Never Lose Track of When and How Meetings Changed
Every time you reschedule, rescope, or add/remove attendees from a meeting, Notis logs the change to your audit sheet. You'll always know what shifted and when.
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
Append Values to Spreadsheet
Tool to append values to a spreadsheet. use when you need to add new data to the end of an existing table in a google sheet.
Why this helps
Meetings change constantly, and tracking those changes manually is painful. You might miss a time shift, not remember why an attendee was removed, or get confused about the current state.
- Complete audit trail of every event change for compliance and clarity
- Spot patterns in rescheduling (e.g., meetings always slipping later)
- Quickly review what changed if there's confusion about timing or scope
- Historical record helps you communicate changes clearly
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Google Sheets to Notis
- 2Tell Notis: 'Whenever I update a calendar event, log the change to my audit sheet including: event name, what changed (time, attendees, location, description), old value, new value, and timestamp'
- 3Create an audit log sheet or let Notis set one up
- 4Choose your notification channel
- 5Test by updating an existing calendar event (change time, add an attendee, or modify description)
Questions about this workflow
Will this capture changes made by other people on shared calendars?
Yes. Notis can track changes made by anyone with edit access if you want a full audit, or you can filter to only your direct changes.
Does it log every tiny edit or only major changes?
By default, Notis logs all changes. You can ask it to filter for 'major changes only' (time, attendees, location) and ignore minor ones like description tweaks.
How far back does the audit go?
Notis starts logging from the moment you enable this workflow. For past events, you'd need to manually record history, but going forward you'll have a complete log.
Can I export this data for reporting?
Yes. Your sheet is in Google Sheets, so you can easily export to CSV, create charts, or share filtered views with stakeholders.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to Google Sheets. A trigger fires from one place; an action lands in another.
Google Calendar triggers
Google Sheets 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.
Add Sheet to Spreadsheet
Adds a new sheet (worksheet) to a spreadsheet. use this tool to create a new tab within an existing google sheet, optionally specifying its title, index, size, and other properties.
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.
Aggregate Column Data
Searches for rows where a specific column matches a value and performs mathematical operations on data from another column.
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.
Append Dimension
Tool to append new rows or columns to a sheet, increasing its size. use when you need to add empty rows or columns to an existing sheet.
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).
Batch get spreadsheet
Retrieves data from specified cell ranges in a google spreadsheet; ensure the spreadsheet has at least one worksheet and any explicitly referenced sheet names in ranges exist.
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Batch update spreadsheet
Updates a specified range in a google sheet with given values, or appends them as new rows if `first cell location` is omitted; ensure the target sheet exists and the spreadsheet contains at least one worksheet.
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).
Batch Update Values by Data Filter
Tool to update values in ranges matching data filters. use when you need to update specific data in a google sheet based on criteria rather than fixed cell ranges.
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.
Clear Basic Filter
Tool to clear the basic filter from a sheet. use when you need to remove an existing basic filter from a specific sheet within a google spreadsheet.
Clear spreadsheet values
Clears cell content (preserving formatting and notes) from a specified a1 notation range in a google spreadsheet; the range must correspond to an existing sheet and cells.
Connect any two apps with Notis in the middle.
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When this happens · Trigger
Do this · Action
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