Offer and confirm technician visit slots with Google Calendar, Gmail, Sheets, and Telegram

by Dmytro ✓ · 15 views · created 2026-08-12 · Support Chatbot

What this workflow does

This workflow has 32 nodes and runs when an HTTP POST request hits its webhook URL (plus 2 other triggers). Along the way it connects Google Calendar, Gmail, Google Sheets and Telegram.

How it runs

Trigger: When an HTTP POST request hits its webhook URL (plus 2 other triggers).

1. Confirm Booking Request Receipt (Respond to Webhook): sends the response back to the webhook caller
2. Parse Slot Selection (Code): runs custom JavaScript code
3. Fetch All Bookings From Sheet (Google Sheets): uses Google Sheets
4. Build Booking Request (Code): runs custom JavaScript code
5. Retrieve Booking Info (Google Sheets): uses Google Sheets
6. Determine Daily Actions (Code): runs custom JavaScript code
7. Fetch Calendar Busy Times (Google Calendar): get many
8. Verify Slot Availability (If): checks a condition and branches into true / false
9. Assess Reminder or Expiry (If): checks a condition and branches into true / false
10. Find Available Slots (Code): runs custom JavaScript code

…plus 19 more steps. See the full node list below.

Services it uses

Google CalendarGmailGoogle SheetsTelegram

Before you upgrade to n8n 3.0

Nodes used (9)

• Webhookn8n-nodes-base.webhook
• Respond to Webhookn8n-nodes-base.respondToWebhook
• Coden8n-nodes-base.code
• Google Calendarn8n-nodes-base.googleCalendar
• Ifn8n-nodes-base.if
• Gmailn8n-nodes-base.gmail
• Google Sheetsn8n-nodes-base.googleSheets
• Telegramn8n-nodes-base.telegram
• Schedule Triggern8n-nodes-base.scheduleTrigger

From the author

Quick overview This workflow takes a booking request via webhook, checks a technician’s Google Calendar for availability, emails three one-click time options via Gmail, and books the chosen slot into Google Calendar while logging and tracking the process in…

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