Turn a key business threshold into a mailed notice
Give a meaningful metric change a clear next step with a prepared, approved letter.
Trigger
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.
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
Important totals can change quietly, leaving a time-sensitive notice waiting for someone to spot the new number.
- Connect a tracked total to a defined follow-up.
- Reduce the need to watch a spreadsheet manually.
- Keep mailed notices tied to a metric change.
Setup
Build it in a few focused steps.
- 1Connect Google Sheets and Docupost once in the Notis portal.
- 2Create an automation in Automations, New Automation, and name the threshold notice.
- 3Tell Notis which aggregate change and user-supplied threshold should prompt the approved letter, and provide the recipient details and PDF URL.
- 4Choose the Aggregate Metric Changed trigger for the relevant calculation, then select a report channel.
- 5Test with one real metric change and verify the threshold, recipient, and document before sending.
Questions about this workflow
What calculation can start this workflow?
The Aggregate Metric Changed trigger supports SUM, COUNT, AVG, MIN, or MAX on a target column, optionally filtered by a search column and value.
Does the trigger know the business threshold?
It fires when the aggregate result changes. The threshold and intended response must be supplied in your instruction or data.
What is required to mail a notice?
Recipient name and address, sender details, and a PDF URL, plus a clear instruction that defines when the letter is approved to send.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Sheets to Docupost. A trigger fires from one place; an action lands in another.
Google Sheets 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://...')
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.
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.
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.
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.
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.
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.
Connect any two apps with Notis in the middle.
Google Sheets and Docupost, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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