Format Rules Drive Calendar Updates—No Manual Work
Flag an item with conditional formatting in your spreadsheet, and Notis automatically patches the matching calendar event with an updated title, color, or description.
Trigger
Conditional Format Rule Changed
Triggers when conditional formatting rules change in a Google Spreadsheet. Detects when rules are added, updated, or removed. Uses snapshot-based diffing to detect changes between polls.
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
Visual flags in a spreadsheet (color-coded status, highlighting) don't translate to the calendar, making it hard to see urgency at a glance.
- Calendar reflects the same visual priority as the spreadsheet
- Reduces need to manually update event titles or descriptions
- Keeps urgency signals consistent across tools
- Automates status synchronization
Setup
Build it in a few focused steps.
- 1Connect both integrations to Notis.
- 2Ask Notis: 'When a row in my spreadsheet gets highlighted by a conditional format rule (e.g., turns red for urgent), update the matching calendar event's title to include "URGENT."'
- 3Explain which format rule to monitor.
- 4Select 'Conditional Format Rule Changed' as your trigger.
- 5Manually apply a conditional format to test and confirm the event updates.
Questions about this workflow
Can Notis detect formatting changes even if the cell value doesn't change?
Yes. Notis monitors formatting rules, so if a row becomes highlighted due to a value reaching a threshold, the event patches accordingly.
Can I map specific colors to specific event properties?
Absolutely. Tell Notis 'red = mark as urgent in the title, green = mark as complete,' and it will apply those mappings.
What if the format changes but I don't want the event to update?
You can disable this automation or refine your prompt to only patch events under certain conditions.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Sheets to Google Calendar. A trigger fires from one place; an action lands in another.
Google Sheets triggers
Google Calendar actions
Aggregate Metric Changed
Triggers when an aggregate metric (SUM/COUNT/AVG/MIN/MAX) changes in a Google Sheets spreadsheet. This trigger monitors an aggregate calculation on a target column (optionally filtered by a search column/value) and fires when the calculated result changes.
Insert Calendar into List
Inserts an existing calendar into the user's calendar list.
Cell Range Values Changed
Triggers when values in a specified A1 range change in Google Sheets. This trigger monitors a specific cell or range of cells and fires when any values change.
Update Calendar List Entry
Updates an existing entry on the user\'s calendar list.
Conditional Format Rule Changed
Triggers when conditional formatting rules change in a Google Spreadsheet. Detects when rules are added, updated, or removed. Uses snapshot-based diffing to detect changes between polls.
Delete Calendar
Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Data Validation Rule Changed
Triggers when data validation rules change (added/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Update Calendar
Updates metadata for a calendar.
Developer Metadata Changed
Triggers when developer metadata entries change (new/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Clear Calendar
Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.
Filtered Range Values Changed
Polling trigger that monitors Google Sheets filtered ranges for value changes. Uses snapshot-based diffing to detect when values matching a data filter change. Emits the matched values when changes are detected.
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 Rows in Google Sheet
Simple polling trigger that monitors Google Sheets for new rows. Detects when new rows are added and returns the complete row data. Perfect for triggering any workflow based on new sheet entries.
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.
New Sheet Added in Google Spreadsheet
Polling trigger that detects when a new sheet is added to a Google Spreadsheet.
Create a calendar
Creates a new, empty google calendar with the specified title (summary).
Connect any two apps with Notis in the middle.
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When this happens · Trigger
Do this · Action
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