
]
},
"Check Action Type": {
"main": [
[
{
"node": "Code",
"type": "main",
"index": 0
}
],
[
{
"node": "Respond Discard",
"type": "main",
"index": 0
}
]
]
},
"Create Gmail Draft": {
"main": [
[
{
"node": "Respond Success",
"type": "main",
"index": 0
}
]
]
},
"Prepare Draft Data1": {
"main": [
[
{
"node": "Post Draft to Slack1",
"type": "main",
"index": 0
}
]
]
},
"OpenAI": {
"main": [
[
{
"node": "Prepare Draft Data1",
"type": "main",
"index": 0
}
]
]
},
"Post Draft to Slack1": {
"main": [
[
{
"node": "Post Buttons to Slack1",
"type": "main",
"index": 0
}
]
]
},
"Code": {
"main": [
[
{
"node": "Create Gmail Draft",
"type": "main",
"index": 0
}
]
]
},
"Respond Success": {
"main": [
[
{
"node": "Google Sheets",
"type": "main",
"index": 0
}
]
]
},
"Slack Trigger1": {
"main": [
[
{
"node": "OpenAI",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "2994ae4b-5637-452c-b606-f7a3e58918fd",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "Xe0ji4DDoxjgP1M8",
"tags": []
}
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.
gmailOAuth2googleSheetsOAuth2ApiopenAiApislackApislackOAuth2Api
Pro
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About this workflow
Email Drafter. Uses gmail, slack, openAi, httpRequest. Webhook trigger; 15 nodes.
Source: https://github.com/adrisinaga/n8n-workflow/blob/main/Email_Drafter.json — original creator credit. Request a take-down →
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