AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI

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Important notice

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

1. Workflow Overview

How It Works This workflow automates personalized customer journeys by analyzing CRM data, purchase history, chat interactions, and performance metrics to intelligently route customer actions throu...

Best for

Social Media automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.scheduletrigger, n8n-nodes-base.set, n8n-nodes-base.httprequest, n8n-nodes-base.merge, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.outputparserstructured

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI
Workflow name: AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI

How It Works

This workflow automates personalized customer journeys by analyzing CRM data, purchase history, chat interactions, and performance metrics to intelligently route customer actions through multiple channels (email, SMS, retargeting) via AI-optimized schemas. A webhook trigger initiates the process by fetching CRM customer data, which is then merged with historical records and interactions. OpenAI builds comprehensive customer state profiles, enabling intelligent routing to appropriate channels using optimized journey logic. The system aggregates performance metrics in real-time and updates the database to maintain synchronized customer information across all systems.

Setup Steps

Connect CRM credentials (source system)
Add OpenAI API key for state builder
Configure Gmail/SMS provider credentials
Add Google Sheets connection for performance tracking
Set Touchpoint Event Webhook URL
Map database connection for customer state persistence

Prerequisites

OpenAI API key, CRM access, Gmail/SMS provider accounts, Google Sheets, database (PostgreSQL/MySQL), n8n instance with webhook enabled.

Use Cases

E-commerce personalization, SaaS customer retention, multi-touch marketing automation

Customization

Modify journey schemas in Journey Optimizer AI, adjust routing rules in Action Type Router

Benefits

Reduces manual campaign management 80%, improves conversion via AI personalization

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 - Touchpoint Event Webhook

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

Block 2 - Journey Optimization Schedule

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

Block 3 - Workflow Configuration

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

Block 4 - Fetch CRM Data

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 5 - Fetch Email History

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 6 - Fetch Chat History

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 7 - Fetch Purchase History

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 8 - Merge Customer Data

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

Block 9 - Customer State Builder AI

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3

Block 10 - OpenAI Model - State Builder

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

Block 11 - Customer State Schema

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

Block 12 - Journey Stage Router

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

Block 13 - Journey Optimizer AI

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3

Block 14 - OpenAI Model - Optimizer

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

Block 15 - Journey Action Schema

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

Block 16 - Action Type Router

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

Block 17 - Send Email Campaign

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

Block 18 - Send SMS Campaign

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

Block 19 - Create Retargeting Campaign

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

Block 20 - Log Performance Metrics

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 21 - Fetch Performance Data

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 22 - Aggregate Journey Results

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

Block 23 - Update Customer State

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

Block 24 - Save Customer State to Database

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Showing the first 24 of 36 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI
Complexity	advanced
Nodes	36
Categories	Social Media, AI Summarization
Author	Cheng Siong Chin
Published	11 Dec 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11711/11711.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 Social Media workflows AI Summarization workflows

Frequently asked questions

What does AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI 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 Social Media, AI Summarization use case.

Cheng Siong Chin

203 workflows

Nodes

n8n-nodes-base.webhook n8n-nodes-base.scheduletrigger n8n-nodes-base.set n8n-nodes-base.httprequest n8n-nodes-base.merge @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.outputparserstructured

Complexity

advanced

Published 11 Dec 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/11711/11711.json

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AI-powered multi-channel customer journey with email, SMS & retargeting using OpenAI

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How It Works

Setup Steps

Prerequisites

Use Cases

Customization

Benefits

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Touchpoint Event Webhook

Block 2 - Journey Optimization Schedule

Block 3 - Workflow Configuration

Block 4 - Fetch CRM Data

Block 5 - Fetch Email History

Block 6 - Fetch Chat History

Block 7 - Fetch Purchase History

Block 8 - Merge Customer Data

Block 9 - Customer State Builder AI

Block 10 - OpenAI Model - State Builder

Block 11 - Customer State Schema

Block 12 - Journey Stage Router

Block 13 - Journey Optimizer AI

Block 14 - OpenAI Model - Optimizer

Block 15 - Journey Action Schema

Block 16 - Action Type Router

Block 17 - Send Email Campaign

Block 18 - Send SMS Campaign

Block 19 - Create Retargeting Campaign

Block 20 - Log Performance Metrics

Block 21 - Fetch Performance Data

Block 22 - Aggregate Journey Results

Block 23 - Update Customer State

Block 24 - Save Customer State to Database

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