Sharing a reference setup to configure and validate for a dealership.
**The problem:** leads arrive 24/7 (website, Meta ads, marketplaces, phone), sales team works 9–6. Every hour of delay = dead lead.
**The n8n setup:**
1. One webhook endpoint for all lead sources
2. Set node normalizes → Code node scores hot/warm/cold (named a vehicle? paid source?)
3. HTTP node → Wati `sendTemplateMessage` (official WhatsApp API) — instant reply, different template when the buyer names a vehicle
4. Google Sheets append (the team lives in the sheet)
5. Wait node 24h → check replies via API → IF no reply → one follow-up. Then day 3, day 7, hard stop.
**Metrics to collect:** median response time, reply rate by source, handoff rate and opt-out rate.
**Lessons:** approved template messages only (session window is a trap for this use case); bot introduces itself as automated; hard stop at day 7 protects the number's quality rating.
Both base workflows are free (JSON with sticky-note docs): https://github.com/marcelobm33/stackpick-n8n-templates
If you're stuck on Meta template copy/approvals before wiring n8n, I also published an 8-template kit + checklist ($19, no n8n): https://trystackpick.com/r/meta-template-kit?cta=community-n8n
Questions on the Wati/respond.io side welcome — that's the part with the sharp edges.