Manage Google Calendar events via WhatsApp with Gemini AI

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Who is this for? This workflow is for businesses and individuals who want to automate calendar management via WhatsApp using n8n. It’s ideal for appointment based services, consultants, and anyone ...

Best for

Personal Productivity automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.memorybufferwindow, n8n-nodes-base.googlecalendartool, n8n-nodes-base.stickynote, n8n-nodes-base.if, n8n-nodes-base.set, n8n-nodes-base.switch

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Manage Google Calendar events via WhatsApp with Gemini AI
Workflow name: Manage Google Calendar events via WhatsApp with Gemini AI

Who is this for?

This workflow is for businesses and individuals who want to automate calendar management via WhatsApp using n8n. It’s ideal for appointment-based services, consultants, and anyone who needs to streamline event scheduling, updates, or cancellations through a simple chat interface.

What problem is this workflow solving?

Manually managing calendar events is time-consuming and error-prone, especially when clients communicate through messaging apps like WhatsApp. This workflow solves the problem by connecting WhatsApp to Google Calendar, enabling users to manage events directly via chat, reducing administrative overhead and response times.

What this workflow does

This workflow enables WhatsApp-based interaction with Google Calendar. Users can:

Create new events
Update existing events
Delete events
Retrieve a list of scheduled events

Optionally, AI (like ChatGPT or Gemini) can be used to interpret natural language inputs, making the interaction even smoother.

Setup

Add credentials:
- WhatsApp: Connect your WhatsApp API (OAuth or other supported method).
- Google Calendar: Add your Google account credentials to allow calendar access.
- AI (optional): Add credentials for ChatGPT, Gemini, or another language model if using AI for natural language parsing.
Import the workflow into n8n and review all nodes.
Test the WhatsApp webhook to ensure it’s receiving messages correctly.
Connect to your Google Calendar and test event creation and retrieval.

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 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.8

Block 2 - Google Gemini Chat Model

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

Block 3 - Simple Memory

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

Block 4 - Get Calendar Event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 5 - Create Calendar Event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 6 - Update Calendar Event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 7 - Delete Calendar Event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 8 - Sticky Note2

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

Block 9 - Is start?

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

Block 10 - Initialization

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

Block 11 - Define Type

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 12 - Variables

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

Block 13 - Welcome message

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

Block 14 - Send Answer

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

Block 15 - WhatsApp Trigger

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

Block 16 - Sticky Note

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

3. Summary Table

Workflow	Manage Google Calendar events via WhatsApp with Gemini AI
Complexity	advanced
Nodes	16
Categories	Personal Productivity, AI Chatbot
Author	Andrew
Published	10 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/5853/5853.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 Personal Productivity workflows AI Chatbot workflows

Frequently asked questions

What does Manage Google Calendar events via WhatsApp with Gemini AI 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 Personal Productivity, AI Chatbot use case.

Andrew

18 workflows

Nodes

@n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatgooglegemini @n8n/n8n-nodes-langchain.memorybufferwindow n8n-nodes-base.googlecalendartool n8n-nodes-base.stickynote n8n-nodes-base.if n8n-nodes-base.set n8n-nodes-base.switch

Complexity

advanced

Published 10 Jul 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/5853/5853.json

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Manage Google Calendar events via WhatsApp with Gemini AI

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who is this for?

What problem is this workflow solving?

What this workflow does

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - AI Agent

Block 2 - Google Gemini Chat Model

Block 3 - Simple Memory

Block 4 - Get Calendar Event

Block 5 - Create Calendar Event

Block 6 - Update Calendar Event

Block 7 - Delete Calendar Event

Block 8 - Sticky Note2

Block 9 - Is start?

Block 10 - Initialization

Block 11 - Define Type

Block 12 - Variables

Block 13 - Welcome message

Block 14 - Send Answer

Block 15 - WhatsApp Trigger

Block 16 - Sticky Note

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