Cancel calendar events by messaging Telegram
When a meeting is cancelled, just tell Notis in Telegram and the event disappears from your calendar instantly—no app-switching, no manual deletion.
Trigger
New Message Received
Triggered when your bot receives a new message in a private chat, group, or supergroup. To receive every message in a group, Privacy Mode must be disabled for the bot in BotFather.
Action
Delete event
Deletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Why this helps
Cancellations come through Telegram but people forget to delete calendar events, leading to clutter and confusion. Or neurodivergent founders open the calendar to delete the event and get derailed by other stuff on the screen.
- Keep your calendar clean by deleting cancelled events without opening the app
- Reduce clutter that adds cognitive load
- Instant confirmation that the event is gone
Setup
Build it in a few focused steps.
- 1Connect Telegram and Google Calendar.
- 2Tell Notis: 'When I mention a meeting is cancelled in Telegram, delete it from my calendar.'
- 3Select 'New Message Received' as the trigger.
- 4Test by saying 'cancel my 3pm standup' in Telegram and verifying the event is deleted.
Questions about this workflow
How does Notis know which event you're referring to?
Notis uses context—if you mention a time or title, it finds the matching event. Be specific with 'the 3pm call with sales' rather than just 'the meeting.'
Can I undo a deletion?
Google Calendar keeps a trash/recently deleted folder for a short time. Notis can restore if needed, but confirm before deleting important events.
Can this delete recurring events?
You can tell Notis to delete just this instance or the entire series. Specify in your message: 'cancel tomorrow's standup' vs. 'cancel all future standups.'
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Telegram to Google Calendar. A trigger fires from one place; an action lands in another.
Telegram triggers
Google Calendar actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Insert Calendar into List
Inserts an existing calendar into the user's calendar list.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Update Calendar List Entry
Updates an existing entry on the user\'s calendar list.
New Message Received
Triggered when your bot receives a new message in a private chat, group, or supergroup. To receive every message in a group, Privacy Mode must be disabled for the bot in BotFather.
Delete Calendar
Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
New Channel Post
Triggered when a new post is published to a channel where your bot is an administrator.
Update Calendar
Updates metadata for a calendar.
Callback Query Received
Triggered when a user taps an inline keyboard button attached to one of your bot's messages.
Clear Calendar
Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.
Message Edited
Triggered when a message in a chat your bot can see is edited by its sender.
Create Event
Creates an event on a google calendar, needing rfc3339 utc start/end times (end after start) and write access to the calendar. by default, adds the organizer as an attendee unless exclude organizer is set to true.
New Chat Member
Triggered when a new member joins a group or supergroup the bot belongs to, including when the bot itself is added.
Delete event
Deletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Create a calendar
Creates a new, empty google calendar with the specified title (summary).
Connect any two apps with Notis in the middle.
Telegram and Google Calendar, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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