Update calendar event details from Telegram
Tell Notis 'add a video link to the 3pm call' in Telegram and the calendar event updates instantly. No app-switching needed.
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
Patch Calendar
Partially updates (patches) an existing google calendar, modifying only the fields provided; `summary` is mandatory and cannot be an empty string, and an empty string for `description` or `location` clears them.
Why this helps
Details change constantly—a meeting room, video link, or agenda gets clarified. Neurodivergent founders often don't update the calendar because switching apps feels like friction they can avoid. Then attendees show up to the wrong place.
- Update event details without opening your calendar app
- Keep attendees informed by updating the event source rather than sending new messages
- Reduce friction that prevents event details from staying current
Setup
Build it in a few focused steps.
- 1Connect Telegram and Google Calendar.
- 2Tell Notis: 'When I send you instructions to update a calendar event, patch it with the new details.'
- 3Select 'New Message Received' as the trigger.
- 4Test by saying 'update the 2pm call: add zoom link https://zoom.us/...' and verifying the event is updated.
Questions about this workflow
Which fields can Notis update?
Title, description, location, start/end time, and video link. Tell Notis what to change and it updates those fields.
Can Notis add attachments or files?
Yes, if you include a link to a file. Notis will add it to the event description.
Can I update multiple events at once?
If you're specific about which events (e.g., 'all standups this month'), Notis can update them in batch.
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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