WhatsApp support assistant with GPT-4 Mini & Google Sheets data training

Description

WhatsApp AI HelpDesk – Smart SupportBot Using Trained Data & WasenderAPI

Overview

This n8n workflow enables automated AI-driven support replies via your personal WhatsApp number using WasenderAPI.com. The bot intelligently responds to user messages based on trained data stored in Google Sheets, helping you avoid the high cost of WhatsApp Business API.

What It Does

Reads real-time data from a connected Google Sheet
Sends AI-generated responses based on predefined training data
Automatically applies rate limits to avoid account blocking
Updates each contact's support status after responding

Who’s It For

This workflow is ideal for:

Freelancers and small businesses offering support through WhatsApp
Customer service teams seeking to automate common queries
Entrepreneurs looking to deploy a cost-effective support assistant
SaaS founders managing WhatsApp inquiries without expensive API costs

Prerequisites

Make sure the following components are ready:

An active WhatsApp account (Personal or Business)
WasenderAPI subscription (around $6/month)
OpenAI API access (around $20/month)
n8n instance (self-hosted or cloud)
Google Sheets API connected to n8n
A training sheet like this sample:
https://docs.google.com/spreadsheets/d/1Ui4TzzI-Gq-bsEsrZELwW1Kyddw0IU9L1wxlHikktqw/edit?usp=sharing

Setup Instructions

1. Connect WasenderAPI

Add your WhatsApp session to WasenderAPI
In n8n, create a Webhook node
Copy the webhook URL and paste it into your WasenderAPI session settings

2. Connect OpenAI

Add an OpenAI node in n8n
Authenticate using your OpenAI credentials
Configure the prompt to reference the data from your Google Sheet

3. Connect Google Sheets

Add a Google Sheets node
Authenticate using your Google account
Select the appropriate Spreadsheet and Worksheet
Format your sheet similarly to the sample template above

How to Customize the Workflow

To tailor the workflow to your business needs:

Update the training data** in your Google Sheet to include your own FAQs, product info, or customer scripts
Adjust prompt instructions** in the OpenAI node to change the tone, style, or behavior of the response
Add filtering logic** using IF or SWITCH nodes to categorize and route different types of messages
Integrate CRM or ticketing systems** via additional HTTP or database nodes
Set custom response delay** or batching using WAIT or LIMIT nodes to control the load

Support & Community

Need help setting up or customizing the workflow? Reach out here:

WhatsApp: Chat with Support
Discord: Join SpaGreen Server
Facebook Group: SpaGreen Community
Website: SpaGreen Creative
Envato: SpaGreen Portfolio