About this recipe
A recipe for Classify Lemlist Replies Using Openai And Automate Reply Handling
Recipe Template
{
"meta": {
"instanceId": "2b1cc1a8b0a2fb9caab11ab2d5eb3712f9973066051b2e898cf4041a1f2a7757",
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "7786165e-5e74-4614-b065-86db19482b72",
"name": "Format text with Markdown",
"type": "n8n-nodes-base.markdown",
"position": [
-1200,
980
],
"parameters": {
"html": "={{ $json.text }}",
"options": [],
"destinationKey": "textClean"
},
"typeVersion": 1,
"continueOnFail": true
},
{
"id": "8f73d4d6-2473-4fdf-8797-c049d6df6967",
"name": "Lemlist Trigger - On new reply",
"type": "n8n-nodes-base.lemlistTrigger",
"position": [
-1600,
980
],
"webhookId": "039bb443-8d2a-4eb3-9c16-772943a46db7",
"parameters": {
"event": "emailsReplied",
"options": {
"isFirst": true
}
},
"typeVersion": 1
},
{
"id": "1f94d672-0a70-45ad-bf96-72c4aecabcd0",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1700,
680
],
"parameters": {
"width": 304.92548549441915,
"height": 504.9663351162785,
"content": "### Get your lemlist API key\n\n1. Go to your lemlist account or create one [HERE](https:\/\/app.lemlist.com\/create-account)\n\n2. Go to Settings -> Integrations\n\n3. Generate your API Key and copy it\n\n4. On this node, click on create new credential and paste your API key"
},
"typeVersion": 1
},
{
"id": "3032b04c-76a2-4f7c-a790-ede26b102254",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2040,
680
],
"parameters": {
"width": 319.6621253622332,
"height": 507.1074887209538,
"content": "# Read me\n\nThis workflow send email replies of your lemlist campaigns to the Slack channel of your choice.\n\nThe OpenAI node will classify the reply status. \n\nThe Slack alert is structured in a way that make it easy to read for the user."
},
"typeVersion": 1
},
{
"id": "df142fcb-f5ec-475d-8f90-c0bd064d390c",
"name": "OpenAI Chat Model",
"type": "@n8n\/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-760,
1320
],
"parameters": {
"model": "gpt-4o",
"options": []
},
"typeVersion": 1
},
{
"id": "1fa6d12c-2555-42c6-8f80-b24dc3608ed7",
"name": "Structured Output Parser",
"type": "@n8n\/n8n-nodes-langchain.outputParserStructured",
"position": [
-600,
1320
],
"parameters": {
"schemaType": "manual",
"inputSchema": "{\n\t\"type\": \"object\",\n\t\"properties\": {\n\t\t\"category\": {\n\t\t\t\"type\": \"string\"\n }\n\t}\n}"
},
"typeVersion": 1.2
},
{
"id": "734013f9-d058-4f08-9026-a41cd5877a3b",
"name": "Send alert to Slack",
"type": "n8n-nodes-base.slack",
"position": [
320,
700
],
"parameters": {
"text": "=",
"select": "channel",
"blocksUi": "={\n\t\"blocks\": [\n\t\t{\n\t\t\t\"type\": \"section\",\n\t\t\t\"text\": {\n\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\"text\": \":raised_hands: New reply in lemlist!\\n\"\n\t\t\t}\n\t\t},\n\t\t{\n\t\t\t\"type\": \"section\",\n\t\t\t\"fields\": [\n\t\t\t\t{\n\t\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\t\"text\": \"*Categorized as:*\\n{{ $json[\"output\"][\"category\"] }}\"\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\t\"text\": \"*Campaign:*\\n<https:\/\/app.lemlist.com\/teams\/{{ $json[\"teamId\"] }}\/reports\/campaigns\/{{ $json[\"campaignId\"] }}|{{ $json[\"campaignName\"] }}>\"\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\t\"text\": \"*Sender Email:*\\n{{ $json[\"sendUserEmail\"] }}\"\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\t\"text\": \"*Lead Email:*\\n{{ $json[\"leadEmail\"] }}\"\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\t\"text\": \"*Linkedin URL:*\\n{{ $json[\"linkedinUrl\"] }}\"\n\t\t\t\t}\n\t\t\t]\n\t\t},\n\t\t{\n\t\t\t\"type\": \"section\",\n\t\t\t\"text\": {\n\t\t\t\t\"type\": \"mrkdwn\",\n\t\t\t\t\"text\": \"*Reply preview*:\\n{{ JSON.stringify($json[\"textClean\"]).replace(\/^\"(.+(?=\"$))\"$\/, '$1').substring(0, 100) }}\"\n\t\t\t}\n\t\t}\n\t]\n}",
"channelId": {
"__rl": true,
"mode": "name",
"value": "automated_outbound_replies"
},
"messageType": "block",
"otherOptions": {
"botProfile": {
"imageValues": {
"icon_emoji": ":fire:",
"profilePhotoType": "emoji"
}
},
"unfurl_links": false,
"includeLinkToWorkflow": false
}
},
"typeVersion": 2.1
},
{
"id": "0558c166-16d7-4c26-a09c-fb46c2b6b687",
"name": "Lemlist - Unsubscribe",
"type": "n8n-nodes-base.lemlist",
"position": [
300,
1000
],
"parameters": {
"email": "={{ $json[\"leadEmail\"] }}",
"resource": "lead",
"operation": "unsubscribe",
"campaignId": "={{$json[\"campaignId\"]}}"
},
"typeVersion": 1
},
{
"id": "79d17d20-a60a-4b5a-a83c-821cac265b17",
"name": "lemlist - Mark as interested",
"type": "n8n-nodes-base.httpRequest",
"position": [
300,
1260
],
"parameters": {
"url": "=https:\/\/api.lemlist.com\/api\/campaigns\/{{$json[\"campaignId\"]}}\/leads\/{{$json[\"leadEmail\"]}}\/interested",
"options": [],
"requestMethod": "POST",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "lemlistApi"
},
"typeVersion": 2
},
{
"id": "04f74337-903c-481a-95ca-a1d4a5985b9e",
"name": "Categorize lemlist reply",
"type": "@n8n\/n8n-nodes-langchain.chainLlm",
"position": [
-780,
1120
],
"parameters": {
"text": "=Classify the [email_content] in one only of the following categories: \n\nCategories=[\"Interested\", \"Out of office\", \"Unsubscribe\", \"Not interested\", \"Other\"] \n\n- Interested is when the reply is positive, and the person want more information or a meeting \n\nDon't output quotes like in the next example: \nemail_content_example:Hey I would like to know more \ncategory:Interested\n\nemail_content:\"{{ $json.textClean }}\" \n\nOnly answer with JSON in the following format:\n{\"replyStatus\":category}\n\nJSON:",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.4
},
{
"id": "c1d66785-e096-4fd7-90de-51c7b9117413",
"name": "Merge data",
"type": "n8n-nodes-base.merge",
"position": [
-280,
1000
],
"parameters": {
"mode": "combine",
"options": [],
"combinationMode": "mergeByPosition"
},
"typeVersion": 2.1
},
{
"id": "bf21f5b9-6978-4657-a0a2-847265cff31e",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
260,
520
],
"parameters": {
"width": 480.38008828116847,
"height": 341.5885389153657,
"content": "### Create a Slack notification for each new replies\n\n1. Connect your Slack account by clicking to add Credentials\n\n2. Write the name of the channel where you want to send the Slack alert"
},
"typeVersion": 1
},
{
"id": "024b4399-8e20-4974-986d-6c1ee4103fa0",
"name": "Route reply to the right branch",
"type": "n8n-nodes-base.switch",
"position": [
-100,
1000
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "Send all replies to Slack",
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"operator": {
"type": "string",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.output.category }}",
"rightValue": ""
}
]
},
"renameOutput": true
},
{
"outputKey": "Unsubscribe",
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "9ad6f5cd-8c50-4710-8eaf-085e8f11f202",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.output.category }}",
"rightValue": "Unsubscribe"
}
]
},
"renameOutput": true
},
{
"outputKey": "Interested",
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "cb410bcc-a70c-4430-aec1-b71f3f615c4d",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.output.category }}",
