Send employee leave alerts from Google Sheets via Slack and Gmail

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1. Workflow Overview

Description Automate employee leave tracking and communication with structured notifications and reminders . This workflow checks a centralized Google Sheet daily to detect when leave period...

Best for

HR automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.scheduletrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.splitinbatches, n8n-nodes-base.slack, n8n-nodes-base.gmail

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Send employee leave alerts from Google Sheets via Slack and Gmail
Workflow name: Send employee leave alerts from Google Sheets via Slack and Gmail

📊 Description

Automate employee leave tracking and communication with structured notifications and reminders 📅📣. This workflow checks a centralized Google Sheet daily to detect when leave periods start or end. When leave begins, it notifies your HR Slack channel and reminds the employee to update their availability. When leave ends, it sends a return notification and follow-up reminder. All actions are reflected back in Google Sheets to maintain a single source of truth. Ideal for growing teams that want a simple, reliable way to manage leave visibility without manual follow-ups or status tracking.

What This Template Does

🌐 Runs automatically on a daily schedule 📄 Reads employee leave data from Google Sheets 🧮 Validates and evaluates leave start and end dates 🔀 Routes employees into activation or reset flows 📣 Sends Slack notifications to the HR or admin channel 📧 Sends reminder emails to employees at the right time 📊 Updates leave status in Google Sheets to prevent duplicates 🔁 Processes employees sequentially for reliable execution

Key Benefits

✅ Eliminates manual leave tracking ✅ Improves visibility for HR and leadership ✅ Ensures employees receive timely reminders ✅ Prevents duplicate notifications using status flags ✅ Keeps Google Sheets updated as the single source of truth ✅ Scales easily as your team grows

Features

Daily scheduled leave check
Google Sheets as centralized leave database
Smart activation and reset logic
Slack channel notifications
Automated employee reminder emails
Status tracking with idempotent processing
Sequential execution to avoid API rate limits
Configurable Slack channel settings

Requirements

Google Sheets OAuth2 credentials
Slack OAuth2 credentials
Gmail OAuth2 credentials
Google Sheet with the following columns:
Employee Email, Name, Start Date, End Date, Status, Last Updated

Target Audience

🏢 HR and People Operations teams 🚀 Growing startups managing distributed teams 📊 Operations teams needing structured leave tracking 🤖 Automation builders creating internal workflow systems

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 - Holiday Workflow Overview

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

Block 2 - Daily Leave Check Trigger

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

Block 3 - Fetch Leave Records

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 4 - Validate & Normalize Leave Data

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

Block 5 - Check Needs Activation

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

Block 6 - Check Needs Reset

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 7 - Process Activations Sequentially

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

Block 8 - Notify HR Channel

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.4

Block 9 - Send OOO Reminder Email

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

Block 10 - Process Resets Sequentially

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

Block 11 - Notify HR Leave Reset

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.4

Block 12 - Send Welcome Back Email

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

Block 13 - Mark Leave As Inactive

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 14 - Mark Leave as Active

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 15 - Sticky Note

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

Block 16 - Sticky Note1

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

Block 17 - Sticky Note2

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

3. Summary Table

Workflow	Send employee leave alerts from Google Sheets via Slack and Gmail
Complexity	advanced
Nodes	17
Categories	HR
Author	Rahul Joshi
Published	19 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13521/13521.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 HR workflows

Frequently asked questions

What does Send employee leave alerts from Google Sheets via Slack and Gmail do?

Description Automate employee leave tracking and communication with structured notifications and reminders . This workflow checks a centralized Google Sheet daily to detect when leave period...

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 HR use case.

Rahul Joshi

269 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.scheduletrigger n8n-nodes-base.googlesheets n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.splitinbatches n8n-nodes-base.slack n8n-nodes-base.gmail

Complexity

advanced

Published 19 Feb 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/13521/13521.json

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Send employee leave alerts from Google Sheets via Slack and Gmail

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

📊 Description

What This Template Does

Key Benefits

Features

Requirements

Target Audience

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Holiday Workflow Overview

Block 2 - Daily Leave Check Trigger

Block 3 - Fetch Leave Records

Block 4 - Validate & Normalize Leave Data

Block 5 - Check Needs Activation

Block 6 - Check Needs Reset

Block 7 - Process Activations Sequentially

Block 8 - Notify HR Channel

Block 9 - Send OOO Reminder Email

Block 10 - Process Resets Sequentially

Block 11 - Notify HR Leave Reset

Block 12 - Send Welcome Back Email

Block 13 - Mark Leave As Inactive

Block 14 - Mark Leave as Active

Block 15 - Sticky Note

Block 16 - Sticky Note1

Block 17 - Sticky Note2

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