Create a WhatsApp customer support bot with OpenAI, calendar & email integration

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Important notice

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

1. Workflow Overview

Who’s it for This template is for businesses, customer support teams, and professionals who want to deliver AI powered WhatsApp assistance . It helps automate conversations, schedule meetings, answ...

Best for

Support Chatbot automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.executeworkflowtrigger, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.googlecalendartool, @n8n/n8n-nodes-langchain.toolworkflow, @n8n/n8n-nodes-langchain.vectorstoresupabase, @n8n/n8n-nodes-langchain.embeddingsopenai, n8n-nodes-base.gmailtool, @n8n/n8n-nodes-langchain.agent

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Create a WhatsApp customer support bot with OpenAI, calendar & email integration
Workflow name: Create a WhatsApp customer support bot with OpenAI, calendar & email integration

Who’s it for

This template is for businesses, customer support teams, and professionals who want to deliver AI-powered WhatsApp assistance. It helps automate conversations, schedule meetings, answer FAQs, and send follow-up emails — all from WhatsApp.

How it works

A customer sends a WhatsApp message, which is captured by the Twilio Trigger.
The incoming text is formatted and passed to the AI Support Agent.
Based on the request, the agent can:
- Manage Google Calendar events (create, list, delete).
- Answer questions from your knowledge base (Supabase + embeddings).
- Draft and send emails via Gmail.
- Reply directly on WhatsApp with the appropriate response.

How to set up

Connect your Twilio account with WhatsApp enabled.
Add your OpenAI API key.
Connect Google Calendar.
Connect Gmail.
Configure Supabase for knowledge base storage.

Requirements

Twilio account (with WhatsApp number)
OpenAI API key
Google Calendar
Gmail account
Supabase project

How to customize

Update the Set Fields node with your Twilio number, API keys, and Gmail details.
Add custom documents to Supabase for domain-specific FAQs.
Adjust AI prompts for different roles (e.g., booking bot, HR assistant, customer support).
Extend by adding more tools (CRM, Slack, Notion, etc.) as needed.

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 - When Executed by Another Workflow

Type / Role: n8n-nodes-base.executeWorkflowTrigger - executeWorkflowTrigger
Config choices: Version 1.1

Block 2 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 3 - Get many events in Google Calendar

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

Block 4 - Create an event in Google Calendar

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

Block 5 - Delete an event in Google Calendar

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

Block 6 - Create an event in Google Calendar1

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

Block 7 - Calendar Tool

Type / Role: @n8n/n8n-nodes-langchain.toolWorkflow - toolWorkflow
Config choices: Version 2.2

Block 8 - Knowledge Base Tool

Type / Role: @n8n/n8n-nodes-langchain.toolWorkflow - toolWorkflow
Config choices: Version 2.2

Block 9 - Email Tool

Type / Role: @n8n/n8n-nodes-langchain.toolWorkflow - toolWorkflow
Config choices: Version 2.2

Block 10 - OpenAI Chat Model1

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 11 - Supabase Vector Store

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

Block 12 - Embeddings OpenAI

Type / Role: @n8n/n8n-nodes-langchain.embeddingsOpenAi - embeddingsOpenAi
Config choices: Version 1.2

Block 13 - OpenAI Chat Model2

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 14 - Send a message in Gmail

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 15 - OpenAI Chat Model3

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 16 - WhatsApp AI Support Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 17 - Knowledge Base Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 18 - Conversation Memory (Postgres)

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

Block 19 - Calendar Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 20 - Email Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 21 - Send WhatsApp Reply

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

Block 22 - Incoming WhatsApp Message

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

Block 23 - Format Incoming Message

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

Block 24 - Sticky Note

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

Showing the first 24 of 27 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Create a WhatsApp customer support bot with OpenAI, calendar & email integration
Complexity	advanced
Nodes	27
Categories	Support Chatbot, AI Chatbot
Author	Nabin Bhandari
Published	05 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8287/8287.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 Support Chatbot workflows AI Chatbot workflows

Frequently asked questions

What does Create a WhatsApp customer support bot with OpenAI, calendar & email integration 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 Support Chatbot, AI Chatbot use case.

Nabin Bhandari

7 workflows

Nodes

n8n-nodes-base.executeworkflowtrigger @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.googlecalendartool @n8n/n8n-nodes-langchain.toolworkflow @n8n/n8n-nodes-langchain.vectorstoresupabase @n8n/n8n-nodes-langchain.embeddingsopenai n8n-nodes-base.gmailtool @n8n/n8n-nodes-langchain.agent

Complexity

advanced

Published 05 Sept 2025

Likes 0

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Install path: /data/workflows/8287/8287.json

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Create a WhatsApp customer support bot with OpenAI, calendar & email integration

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

How it works

How to set up

Requirements

How to customize

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When Executed by Another Workflow

Block 2 - OpenAI Chat Model

Block 3 - Get many events in Google Calendar

Block 4 - Create an event in Google Calendar

Block 5 - Delete an event in Google Calendar

Block 6 - Create an event in Google Calendar1

Block 7 - Calendar Tool

Block 8 - Knowledge Base Tool

Block 9 - Email Tool

Block 10 - OpenAI Chat Model1

Block 11 - Supabase Vector Store

Block 12 - Embeddings OpenAI

Block 13 - OpenAI Chat Model2

Block 14 - Send a message in Gmail

Block 15 - OpenAI Chat Model3

Block 16 - WhatsApp AI Support Agent

Block 17 - Knowledge Base Agent

Block 18 - Conversation Memory (Postgres)

Block 19 - Calendar Agent

Block 20 - Email Agent

Block 21 - Send WhatsApp Reply

Block 22 - Incoming WhatsApp Message

Block 23 - Format Incoming Message

Block 24 - 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