Amit Mehta This workflow corresponds to n8n.io template #4483 — we link there as the canonical source.
This workflow follows the Agent → Google Sheets recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"id": "YOUR_WORKFLOW_ID",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "LinkedIn Post Automation with AI & Slack Approval",
"tags": [],
"nodes": [
{
"id": "workflow-overview-linkedin",
"name": "Workflow Overview",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1050,
-450
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "sheets-trigger-note",
"name": "Sheets Trigger Info",
"type": "n8n-nodes-base.stickyNote",
"position": [
-750,
-400
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "ai-generation-note",
"name": "AI Generation",
"type": "n8n-nodes-base.stickyNote",
"position": [
130,
-400
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "slack-approval-note",
"name": "Slack Approval",
"type": "n8n-nodes-base.stickyNote",
"position": [
730,
-380
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "webhook-handler-note",
"name": "Webhook Handler",
"type": "n8n-nodes-base.stickyNote",
"position": [
-750,
-800
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "image-upload-note",
"name": "Image Upload Process",
"type": "n8n-nodes-base.stickyNote",
"position": [
950,
-800
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "linkedin-publish-note",
"name": "LinkedIn Publishing",
"type": "n8n-nodes-base.stickyNote",
"position": [
1450,
-780
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "status-update-note",
"name": "Status Update",
"type": "n8n-nodes-base.stickyNote",
"position": [
2110,
-900
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "0cd3e628-1720-49f7-9280-a1039d2c2ca9",
"name": "Limit",
"type": "n8n-nodes-base.limit",
"notes": "Processes one item at a time to prevent API overload",
"position": [
-260,
-180
],
"parameters": {},
"typeVersion": 1
},
{
"id": "c36d36d6-0035-49ac-a757-4598d56e574e",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
328,
40
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "9f521172-07f4-4a17-b358-bd998e9a9d02",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
208,
40
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "09b0b22f-eb64-468f-85b0-1c9a0608631e",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"notes": "Receives approval responses - ensure URL is configured in Slack app",
"position": [
-700,
-590
],
"parameters": {},
"typeVersion": 2
},
{
"id": "4e2954d7-e4de-48bf-a974-5ec80c7b7b0c",
"name": "Linkedin-Post-Topic",
"type": "n8n-nodes-base.googleSheetsTrigger",
"notes": "Triggers every minute for new posts in your spreadsheet",
"position": [
-700,
-180
],
"parameters": {},
"typeVersion": 1
},
{
"id": "47c4cdd0-48ef-4e41-996b-ed29811b092e",
"name": "Validate-Status",
"type": "n8n-nodes-base.if",
"notes": "Filters to process only 'Pending' items - prevents duplicates",
"position": [
-480,
-180
],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "908eee31-78eb-482c-b331-2d3467d56b0d",
"name": "Linedin-Post-Creator",
"type": "@n8n/n8n-nodes-langchain.agent",
"notes": "Uses GPT-4 to generate LinkedIn content - customize prompt for your brand voice",
"position": [
180,
-180
],
"parameters": {},
"typeVersion": 1.9
},
{
"id": "882d6e5c-a7f0-425f-a501-1f7179f8857b",
"name": "Format-Content",
"type": "n8n-nodes-base.code",
"notes": "Formats content for Slack display - handles special characters and newlines",
"position": [
556,
-180
],
"parameters": {},
"typeVersion": 2
},
{
"id": "31aea874-516c-47c7-9c5f-bde873faae4d",
"name": "Approval-on-Slack",
"type": "n8n-nodes-base.slack",
"notes": "Sends for human review - edit the Slack user to change approver",
"position": [
780,
-180
],
"parameters": {},
"notesInFlow": true,
"typeVersion": 2.3
},
{
"id": "8592224a-0370-48c3-b803-fe3653284545",
"name": "Format-Response",
"type": "n8n-nodes-base.code",
"notes": "Extracts edited content from Slack response",
"position": [
-260,
-590
],
"parameters": {},
"typeVersion": 2
},
{
"id": "2c503653-e3b6-4229-a733-25fa666ba85a",
"name": "Validate-Response",
"type": "n8n-nodes-base.if",
"notes": "Ensures response contains content before proceeding",
"position": [
-40,
-590
],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "be68592f-f6a8-4698-8343-58d439eed3ac",
"name": "Set-Final-Message",
"type": "n8n-nodes-base.set",
"notes": "Prepares approved content for publishing",
"position": [
180,
-590
],
"parameters": {},
"typeVersion": 3.4
},
{
"id": "4ec34acf-1704-4fd7-b14d-680409acbeda",
"name": "Linkedin-User-Detail",
"type": "n8n-nodes-base.httpRequest",
"notes": "Fetches LinkedIn user ID for post attribution",
"position": [
400,
-580
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "78293261-7fbd-4757-8353-c2275ba2089a",
"name": "Linkedin-post",
"type": "n8n-nodes-base.httpRequest",
"notes": "Publishes to your profile - update with your LinkedIn credentials",
"position": [
1500,
-590
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "54ee84f1-42e2-4f25-96a4-958b27f798f4",
"name": "Get-Group-id",
"type": "n8n-nodes-base.googleSheets",
