n8n WhatsApp & Telegram Lead Qualifier with Claude + Google Sheets

Qualify WhatsApp & Telegram leads automatically with Claude—powered by your Google Sheets

Stop manually sorting incoming messages. This n8n workflow receives WhatsApp and Telegram chats, enriches them with your Google Sheets lead history and Google Docs knowledge base, then uses Claude to qualify the lead and reply in their detected language—while logging results and alerting you on hot leads.

What this workflow does

• Receives messages via webhooks from Telegram and WhatsApp (including a separate WhatsApp verification webhook response).
• Normalizes incoming messages into a consistent format, and ignores non-text events by immediately returning an OK response.
• Loads context from your data sources: pulls the latest knowledge base content from Google Docs and retrieves any existing lead record + conversation history from Google Sheets using the lead’s chat ID.
• Builds a structured Claude prompt with disclosure rules, a qualification flow, product placeholders, and the prior conversation context.
• Calls the Anthropic Messages API (Claude) and parses the response to extract lead status and fields (e.g., name, contact, product, source, call time), while removing control tags from the user-facing reply.
• Updates Google Sheets by appending or updating the lead row with the latest status and conversation history.
• Notifies the owner on hot/warm/manager-requested leads via Telegram when contact details are present, then sends Claude’s cleaned reply back to the user on Telegram or WhatsApp.

Use cases

• Qualify inbound sales chats from WhatsApp and Telegram without adding manual steps to your pipeline.
• Use chat ID-based continuity to maintain conversation history and update lead status in Google Sheets.
• Instantly flag high-intent (“hot”) leads to you or your team for follow-up.

Technical details

• Integrations: Telegram, WhatsApp webhooks, Claude (Anthropic Messages API), Google Docs, Google Sheets.
• Core n8n node concepts: webhook, telegram, google docs, plus if / code for message handling and parsing.
• Supports language auto-detection: Claude detects the customer’s language and replies in it (not a fixed list).