WhatsApp product catalog bot with PostgreSQL database

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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 designed for businesses or developers who want to integrate product information into a WhatsApp bot and allow users to retrieve details about products from a datab...

Best for

Lead Nurturing automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.whatsapptrigger, n8n-nodes-base.stickynote, n8n-nodes-base.whatsapp, n8n-nodes-base.postgres, n8n-nodes-base.if, n8n-nodes-base.switch, n8n-nodes-base.set, n8n-nodes-base.summarize

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: WhatsApp product catalog bot with PostgreSQL database
Workflow name: WhatsApp product catalog bot with PostgreSQL database

Who is this for?

This workflow is designed for businesses or developers who want to integrate product information into a WhatsApp bot and allow users to retrieve details about products from a database.

What problem is this workflow solving?

This workflow automates the process of managing and retrieving product information via WhatsApp, allowing businesses to easily share product details with customers without manual interaction.

What this workflow does

Basis version:

It adds product data to a Postgres database.
It enables a WhatsApp bot to retrieve a list of products.
Users can select a product to receive detailed information about it.

Additional version:

All features from Basis Version.
Get a list of product categories.
Get a list of products in a category.
Add product to cart.
Go to the cart or select more products.
Remove unnecessary items in the cart or clear the entire cart.
When all the desired items are in the cart, click Buy.
The bot will send you a payment link.

Setup

Create Tables in Postgres DB
- Modify the SQL script to replace "n8n" with your schema name.
- Run the provided SQL script in your database (available in the workflow).
Add Credentials
- Add WhatsApp credentials (OAuth, Account).
- Add Postgres credentials to connect the bot to your database.

How to customize this workflow to your needs

Update the database schema or table structure if you need additional product information.
Modify the bot interaction to suit your specific product listing and display preferences.

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 - WhatsApp Trigger

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

Block 2 - Sticky Note3

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

Block 3 - Starts

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

Block 4 - Upsert Bot Status

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.5

Block 5 - Get Bot Status

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.5

Block 6 - Start?

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

Block 7 - Commands

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

Block 8 - Main Menu

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

Block 9 - Initialization

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

Block 10 - Union list

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

Block 11 - Union Number with Question

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

Block 12 - Get Card products

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.5

Block 13 - List Cards

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

Block 14 - Get Card product

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.5

Block 15 - Get Card products

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 2.5

Block 16 - List?

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

Block 17 - Card

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

Block 18 - Sticky Note7

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

Block 19 - Sticky Note8

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

Block 20 - Sticky Note9

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

Block 21 - Sticky Note6

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

Block 22 - Sticky Note10

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

3. Summary Table

Workflow	WhatsApp product catalog bot with PostgreSQL database
Complexity	advanced
Nodes	22
Categories	Lead Nurturing
Author	Andrew
Published	21 Apr 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/3652/3652.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 Lead Nurturing workflows

Frequently asked questions

What does WhatsApp product catalog bot with PostgreSQL database 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 Lead Nurturing use case.

Andrew

18 workflows

Nodes

n8n-nodes-base.whatsapptrigger n8n-nodes-base.stickynote n8n-nodes-base.whatsapp n8n-nodes-base.postgres n8n-nodes-base.if n8n-nodes-base.switch n8n-nodes-base.set n8n-nodes-base.summarize

Complexity

advanced

Published 21 Apr 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/3652/3652.json

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WhatsApp product catalog bot with PostgreSQL database

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

How to customize this workflow to your needs

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - WhatsApp Trigger

Block 2 - Sticky Note3

Block 3 - Starts

Block 4 - Upsert Bot Status

Block 5 - Get Bot Status

Block 6 - Start?

Block 7 - Commands

Block 8 - Main Menu

Block 9 - Initialization

Block 10 - Union list

Block 11 - Union Number with Question

Block 12 - Get Card products

Block 13 - List Cards

Block 14 - Get Card product

Block 15 - Get Card products

Block 16 - List?

Block 17 - Card

Block 18 - Sticky Note7

Block 19 - Sticky Note8

Block 20 - Sticky Note9

Block 21 - Sticky Note6

Block 22 - Sticky Note10

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