Stay in Sync When Meeting Attendees Change
A meeting organizer adds someone to your 3 PM meeting. A Telegram alert tells you immediately so you can prep for their input instead of being surprised when they join the call.
Trigger
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.
Action
Send Message
Send a text message to a telegram chat using the bot api.
Why this helps
Attendees get added or removed from meetings without you noticing. You show up expecting a one-on-one but it's now five people, or you're prepared for a discussion with the team and they're all gone. Context mismatch ruins the meeting.
- Know immediately when meeting composition changes
- Adjust your prep based on who's actually attending
- Avoid awkward surprises about who's in the meeting
- Stay in the loop when organizers make last-minute changes
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Telegram to Notis.
- 2Create an automation: "Alert me on Telegram when attendees are added to or removed from any of my meetings."
- 3Select the trigger: "Event Updated" from Google Calendar (filtered to attendee changes only).
- 4Choose Telegram as your notification channel.
- 5Test by adding someone to an existing meeting and watching for the alert.
Questions about this workflow
Does this include people who RSVP'd but then cancel?
RSVPs are handled separately. This alert is for changes the organizer makes to the attendee list.
Will I get bombarded with alerts if the organizer is adding people one by one?
Notis can batch updates if you prefer, or send one alert per change. You control the frequency.
Can I see who was added or removed?
Yes. The alert shows the specific names and their status (added, removed, or updated).
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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