Gmail email categorization & auto reply with GPT-4o and Google Sheets

🧭 Description

This section automates Gmail message handling through AI-powered classification and response. Using the LangChain Text Classifier, incoming emails are analyzed and sorted into four categories — High Priority, Advertisement, Inquiry, and Finance/Billing — each triggering a dedicated action flow.

High Priority: AI generates a professional draft reply and saves it to Gmail.

Advertisement: AI summarizes content and logs it to Google Sheets.

Inquiry: AI composes a customer-friendly response automatically.

Finance/Billing: AI creates a brief summary and forwards it to the accounting email.

This system reduces manual sorting, ensures consistent communication quality, and speeds up email management with full automation.

💡 Use Cases