Automate Availability Checks for External Meeting Requests
Your email or Slack bot receives a meeting request. Notis instantly queries your Google Calendar for free/busy data and sends you availability options to share—no manual calendar hunting.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Query Free/Busy Information
Returns free/busy information for a set of calendars.
Why this helps
External stakeholders request meetings via email or Slack. You respond 'let me check my calendar' but then forget. Hours later, the conversation fades and the meeting never happens.
- Respond to meeting requests in minutes with actual availability data
- Integrate external communication tools with your calendar view
- Reduce back-and-forth about scheduling across email and Slack
- Surface your calendar availability without manual copy-paste
Setup
Build it in a few focused steps.
- 1Connect Google Calendar to Notis.
- 2Create an automation: 'When a webhook request arrives, check my calendar for free/busy information and report back the available slots.'
- 3Set up your external tool (email automation, Slack bot, or custom integration) to send a webhook to the Notis endpoint when a meeting request lands.
- 4Specify the time range to search (e.g., 'next 5 business days').
- 5Test by triggering the webhook and confirming Notis returns your availability.
Questions about this workflow
What information does the webhook need to send?
Just the date range you want to search. Notis connects to your Google Calendar and handles the availability query.
Can I exclude certain times from the availability results?
Yes. Tell Notis which calendar categories or time blocks to exclude (focus time, lunch, etc.).
Does this create the meeting event automatically?
No, it just reports your availability. You can set up a separate automation to create the event once the external party confirms.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Asana to Google Calendar. A trigger fires from one place; an action lands in another.
Asana triggers
Google Calendar actions
Attachment Added to Task
Triggers when an attachment is added to a task.
Insert Calendar into List
Inserts an existing calendar into the user's calendar list.
New Comment on Task
Triggers when a comment is added to a task in a project.
Update Calendar List Entry
Updates an existing entry on the user\'s calendar list.
New Task Created
Triggers when a new task is created in a project.
Delete Calendar
Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Task Moved to Section
Triggers when a task is moved to a section in a project.
Update Calendar
Updates metadata for a calendar.
Tag Added to Task
Triggers when a tag is added to a task. Note: Asana's event structure is inverted for tag events — the resource is the task and the parent is the tag. So parent.gid gives the tag GID.
Clear Calendar
Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.
Task Updated
Triggers when a task is updated in a project.
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.
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.
Not just Asana and Google Calendar. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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