Convert unstructured contact data to JSON with GPT-4 for system integration

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Important notice

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

1. Workflow Overview

This workflow contains community nodes that are only compatible with the self hosted version of n8n. This n8n workflow template helps you automatically convert unstructured contact information—such...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.respondtowebhook, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.stickynote

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Convert unstructured contact data to JSON with GPT-4 for system integration
Workflow name: Convert unstructured contact data to JSON with GPT-4 for system integration

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

This n8n workflow template helps you automatically convert unstructured contact information—such as customer details copied from emails, web forms, or chat messages—into clean, structured JSON using an AI agent.

What It Does:

Accepts unstructured contact data via a Webhook (as form-data under the key prompt)
Uses AI to intelligently extract key fields such as:
- Company Name
- First Name
- Last Name
- Address
- City
- Country
- Phone
- Fax
- Email
Parses and formats the extracted data into a valid JSON object
Prepares the output for seamless integration into systems like:
- Dolibarr
- Other ERP/CRM platforms
- Any service that consumes JSON via API or webhook

Use Cases:

Automate manual data entry from emails into your ERP system
Clean and normalize contact data from various input sources
Reduce human error in your customer onboarding workflows

This template saves you time and ensures consistency across your business systems.
Simply connect your systems and let the automation handle the rest.

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 - Webhook

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2

Block 2 - Respond to Webhook

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

Block 3 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.1

Block 4 - Code

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 5 - OpenAI Chat Model

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

Block 6 - Sticky Note

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

Block 7 - Sticky Note1

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

Block 8 - Sticky Note2

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

Block 9 - Sticky Note3

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

3. Summary Table

Workflow	Convert unstructured contact data to JSON with GPT-4 for system integration
Complexity	intermediate
Nodes	9
Categories	Document Extraction, AI Summarization
Author	Frankie Wong
Published	01 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6779/6779.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 Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does Convert unstructured contact data to JSON with GPT-4 for system 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 Document Extraction, AI Summarization use case.

Frankie Wong

1 workflow

Nodes

n8n-nodes-base.webhook n8n-nodes-base.respondtowebhook @n8n/n8n-nodes-langchain.agent n8n-nodes-base.code @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.stickynote

Complexity

intermediate

Published 01 Aug 2025

Likes 0

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Install path: /data/workflows/6779/6779.json

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Convert unstructured contact data to JSON with GPT-4 for system integration

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What It Does:

Use Cases:

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Webhook

Block 2 - Respond to Webhook

Block 3 - AI Agent

Block 4 - Code

Block 5 - OpenAI Chat Model

Block 6 - Sticky Note

Block 7 - Sticky Note1

Block 8 - Sticky Note2

Block 9 - Sticky Note3

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