Learn how to build a powerful AI Invoice Processing automation from scratch using n8n and Claude! This comprehensive tutorial will show you how to automatically extract data from any invoice format and organize it in Google Sheets.

🔧 Tools Used:
* n8n (workflow Automation Platform) :
* OpenAI GPT-4o for Image OCR Processing
* Claude via OpenRouter as LLM :
* Google Drive API (File Monitoring)
* Google Sheets API (Data Storage)
* PDF Text Extraction
* Image OCR Processing

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⏱️ What You’ll Learn :
✅ Setting up n8n workflow automation for invoice processing
✅ Integrating OpenAI GPT-4o for image analysis
✅ Building smart file routing (PDF vs Image processing)
✅ Automatic data extraction with 95% accuracy
✅ Google Sheets integration for organized data storage
✅ Error handling and quality control systems

🎯 Perfect for:
Small business owners tired of manual data entry
Freelancers and entrepreneurs managing invoices
Developers wanting to build practical AI automation
Anyone processing 10+ invoices weekly

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