Stop Missing Leads: Automate WhatsApp Sales

DeepSeek-Powered Customer Service with a Google Sheets Catalog (n8n)

⚠️ Self-Hosted n8n Only · Works with Evolution API webhooks · No WhatsApp Business API required

Turn WhatsApp into a Smart Sales Assistant

Give customers instant answers in Saudi dialect, pull live product data from your Google Sheets catalog, collect order details, and ping your team only when a buyer is ready—all on autopilot.

Perfect for: e-commerce, restaurants, retail, and service brands that sell via WhatsApp.

What you’ll get (download)

• n8n workflow (.json) – plug-and-play
• Quick-start guide (PDF/MD) – step-by-step setup
• DeepSeek system prompt (TXT) – ready to customize
• Google Sheets schema (XLSX) – sample columns & data structure
• Message templates (TXT) – greeting + purchase handoff email
• Lifetime updates

Need a white-glove setup? You will receive an email from the author after purchasing to help you installing the workflow.

Key benefits

• Instant replies in a friendly Saudi tone (“هلا وغلا”)
• Always on-brand: answers sourced from your Google Sheet only
• Fewer manual chats: bot collects name, phone, delivery/pickup date
• Sales-ready alerts: Gmail email fires only when a customer wants to buy
• Context that sticks: optional Postgres memory for multi-turn chats

How it works (flow)

1. Webhook Listener (Evolution API → MESSAGES_UPSERT)
2. Filters out outbound (fromMe) + group (@g.us) messages
3. Catalog Lookup from Google Sheets
4. AI Reply via DeepSeek (Saudi dialect, catalog-only answers)
5. Purchase Flow: asks for name, phone (format 05XXXXXXXX), date
6. Sales Handoff: sends Gmail email when customer confirms purchase
7. (Optional) Postgres chat memory for smoother follow-ups

Requirements

• n8n (self-hosted) with public URL
• Evolution API (webhook enabled; only MESSAGES_UPSERT required)
• Google Sheets API credentials
• DeepSeek API key
• Gmail OAuth2 (for notifications)
• Postgres (optional, for memory)

Install in minutes

1. Evolution API → Events → Webhook
   • Enable Webhook
   • URL: https://<your-n8n-domain>/webhook/whatsAppListen
   • Enable only MESSAGES_UPSERT
2. Community Nodes (if needed)
   • n8n-nodes-evolution-api (if you want to send replies via node instead of webhook→HTTP Request)
3. Google Sheets
   • Create “Your Company Items” sheet with columns, e.g.:
     • product_id, name, description, components, price, availability
   • Connect Google Sheets credentials in n8n
4. DeepSeek
   • Add API key to DeepSeek Chat Model node
   • Use the included system prompt and adjust your brand tone
5. Gmail
   • Add OAuth2 credentials; set recipient (your sales inbox)

Customize quickly

• Prompt tone: edit “welcome” & dialect phrasing
• Sheet columns: add fields like SKU, images, variants, pickup branches
• Email template: change subject/body, add CRM links
• Validation: enforce 05XXXXXXXX phone format in the flow

FAQ

Is this a WhatsApp Business API integration?
No. It uses Evolution API to receive/send WhatsApp messages.

Can the bot answer outside my catalog?
No—by design it answers only from your Google Sheet.

Can I connect a CRM?
Yes. Add CRM nodes to log leads/orders alongside the email handoff.

Multi-language?
The shipped prompt targets Saudi Arabic; you can add languages.

License & support

• License: Single brand/domain, commercial use allowed. No re-selling or re-distribution of the template files.
• Support: Email/Q&A for installation questions; paid upgrade available for hands-on setup.

Changelog

v1.0.0 – Initial release: webhook listener, DeepSeek replies, Sheets catalog, purchase handoff, optional memory.

Ready to turn chats into orders?

Start automating your WhatsApp sales today — download instantly and be live in 15 minutes