AI-Powered WhatsApp Chatbot: Automate Support & Payments

Transform your WhatsApp into an intelligent customer support powerhouse with this advanced AI-powered automation that handles text, voice, images, and payment verification—all while maintaining conversation memory and automatically logging transactions to spreadsheets.

What This Workflow Does

This comprehensive n8n workflow leverages Google Gemini AI and Meta WhatsApp Cloud API to create a sophisticated customer support bot that goes far beyond simple text responses. The system uses Google Docs as a knowledge base to answer customer FAQs with natural conversational memory spanning 12-hour sessions. When customers send voice messages, the bot automatically transcribes audio and responds intelligently.

The standout feature is Gemini Vision integration for receipt processing—the bot analyzes payment screenshots from Pago Móvil, bank transfers, and digital wallets like Zinli and Binance, extracting reference numbers, amounts, and beneficiary details. It automatically converts Venezuelan Bolivars to USD using live exchange rates from dolarapi.com and logs all transactions in dynamically created Google Sheets with formatted daily worksheets and automatic sum formulas.

Key Use Cases

• E-commerce businesses processing international payments and receipts
• Service providers needing automated payment verification and tracking
• Companies handling multilingual customer support with voice message capabilities
• Financial service businesses requiring automated ledger management
• Organizations needing secure verification code recovery for authorized users

Technical Implementation

Built using essential n8n nodes including If conditions for logic branching, Code nodes for custom processing, Switch nodes for routing messages, and Date Time nodes for session management. The workflow integrates WhatsApp Cloud API for messaging, Google Docs for knowledge management, Google Sheets for transaction logging, and Gmail for verification code retrieval.

Installation is streamlined with one-command Docker and Node.js setup, making deployment accessible for automation engineers and SaaS operators. This workflow is perfect for businesses seeking to automate customer support while maintaining the sophistication needed for payment processing and financial record-keeping.