Route support messages with GPT-4.1-mini, Slack, email and human review

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1. Workflow Overview

This workflow classifies incoming support messages from email or Slack, drafts AI generated replies for routine queries, and automatically pauses to notify a human agent for sensitive topics such a...

Best for

Ticket Management automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.webhook, n8n-nodes-base.scheduletrigger, n8n-nodes-base.set, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.filter, 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 Oneclick AI Squad.

Original n8n.io source

1.1 Workflow description

Title: Route support messages with GPT-4.1-mini, Slack, email and human review
Workflow name: Route support messages with GPT-4.1-mini, Slack, email and human review

This workflow classifies incoming support messages from email or Slack, drafts AI-generated replies for routine queries, and automatically pauses to notify a human agent for sensitive topics such as complaints, emotional distress, billing disputes, legal concerns, or escalation requests.

Who's it for

• Customer support teams handling 50+ messages per day • SaaS companies needing compliant, empathetic AI responses • E-commerce brands managing returns, refunds, and complaints • Any team that wants AI speed with human oversight on sensitive issues

How it works / What it does

Captures incoming messages from Email (webhook) or Slack
Normalizes message context (sender, channel, body, urgency signals)
AI classifies the message into a category and sensitivity tier
Routine queries → AI drafts reply → sent automatically
Sensitive queries → AI drafts reply → paused for human review
Human approves, edits, or rejects the draft via webhook resume
Final reply sent to customer via email or Slack
All interactions logged to Google Sheet with category, tier, and resolution

How to set up

Import this workflow
Configure credentials (Gmail/IMAP, Slack, OpenAI/Anthropic, Google Sheets)
Update your support tone, escalation keywords, and team Slack channel
Activate workflow

Requirements

• Gmail or IMAP webhook / Slack Events API • OpenAI / Anthropic / Grok API • Slack Bot Token (for human notifications) • Google Sheets for audit logging • HTTP endpoint for human approval webhook

How to customize the workflow

• Edit sensitivity tiers in the Python classification node • Change escalation keywords list • Update Slack notification channel and message template • Modify AI tone and persona in the AI draft node • Adjust wait timeout for human review window

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 - Sticky Note

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

Block 2 - Sticky Note1

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

Block 3 - Sticky Note2

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

Block 4 - Sticky Note3

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

Block 5 - Sticky Note4

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

Block 6 - Webhook - New Support Message

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 1.1

Block 7 - Poll Support Inbox

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 8 - Normalize Message Context

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 9 - Python - Classify Sensitivity Tier

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

Block 10 - AI - Classify and Draft Reply

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.6

Block 11 - JS - Parse AI Classification

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

Block 12 - Route - Sensitive or Routine?

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.2

Block 13 - Notify Human via Slack

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 14 - Webhook - Human Approval Response

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 1.1

Block 15 - Filter - Approved by Human?

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.2

Block 16 - Wait - Human Review Window

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

Block 17 - Send Reply to Customer

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 18 - Send Slack Reply (if Slack channel)

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 19 - Log to Support Audit Sheet

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 20 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.3

Block 21 - Wait For Result

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

3. Summary Table

Workflow	Route support messages with GPT-4.1-mini, Slack, email and human review
Complexity	advanced
Nodes	21
Categories	Ticket Management, AI Summarization
Author	Oneclick AI Squad
Published	17 Apr 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/15120/15120.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 Ticket Management workflows AI Summarization workflows

Frequently asked questions

What does Route support messages with GPT-4.1-mini, Slack, email and human review 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 Ticket Management, AI Summarization use case.

Oneclick AI Squad

224 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.webhook n8n-nodes-base.scheduletrigger n8n-nodes-base.set n8n-nodes-base.code @n8n/n8n-nodes-langchain.agent n8n-nodes-base.filter n8n-nodes-base.httprequest

Complexity

advanced

Published 17 Apr 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/15120/15120.json

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Route support messages with GPT-4.1-mini, Slack, email and human review

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who's it for

How it works / What it does

How to set up

Requirements

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note1

Block 3 - Sticky Note2

Block 4 - Sticky Note3

Block 5 - Sticky Note4

Block 6 - Webhook - New Support Message

Block 7 - Poll Support Inbox

Block 8 - Normalize Message Context

Block 9 - Python - Classify Sensitivity Tier

Block 10 - AI - Classify and Draft Reply

Block 11 - JS - Parse AI Classification

Block 12 - Route - Sensitive or Routine?

Block 13 - Notify Human via Slack

Block 14 - Webhook - Human Approval Response

Block 15 - Filter - Approved by Human?

Block 16 - Wait - Human Review Window

Block 17 - Send Reply to Customer

Block 18 - Send Slack Reply (if Slack channel)

Block 19 - Log to Support Audit Sheet

Block 20 - OpenAI Chat Model

Block 21 - Wait For Result

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