"rightValue": "Interested"
}
]
},
"renameOutput": true
}
]
},
"options": {
"allMatchingOutputs": true
}
},
"typeVersion": 3
},
{
"id": "f9f23daa-f7a9-49f9-8ffb-16798656af73",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
260,
900
],
"parameters": {
"width": 480.38008828116847,
"height": 256.5682017131378,
"content": "### Save time by automatically unsubscribing leads that don't want to receive emails from you"
},
"typeVersion": 1
},
{
"id": "63c536bd-e624-4118-b0c8-38c07f2d1955",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
260,
1200
],
"parameters": {
"width": 480.38008828116847,
"height": 256.5682017131378,
"content": "### Mark interested leads as interested in lemlist"
},
"typeVersion": 1
},
{
"id": "8ed8b714-8196-4593-87b8-18c6a7318fbe",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-880,
875.46282303881
],
"parameters": {
"width": 480.38008828116847,
"height": 608.2279357257166,
"content": "### Categorize the reply with OpenAI"
},
"typeVersion": 1
},
{
"id": "6b1846df-0214-4383-87cf-55232093ae2a",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1320,
880
],
"parameters": {
"width": 336.62085535637357,
"height": 311.3046602455328,
"content": "### This node will clean the text and make sure it looks pretty on Slack"
},
"typeVersion": 1
},
{
"id": "f7378ecd-e8d2-4204-a883-3161be601ffc",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
-220,
880
],
"parameters": {
"width": 336.62085535637357,
"height": 311.3046602455328,
"content": "### Trigger a different scenario according to the category of the reply"
},
"typeVersion": 1
}
],
"pinData": [],
"connections": {
"Merge data": {
"main": [
[
{
"node": "Route reply to the right branch",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Categorize lemlist reply",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Categorize lemlist reply": {
"main": [
[
{
"node": "Merge data",
"type": "main",
"index": 1
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Categorize lemlist reply",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Format text with Markdown": {
"main": [
[
{
"node": "Merge data",
"type": "main",
"index": 0
},
{
"node": "Categorize lemlist reply",
"type": "main",
"index": 0
}
]
]
},
"Lemlist Trigger - On new reply": {
"main": [
[
{
"node": "Format text with Markdown",
"type": "main",
"index": 0
}
]
]
},
"Route reply to the right branch": {
"main": [
[
{
"node": "Send alert to Slack",
"type": "main",
"index": 0
}
],
[
{
"node": "Lemlist - Unsubscribe",
"type": "main",
"index": 0
}
],
[
{
"node": "lemlist - Mark as interested",
"type": "main",
"index": 0
}
]
]
}
}
}How to Use an n8n Template
1
Create a New Workflow
Click "New Workflow" in your n8n dashboard to get started.
2
Copy & Paste Template
First, copy this template:
Click here to copy the JSON
.
Then, in n8n, click the three dots (···) → "Import from file" and paste the JSON code.
3
Customize the Nodes
Go through each node in the workflow to update inputs like spreadsheet IDs, email addresses, or message content. Adjust field mappings to match your data.
4
Grant Access
For nodes that connect to external apps (like Google Sheets or Slack), you'll need to grant access. Connect your accounts using OAuth or an API key and save the credentials in the node.
5
Test It
Run the workflow by clicking "Execute Node" for each step or "Run Once" for the whole thing. Check the right sidebar to inspect data and debug any errors (they'll show up in red).
6
Activate Workflow
Once everything works as expected, click the "Activate" toggle to turn your workflow on. You're all set!