Classify Gmail support emails with AI and store tickets in PostgreSQL

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1. Workflow Overview

Best for

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

Tools used

n8n-nodes-base.gmail, @n8n/n8n-nodes-langchain.textclassifier, @n8n/n8n-nodes-langchain.lmollama, n8n-nodes-base.postgres, n8n-nodes-base.code, n8n-nodes-base.noop, n8n-nodes-base.stickynote, n8n-nodes-base.gmailtrigger

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Jyothish S L.

Original n8n.io source

1.1 Workflow description

Title: Classify Gmail support emails with AI and store tickets in PostgreSQL
Workflow name: Classify Gmail support emails with AI and store tickets in PostgreSQL

This workflow automatically converts incoming Gmail messages into structured support tickets using AI classification. It assigns categories, generates a unique ticket ID, stores data in PostgreSQL, assigns a support agent based on workload, and sends an automated email reply to the customer.

⚙️ How it works Fetch email from Gmail AI classifies ticket (Payment, Login, Fraud, etc.) Generates unique ticket ID Stores ticket in PostgreSQL Assigns available support agent Logs assignment Sends email confirmation to customer

📦 Requirements

n8n (latest version)
Gmail OAuth2 credentials
PostgreSQL database
AI model (Ollama or compatible LLM)
Support tables:
tickets
support_persons
ticket_assignment_logs

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 - Get many messages

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

Block 2 - Text Classifier

Type / Role: @n8n/n8n-nodes-langchain.textClassifier - textClassifier
Config choices: Version 1.1

Block 3 - Ollama Model

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

Block 4 - Insert rows in a table

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.6

Block 5 - Code in JavaScript

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

Block 6 - Select rows from a table

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.6

Block 7 - Update rows in a table

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.6

Block 8 - Insert rows in a table1

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.6

Block 9 - Reply to a message

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

Block 10 - Code in JavaScript1

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

Block 11 - Code in JavaScript2

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

Block 12 - Code in JavaScript3

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

Block 13 - Code in JavaScript4

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

Block 14 - Code in JavaScript5

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

Block 15 - No Operation, do nothing

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

Block 16 - Sticky Note

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

Block 17 - Sticky Note1

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

Block 18 - Gmail Trigger

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

Block 19 - Sticky Note2

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

Block 20 - Sticky Note3

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

Block 21 - Sticky Note4

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

Block 22 - Sticky Note5

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

3. Summary Table

Workflow	Classify Gmail support emails with AI and store tickets in PostgreSQL
Complexity	advanced
Nodes	22
Categories	Ticket Management, AI Summarization
Author	Jyothish S L
Published	07 May 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/15522/15522.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 Classify Gmail support emails with AI and store tickets in PostgreSQL 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.

Jyothish S L

4 workflows

Nodes

n8n-nodes-base.gmail @n8n/n8n-nodes-langchain.textclassifier @n8n/n8n-nodes-langchain.lmollama n8n-nodes-base.postgres n8n-nodes-base.code n8n-nodes-base.noop n8n-nodes-base.stickynote n8n-nodes-base.gmailtrigger

Complexity

advanced

Published 07 May 2026

Likes 0

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Install path: /data/workflows/15522/15522.json

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Classify Gmail support emails with AI and store tickets in PostgreSQL

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Get many messages

Block 2 - Text Classifier

Block 3 - Ollama Model

Block 4 - Insert rows in a table

Block 5 - Code in JavaScript

Block 6 - Select rows from a table

Block 7 - Update rows in a table

Block 8 - Insert rows in a table1

Block 9 - Reply to a message

Block 10 - Code in JavaScript1

Block 11 - Code in JavaScript2

Block 12 - Code in JavaScript3

Block 13 - Code in JavaScript4

Block 14 - Code in JavaScript5

Block 15 - No Operation, do nothing

Block 16 - Sticky Note

Block 17 - Sticky Note1

Block 18 - Gmail Trigger

Block 19 - Sticky Note2

Block 20 - Sticky Note3

Block 21 - Sticky Note4

Block 22 - Sticky Note5

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