Classify lemlist replies using OpenAI and automate reply handling

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Who this is for This workflow is for sales people who want to quickly and efficiently follow up with their leads What this workflow does This workflow starts every time a new reply is received in l...

Best for

CRM automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.markdown, n8n-nodes-base.lemlisttrigger, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.slack, n8n-nodes-base.lemlist, n8n-nodes-base.httprequest

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Lucas Perret.

Original n8n.io source

1.1 Workflow description

Title: Classify lemlist replies using OpenAI and automate reply handling
Workflow name: Classify lemlist replies using OpenAI and automate reply handling

Who this is for

This workflow is for sales people who want to quickly and efficiently follow up with their leads

What this workflow does

This workflow starts every time a new reply is received in lemlist. It then classifies the response using openAI and creates the correct follow up task. The follow-up tasks currently include:

Slack alerts when a lead for each new replies
Tag interested leads in lemlist
Unsubscription of leads when they request it

The Slack alerts include:

Lead email address
Sender email address
Reply type (positive, not interested...etc)
A preview of the reply

Setup

To set this template up, simply follow the stickies steps in it

How to customize this workflow to your needs

Adjust the follow up tasks to your needs
Change the Slack notification to your needs
...

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Format text with Markdown

Type / Role: n8n-nodes-base.markdown - markdown
Config choices: Version 1

Block 2 - Lemlist Trigger - On new reply

Type / Role: n8n-nodes-base.lemlistTrigger - lemlistTrigger
Config choices: Version 1

Block 3 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1

Block 6 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.2

Block 7 - Send alert to Slack

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.1

Block 8 - Lemlist - Unsubscribe

Type / Role: n8n-nodes-base.lemlist - lemlist
Config choices: Version 1

Block 9 - lemlist - Mark as interested

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 2

Block 10 - Categorize lemlist reply

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.4

Block 11 - Merge data

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 2.1

Block 12 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Route reply to the right branch

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3

Block 14 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Classify lemlist replies using OpenAI and automate reply handling
Complexity	advanced
Nodes	18
Categories	CRM, AI Summarization
Author	Lucas Perret
Published	10 Jun 2024

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/2287/2287.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source CRM workflows AI Summarization workflows

Frequently asked questions

What does Classify lemlist replies using OpenAI and automate reply handling do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your CRM, AI Summarization use case.

Lucas Perret

7 workflows

Nodes

n8n-nodes-base.markdown n8n-nodes-base.lemlisttrigger n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.outputparserstructured n8n-nodes-base.slack n8n-nodes-base.lemlist n8n-nodes-base.httprequest

Complexity

advanced

Published 10 Jun 2024

Likes 0

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Install path: /data/workflows/2287/2287.json

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Classify lemlist replies using OpenAI and automate reply handling

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who this is for

What this workflow does

Setup

How to customize this workflow to your needs

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Format text with Markdown

Block 2 - Lemlist Trigger - On new reply

Block 3 - Sticky Note

Block 4 - Sticky Note1

Block 5 - OpenAI Chat Model

Block 6 - Structured Output Parser

Block 7 - Send alert to Slack

Block 8 - Lemlist - Unsubscribe

Block 9 - lemlist - Mark as interested

Block 10 - Categorize lemlist reply

Block 11 - Merge data

Block 12 - Sticky Note2

Block 13 - Route reply to the right branch

Block 14 - Sticky Note3

Block 15 - Sticky Note4

Block 16 - Sticky Note5

Block 17 - Sticky Note6

Block 18 - Sticky Note7

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions