Connect Calendar Events to Your Entire Business System
Your billing system, analytics platform, or custom app needs to notify you about a calendar event. Set a webhook trigger so Telegram gets the notification instantly, and you see it alongside all your other alerts.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Send Message
Send a text message to a telegram chat using the bot api.
Why this helps
Alerts from different systems land in different places. Your calendar notifications are on Google Calendar, your billing alerts are in email, and your app notifications are in Slack. You miss context and have to manually connect the dots.
- Consolidate alerts from multiple systems into one Telegram stream
- See the full picture of calendar-related events in your business
- React faster when external systems flag important calendar events
- Reduce context-switching between multiple notification channels
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Telegram to Notis.
- 2Create an automation: "When an external system sends a webhook with event data, post a Telegram message."
- 3Select the trigger: "Notis Webhook" and copy the webhook URL.
- 4Configure your external systems to POST to that URL with calendar event data.
- 5Test by triggering a sample event from your external system.
Questions about this workflow
What if I have multiple webhooks from different systems?
Each webhook gets its own automation, or you can route them all to the same automation and Notis combines them in Telegram.
Can I add custom metadata to the webhook payload?
Yes. Include whatever data your system generates, and Notis includes it in the Telegram message.
How do I debug if the webhook isn't firing?
Notis logs webhook receipts so you can see what data arrived. Check the automation logs in the portal.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to Telegram. A trigger fires from one place; an action lands in another.
Google Calendar triggers
Telegram actions
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Answer Callback Query
Use this method to send answers to callback queries sent from inline keyboards. the answer will be displayed to the user as a notification at the top of the chat screen or as an alert.
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
Delete Message
Delete a message, including service messages, with certain limitations.
Event Starting Soon
Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
Edit Message
Edit text messages sent by the bot.
Calendar Event Changes
**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).
Export Chat Invite Link
Generate a new primary invite link for a chat; any previously generated primary link is revoked. the bot must be an administrator in the chat for this to work and must have the appropriate administrator rights.
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Forward Message
Forward messages of any kind. service messages can't be forwarded.
Calendar Event Sync
Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Get Chat Info
Get up to date information about the chat (current name of the user for one-on-one conversations, current username of a user, group or channel, etc.).
Event Updated
Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Get Chat Administrators
Get a list of administrators in a chat. on success, returns an array of chatmember objects that contains information about all chat administrators except other bots.
Get Chat History
Get chat history messages. note: this uses the getupdates method with specific parameters to retrieve historical messages.
Connect any two apps with Notis in the middle.
Not just Google Calendar and Telegram. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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