AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram

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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 automatically extracts data from invoice documents (PDFs and images) and processes them through a comprehensive validation and approval system. Key Steps 1. Multi Input T...

Best for

Invoice Processing automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.emailreadimap, n8n-nodes-base.webhook, n8n-nodes-base.code, n8n-nodes-scrapegraphai.scrapegraphai, n8n-nodes-base.switch, n8n-nodes-base.telegram, n8n-nodes-base.httprequest, 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 vinci-king-01.

Original n8n.io source

1.1 Workflow description

Title: AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram
Workflow name: AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram

How it works

This workflow automatically extracts data from invoice documents (PDFs and images) and processes them through a comprehensive validation and approval system.

Key Steps

Multi-Input Triggers - Accepts invoices via email attachments or direct file uploads through webhook.
AI-Powered Extraction - Uses ScrapeGraphAI to extract structured data from invoice documents.
Data Cleaning & Validation - Processes and validates extracted data against business rules.
Approval Workflow - Routes invoices requiring approval through a multi-stage approval process.
System Integration - Automatically sends validated invoices to your accounting system.

Set up steps

Setup time: 10-15 minutes

Configure ScrapeGraphAI credentials - Add your ScrapeGraphAI API key for invoice data extraction.
Set up Telegram connection - Connect your Telegram account for approval notifications.
Configure email trigger - Set up IMAP connection for processing emailed invoices.
Customize validation rules - Adjust business rules, amount thresholds, and vendor lists.
Set up accounting system integration - Configure the HTTP request node with your accounting system's API endpoint.
Test the workflow - Upload a sample invoice to verify the extraction and approval process.

Features

Multi-format support: PDF, PNG, JPG, JPEG, TIFF, BMP
Intelligent validation: Business rules, duplicate detection, amount thresholds
Approval automation: Multi-stage approval workflow with role-based routing
Data quality scoring: Confidence levels and completeness analysis
Audit trail: Complete processing history and metadata tracking

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 - Email Trigger

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

Block 2 - File Upload Webhook

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

Block 3 - File Processor

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

Block 4 - ScrapeGraphAI - Invoice Extractor

Type / Role: n8n-nodes-scrapegraphai.scrapegraphAi - scrapegraphAi
Config choices: Version 1

Block 5 - Data Extractor & Cleaner

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

Block 6 - Validation Rules Engine

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

Block 7 - Approval Required?

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3

Block 8 - Approval Workflow Generator

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

Block 9 - Approval Notification

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 10 - Accounting System Integration

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 11 - Sticky Note - Triggers

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

Block 12 - Sticky Note - File Processor

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

Block 13 - Sticky Note - AI Extraction

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

Block 14 - Sticky Note - Data Cleaning

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

Block 15 - Sticky Note - Validation

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

Block 16 - Sticky Note - Approval Routing

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

Block 17 - Sticky Note - Approval Workflow

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

Block 18 - Sticky Note - System Integration

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

3. Summary Table

Workflow	AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram
Complexity	advanced
Nodes	18
Categories	Invoice Processing, AI Summarization
Author	vinci-king-01
Published	29 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6628/6628.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 Invoice Processing workflows AI Summarization workflows

Frequently asked questions

What does AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram 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 Invoice Processing, AI Summarization use case.

vinci-king-01

67 workflows

Nodes

n8n-nodes-base.emailreadimap n8n-nodes-base.webhook n8n-nodes-base.code n8n-nodes-scrapegraphai.scrapegraphai n8n-nodes-base.switch n8n-nodes-base.telegram n8n-nodes-base.httprequest n8n-nodes-base.stickynote

Complexity

advanced

Published 29 Jul 2025

Likes 0

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Install path: /data/workflows/6628/6628.json

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AI-powered invoice data extraction & approval workflow with ScrapeGraphAI & Telegram

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Key Steps

Set up steps

Features

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Email Trigger

Block 2 - File Upload Webhook

Block 3 - File Processor

Block 4 - ScrapeGraphAI - Invoice Extractor

Block 5 - Data Extractor & Cleaner

Block 6 - Validation Rules Engine

Block 7 - Approval Required?

Block 8 - Approval Workflow Generator

Block 9 - Approval Notification

Block 10 - Accounting System Integration

Block 11 - Sticky Note - Triggers

Block 12 - Sticky Note - File Processor

Block 13 - Sticky Note - AI Extraction

Block 14 - Sticky Note - Data Cleaning

Block 15 - Sticky Note - Validation

Block 16 - Sticky Note - Approval Routing

Block 17 - Sticky Note - Approval Workflow

Block 18 - Sticky Note - System Integration

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