Send Updated Appointment Details by Letter
When an appointment changes, get the revised information into a physical letter without relying on a separate reminder.
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
Send Letter
Tool to send a letter via u.s. mail with specified recipient, sender, and pdf. use after confirming recipient and document details. example: send letter(to name='john doe', to address='123 main st, ...', file url='https://...')
Why this helps
A changed appointment can leave people working from outdated details, especially when a printed notice is expected.
- React to an existing event being modified.
- Use the event's change details to guide the letter content you prepare.
- Keep the postal address and PDF URL explicit in your instruction.
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Docupost once in the Notis portal.
- 2Create an automation in Automations, then choose New Automation and give it a name.
- 3Tell Notis which event changes warrant a letter and provide the confirmed recipient, sender, and PDF URL.
- 4Pick the Google Calendar Event Updated trigger and choose where run reports should go.
- 5Test with one real update and check the change details and letter recipient.
Questions about this workflow
Does the trigger return the complete revised event?
Event Updated returns the event ID, change type, and specific fields that changed with their previous and new values. Use those details to identify relevant updates.
Does Notis create a new PDF for the letter?
The Docupost Send Letter action expects a PDF URL. Provide a ready document URL in your instruction or process.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to Docupost. A trigger fires from one place; an action lands in another.
Google Calendar triggers
Docupost actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Send Letter
Tool to send a letter via u.s. mail with specified recipient, sender, and pdf. use after confirming recipient and document details. example: send letter(to name='john doe', to address='123 main st, ...', file url='https://...')
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Send Postcard
Tool to send a postcard via u.s. mail with specified recipient, sender, and front/back images. use after confirming recipient addresses and design urls. example: send postcard(to name='john doe', ..., front image='https://...', back image='https://...')
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
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.
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.
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).
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
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).
Connect any two apps with Notis in the middle.
Google Calendar and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Docupost.