Organize Gmail inbox with Groq AI, Google Sheets and Google Tasks

Description

Smart Inbox Organizer using Gmail, Groq AI, Google Sheets & Google Tasks

This workflow automatically organizes your Gmail inbox using AI. It reads every incoming email, classifies it into Work, Personal, Financial or Newsletter, applies the correct Gmail label, logs the email details into Google Sheets and creates a task for financial emails.

Quick Setup Steps

Login to your n8n account.
Connect Gmail, Google Sheets, Google Tasks and Groq API
Create Gmail labels: Work, Personal, Financial, Newsletter
Update label IDs in Gmail nodes if needed
Set up a Google Sheet with columns: Sender, Subject, Category, Timestamp
Test the AI classification output
Activate the workflow

What It Does

The Smart Inbox Organizer workflow automates email management by combining Gmail triggers with AI-powered classification. Every time a new email arrives, the workflow captures its content and standardizes key fields like sender, subject and body.

An AI agent then analyzes the email and assigns it to one of four categories: Work, Personal, Financial or Newsletter. Based on this classification, the workflow routes the email to the appropriate action path.

It not only applies Gmail labels automatically but also logs structured data into Google Sheets for tracking and analytics. Additionally, financial emails are treated with higher importance by creating a task in Google Tasks for manual review, ensuring nothing critical is missed.

Who It's For

Professionals managing high email volumes
Freelancers and business owners tracking financial emails
Teams wanting structured inbox organization
Anyone looking to automate Gmail sorting and reduce manual effort

Requirements

To use this workflow, you will need:

n8n account (self-hosted or cloud)
Gmail account (with OAuth2 configured)
Google Sheets account
Google Tasks account
Groq API credentials (or any compatible LLM API)
Pre-created Gmail labels:
Work
Personal
Financial
Newsletter

How It Works & Set Up

Workflow Overview

Trigger: Watch Incoming Emails

Polls Gmail every minute for new emails

Normalize Email Fields

Extracts and standardizes:
Sender
Subject
Body
Timestamp
Email ID

AI Classification

Uses Groq AI model to classify email into:
Work
Personal
Financial
Newsletter

Merge Data

Combines original email data with AI output

Clean Category

Ensures consistent category output
Defaults to Personal if AI response is empty

Log to Google Sheets

Appends email details into a spreadsheet with:
Sender
Subject
Category
Timestamp

Routing

Switch node routes emails based on category

Actions per Category

Work → Apply Work Label
Personal → Apply Personal Label
Financial → Apply Finance Label + Create Google Task
Newsletter → Apply Newsletter Label

Setup Instructions

1. Connect Credentials

Gmail OAuth2
Google Sheets OAuth2
Google Tasks OAuth2
Groq API (or alternative LLM)

2. Configure Gmail Labels

Ensure these labels exist in your Gmail:

Work
Personal
Financial
Newsletter

Update label IDs in nodes according to your Gmail.

3. Configure Google Sheets

Use the provided document or create your own
Ensure columns:
Sender
Subject
Category
Timestamp

4. Configure AI Node

Verify prompt structure
Ensure output returns only one of:
Work / Personal / Financial / Newsletter

5. Activate Workflow

Test with sample emails
Activate once verified

How To Customize Nodes

AI Agent Node**
Modify prompt to add more categories
Adjust classification rules

Switch Node**
Add new routing conditions for additional categories

Gmail Nodes**
Change label IDs
Add actions like mark as read, star, etc.

Google Sheets Node**
Add more columns (e.g., email body, priority)

LLM Replacement**
Replace Groq model with OpenAI, Gemini or any supported LLM

Add-ons (Extend Functionality)

Slack/Email notifications for important emails
Priority scoring using AI
Auto-reply to specific categories
CRM integration (e.g., store leads from emails)
Sentiment analysis for customer emails
Daily/weekly email summary reports

Use Case Examples

Automated Work Inbox Sorting
Instantly separates professional emails from personal ones

Finance Tracking
Logs invoices, bills and transactions automatically
Creates tasks for follow-ups

Newsletter Management
Keeps promotional emails organized and out of main inbox

Personal Email Filtering
Ensures personal messages are easily accessible

Email Analytics Dashboard
Use Google Sheets data to analyze email trends

> There can be many more use cases depending on how you extend this workflow.

Troubleshooting Guide

| Issue | Possible Cause | Solution |
|------|--------------|---------|
| Emails not triggering workflow | Gmail trigger not active | Activate workflow and check credentials |
| Labels not applied | Incorrect label IDs | Verify and update Gmail label IDs |
| Wrong classification | AI prompt ambiguity | Refine prompt or add examples |
| No data in Google Sheets | Incorrect sheet configuration | Check document ID and sheet name |
| Tasks not created | Incorrect Google Tasks setup | Verify task list ID and credentials |
| Empty category value | AI output issue | Fallback defaults to "Personal" |
| Workflow errors | Credential issues | Reconnect all APIs |

Need Help?

If you need assistance with:

Setting up this workflow
Customizing nodes and logic
Adding advanced AI features
Integrating with your business tools

Reach out to our n8n automation developers at WeblineIndia for expert support. We specialize in building scalable automation workflows tailored to your business needs. Whether you want to extend this solution or create something entirely new, our n8n team is ready to help.