Triage and draft support email replies with Gmail and OpenAI GPT-4.1

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1. Workflow Overview

Quick Overview This workflow monitors a Gmail inbox for unread support emails, uses OpenAI powered multi agent triage to route each message to a billing, technical, or account specialist, and then ...

Best for

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

Tools used

n8n-nodes-base.gmailtrigger, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.gmail, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.agenttool

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Triage and draft support email replies with Gmail and OpenAI GPT-4.1
Workflow name: Triage and draft support email replies with Gmail and OpenAI GPT-4.1

Quick Overview

This workflow monitors a Gmail inbox for unread support emails, uses OpenAI-powered multi-agent triage to route each message to a billing, technical, or account specialist, and then creates a drafted reply back in the same Gmail thread for human review.

How it works

Triggers every minute when a new unread email arrives in Gmail.
Extracts and normalizes the sender email address, subject line, plain-text body, and Gmail thread ID.
Sends the email content to an OpenAI-based orchestrator that assigns priority and routes the request to exactly one specialist (Billing, Technical, or Account).
The selected specialist uses OpenAI to draft a domain-appropriate customer reply, while the orchestrator returns a structured result including category, priority, draft_reply, and whether human handling is needed.
Creates a Gmail draft reply using the generated text and attaches it to the original thread with a “Re:” subject for review before sending.

Setup

Connect a Gmail OAuth2 credential for both the Gmail Trigger (reading unread emails) and Gmail node that creates the draft reply.
Add an OpenAI API credential for the orchestrator model and each specialist model.
(Optional) Adjust the Gmail Trigger filters (for example, restrict to a specific support label) to control which emails are triaged.

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 - Gmail Trigger

Type / Role: n8n-nodes-base.gmailTrigger - gmailTrigger
Config choices: Version 1.4

Block 2 - Normalize Email

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

Block 3 - Support Orchestrator

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3.1

Block 4 - Orchestrator Model

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

Block 5 - Billing Model

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

Block 6 - Technical Model

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

Block 7 - Account Model

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

Block 8 - Reply Schema

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

Block 9 - Create Draft Reply

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

Block 10 - Sticky Note 166e6e8c

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

Block 11 - Sticky Note f77de6eb

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

Block 12 - Sticky Note 8e3bcf0a

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

Block 13 - Sticky Note 1d4bd4f5

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

Block 14 - Sticky Note d6126acc

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

Block 15 - Billing_Specialist

Type / Role: @n8n/n8n-nodes-langchain.agentTool - agentTool
Config choices: Version 3

Block 16 - Technical_Specialist

Type / Role: @n8n/n8n-nodes-langchain.agentTool - agentTool
Config choices: Version 3

Block 17 - Account_Specialist

Type / Role: @n8n/n8n-nodes-langchain.agentTool - agentTool
Config choices: Version 3

3. Summary Table

Workflow	Triage and draft support email replies with Gmail and OpenAI GPT-4.1
Complexity	advanced
Nodes	17
Categories	Ticket Management, AI Summarization
Author	Dr. Firas
Published	14 Jun 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/16340/16340.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 Triage and draft support email replies with Gmail and OpenAI GPT-4.1 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.

Dr. Firas

51 workflows

Nodes

n8n-nodes-base.gmailtrigger n8n-nodes-base.set @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.outputparserstructured n8n-nodes-base.gmail n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.agenttool

Complexity

advanced

Published 14 Jun 2026

Likes 0

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Install path: /data/workflows/16340/16340.json

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Triage and draft support email replies with Gmail and OpenAI GPT-4.1

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Quick Overview

How it works

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Gmail Trigger

Block 2 - Normalize Email

Block 3 - Support Orchestrator

Block 4 - Orchestrator Model

Block 5 - Billing Model

Block 6 - Technical Model

Block 7 - Account Model

Block 8 - Reply Schema

Block 9 - Create Draft Reply

Block 10 - Sticky Note 166e6e8c

Block 11 - Sticky Note f77de6eb

Block 12 - Sticky Note 8e3bcf0a

Block 13 - Sticky Note 1d4bd4f5

Block 14 - Sticky Note d6126acc

Block 15 - Billing_Specialist

Block 16 - Technical_Specialist

Block 17 - Account_Specialist

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