Automate Lead Calling with VAPI, Google Sheets Logging, and Calendar Bookings

Auto-Call Leads from Google Sheets with VAPI → Log Results + Book Calendar

This workflow calls new leads from a Google Sheet using VAPI, saves the call results, and (if there’s a booking request) creates a Google Calendar event automatically.

Benefits Auto-call each new lead from your call list Save full call outcomes back to Google Sheets Parse “today/tomorrow + time” into a real datetime (IST) Auto-create calendar events for bookings/deliveries Batch-friendly to avoid rate limits

How It Works Trigger: New row in Google Sheets (calllist). Prepare: Normalize phone (adds +), then process in batches. Call: Send number to VAPI (/call) with your assistantId + phoneNumberId. Receive: VAPI posts results to your Webhook. Store: Append/Update Google Sheet with: name, role, company, phone, email, interest level, objections, next step, notes, etc. Parse Time: Convert today/tomorrow + HH:MM AM/PM to start/end in IST (+1 hour). Book: Create Google Calendar event with the parsed times. Respond: Send response back to VAPI to complete the cycle.

Who Is This For Real estate / local service teams running outbound calls Agencies doing voice outreach and appointment setting Ops teams that want call logs + auto-booking in one place

Setup Google Sheets Trigger: select your spreadsheet Vapireal-estate and tab calllist. VAPI Call: set assistantId, phoneNumberId, and add Bearer token. Webhook: copy the n8n webhook URL into VAPI so results post back. Google Calendar: set the calendar ID (e.g., you@domain.com). Timezone: the booking parser formats times to Asia/Kolkata (IST). Batching: adjust SplitInBatches size to control pace.

ROI & Monetization Save 2–4 hours/week on manual dialing + data entry Faster follow-ups with instant booking creation Package as an “AI Caller + Auto-Booking” service ($1k–$3k/month)

Strategy Insights In the full walkthrough, I show how to: Map VAPI tool call JSON safely into Sheets fields Handle missing/invalid times and default to safe slots Add no-answer / retry logic and opt-out handling Extend to send Slack/email alerts for hot leads