Check a proposed time before confirming
Turn a booking request into a fast availability check, so you can answer with confidence.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Find free slots
Finds free/busy time slots in google calendars for specified calendars within a defined time range (defaults to the current day utc if `time min`/`time max` are omitted), enhancing busy intervals with event details; `time min` must precede `time max` if both are provided.
Why this helps
A proposed time arrives in another tool, and confirming it means stopping to check Calendar manually.
- Check free slots for a time window supplied in the request.
- Keep availability review connected to the request that started it.
- Reduce manual calendar switching before responding.
Setup
Build it in a few focused steps.
- 1Connect Google Calendar once in the Notis portal.
- 2Create an automation in Automations, New Automation, and give it a name.
- 3Describe that when an HTTP request provides a proposed time range, Notis should check free slots in that range and report the result.
- 4Pick a webhook trigger and choose where run reports go.
- 5Test with one real request containing a valid time range.
Questions about this workflow
Does this send a booking confirmation?
No. It checks availability and reports the result for you to use.
What does the request need to include?
It should include the proposed time range and any calendar context needed for the availability check.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Super to Google Calendar. A trigger fires from one place; an action lands in another.
Google Super 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.
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.
Delete Calendar
Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Update Calendar
Updates metadata for a calendar.
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.
Clear Calendar
Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.
Comment Added (Docs/Sheets/Slides)
Triggers when a new comment is added to Google Docs, Sheets, or Slides.
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.
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 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.
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.
Create a calendar
Creates a new, empty google calendar with the specified title (summary).
Connect any two apps with Notis in the middle.
Google Super and Google Calendar, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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