"notes": "Retrieves LinkedIn group IDs from Groups sheet",
"position": [
1720,
-590
],
"parameters": {},
"typeVersion": 4.5
},
{
"id": "4e3e1fc5-a0ae-469f-8399-79b9bf98ff41",
"name": "Pick 1 by 1",
"type": "n8n-nodes-base.splitInBatches",
"notes": "Processes groups one at a time to avoid rate limits",
"position": [
1940,
-590
],
"parameters": {},
"typeVersion": 3
},
{
"id": "7309d6c0-bfec-4d06-b3c3-5b05ccab6df3",
"name": "Post-Linkedin-Groups",
"type": "n8n-nodes-base.httpRequest",
"notes": "Posts to multiple groups - add group IDs in Groups sheet",
"onError": "continueRegularOutput",
"position": [
2160,
-540
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "63b25ac7-e5dc-4836-96cf-5767b57c7784",
"name": "Update-Status",
"type": "n8n-nodes-base.googleSheets",
"notes": "Marks as 'Posted' to prevent reprocessing",
"position": [
2160,
-740
],
"parameters": {},
"typeVersion": 4.5
},
{
"id": "348ca4b6-fbb0-4a07-9c3d-9a581b95c7fe",
"name": "Register Image",
"type": "n8n-nodes-base.httpRequest",
"notes": "Initiates LinkedIn media upload - requires valid image URL from sheet",
"position": [
620,
-580
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "2dfdfc17-78f7-488b-82f2-cb229488062f",
"name": "Upload-Image-data",
"type": "n8n-nodes-base.set",
"notes": "Extracts upload URL and asset ID from LinkedIn response",
"position": [
840,
-580
],
"parameters": {},
"typeVersion": 3.4
},
{
"id": "a68a5ba8-8913-455f-9893-12013322e9c0",
"name": "Get Image Binary",
"type": "n8n-nodes-base.httpRequest",
"notes": "Downloads image from URL specified in spreadsheet",
"position": [
1060,
-590
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "37cfc754-d66f-43f8-b881-4b5f0e927fa2",
"name": "Upload Image",
"type": "n8n-nodes-base.httpRequest",
"notes": "Uploads image binary to LinkedIn servers",
"position": [
1280,
-590
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "c67c5ae9-c0c0-4400-a5ed-c2f96842e24d",
"name": "Edit Fields",
"type": "n8n-nodes-base.set",
"notes": "Extracts post ID for tracking through workflow",
"position": [
-40,
-180
],
"parameters": {},
"typeVersion": 3.4
},
{
"id": "8202c5f6-aa24-44d9-989e-b67d0c481e17",
"name": "Set Topics and Images for Processing",
"type": "n8n-nodes-base.code",
"notes": "Extracts post ID and image URL from Slack approval response",
"position": [
-480,
-600
],
"parameters": {},
"typeVersion": 2
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "YOUR_VERSION_ID",
"connections": {
"Limit": {
"main": [
[
{
"node": "Edit Fields",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Set Topics and Images for Processing",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields": {
"main": [
[
{
"node": "Linedin-Post-Creator",
"type": "main",
"index": 0
}
]
]
},
"Pick 1 by 1": {
"main": [
[
{
"node": "Update-Status",
"type": "main",
"index": 0
}
],
[
{
"node": "Post-Linkedin-Groups",
"type": "main",
"index": 0
}
]
]
},
"Get-Group-id": {
"main": [
[
{
"node": "Pick 1 by 1",
"type": "main",
"index": 0
}
]
]
},
"Upload Image": {
"main": [
[
{
"node": "Linkedin-post",
"type": "main",
"index": 0
}
]
]
},
"Linkedin-post": {
"main": [
[
{
"node": "Get-Group-id",
"type": "main",
"index": 0
}
]
]
},
"Update-Status": {
"main": [
[]
]
},
"Format-Content": {
"main": [
[
{
"node": "Approval-on-Slack",
"type": "main",
"index": 0
}
]
]
},
"Register Image": {
"main": [
[
{
"node": "Upload-Image-data",
"type": "main",
"index": 0
}
]
]
},
"Format-Response": {
"main": [
[
{
"node": "Validate-Response",
"type": "main",
"index": 0
}
]
]
},
"Validate-Status": {
"main": [
[
{
"node": "Limit",
"type": "main",
"index": 0
}
]
]
},
"Get Image Binary": {
"main": [
[
{
"node": "Upload Image",
"type": "main",
"index": 0
}
]
]
},
"Approval-on-Slack": {
"main": [
[]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Linedin-Post-Creator",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Set-Final-Message": {
"main": [
[
{
"node": "Linkedin-User-Detail",
"type": "main",
"index": 0
}
]
]
},
"Upload-Image-data": {
"main": [
[
{
"node": "Get Image Binary",
"type": "main",
"index": 0
}
]
]
},
"Validate-Response": {
"main": [
[
{
"node": "Set-Final-Message",
"type": "main",
"index": 0
}
]
]
},
"Linkedin-Post-Topic": {
"main": [
[
{
"node": "Validate-Status",
"type": "main",
"index": 0
}
]
]
},
"Linedin-Post-Creator": {
"main": [
[
{
"node": "Format-Content",
"type": "main",
"index": 0
}
]
]
},
"Linkedin-User-Detail": {
"main": [
[
{
"node": "Register Image",
"type": "main",
"index": 0
}
]
]
},
"Post-Linkedin-Groups": {
"main": [
[
{
"node": "Pick 1 by 1",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Linedin-Post-Creator",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Set Topics and Images for Processing": {
"main": [
[
{
"node": "Format-Response",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow automates the creation and publishing of LinkedIn posts with AI-generated content and human approval via Slack, using Google Sheets, OpenAI (GPT-4), Slack Interactive Messages, and the LinkedIn API.
Source: https://n8n.io/workflows/4483/ — original creator credit. Request a take-down →
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