Keep your calendar events updated with meeting outcomes

After a meeting, someone posts a recap in Slack. React with a notepad emoji and Notis updates the calendar event with the summary. Now your calendar is your source of truth, not Slack.

Trigger

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

Google Calendar logo

Action

Patch Event

Updates specified fields of an existing event in a google calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar id` and `event id` are valid and the user has write access to the calendar.

Why this helps

Meeting recaps live in Slack but your calendar event has only the title. Weeks later, you need to remember what was decided and have to dig through Slack instead of checking your calendar.

  • Keep all meeting context in your calendar instead of scattered across Slack and Google
  • Reduce time searching for meeting decisions by making Calendar the single source of truth
  • Update calendar notes in one reaction instead of switching apps

Setup

Build it in a few focused steps.

  • 1Connect Slack and Google Calendar to Notis
  • 2Tell Notis: 'When I react to a meeting recap with a notepad emoji, add those notes to the corresponding calendar event'
  • 3Notis will match the Slack recap to your calendar by time and attendees
  • 4Test by reacting to a real meeting recap message

Questions about this workflow

How does Notis know which calendar event to update?

It matches the Slack message timestamp and mentions (or attendees) to your calendar. If there's ambiguity, it can ask you to confirm.

What if the calendar event isn't in Google Calendar?

You can ask Notis to create a new event if one doesn't exist, or just keep the notes in Slack if you prefer.

Can I add action items separately from the recap?

Absolutely. Use different emoji for different purposes—notepad for recap, checkbox for action items, etc.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Google Calendar. A trigger fires from one place; an action lands in another.

Slack logo

Slack triggers

Google Calendar logo

Google Calendar actions

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Insert Calendar into List

Inserts an existing calendar into the user's calendar list.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Update Calendar List Entry

Updates an existing entry on the user\'s calendar list.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Delete Calendar

Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Update Calendar

Updates metadata for a calendar.

ActionInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Clear Calendar

Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.

ActionInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

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.

ActionInstant

Reaction Removed Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.

TriggerInstant

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.

ActionInstant

New Bot Message Received Trigger

DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel.

TriggerInstant

Create a calendar

Creates a new, empty google calendar with the specified title (summary).

ActionInstant

Connect any two apps with Notis in the middle.

Not just Slack and Google Calendar. Any combination from 985+ integrations.

When this happens · Trigger

Do this · Action

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