Skip to content
Notis

Get a visual snapshot when tracked cells change

Turn a change in a watched range into a compact image for quick review.

Trigger

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.

Action

Convert HTML to PNG

Tool to convert HTML string to PNG image. Use when you need a PNG from HTML after preparing your markup.

Why this helps

Cell changes can be easy to miss when a sheet has many tabs and contributors.

  • Make a tracked range easier to review at a glance.
  • Create a visual record when monitored values change.
  • Cut down on repeated manual checks.

Setup

Build it in a few focused steps.

  • 1Connect Google Sheets and CustomJS once in the Notis portal.
  • 2Create an automation named Tracked range snapshot.
  • 3Tell Notis to summarize the changed range values and render a clear visual snapshot as a PNG.
  • 4Pick the Google Sheets Cell Range Values Changed trigger and its available range settings.
  • 5Choose a report channel, then test with one real range change.

Questions about this workflow

Does the trigger monitor any cell range?

It monitors the specific A1 range selected for the trigger.

Will it show the full sheet?

The workflow is intended for the monitored range and the values made available by the trigger.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Google Sheets to Customjs. A trigger fires from one place; an action lands in another.

Google Sheets triggers

Customjs actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Authenticate CustomJS API Key

Tool to authenticate a CustomJS API key. Use when verifying a user's API key before making further requests.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Convert HTML to PDF

Tool to convert HTML to a PDF document. Use when you need to generate a PDF from raw HTML. Returns raw PDF bytes suitable for download or storage.

ActionInstant

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.

TriggerPolling

Convert HTML to PNG

Tool to convert HTML string to PNG image. Use when you need a PNG from HTML after preparing your markup.

ActionInstant

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.

TriggerPolling

Capture webpage screenshot

Tool to capture a screenshot of a webpage. Use when you need a visual snapshot of a URL.

ActionInstant

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.

TriggerPolling

Merge multiple PDFs into one

Tool to merge multiple PDF files into a single PDF. Use when you have multiple PDF URLs and want one combined PDF.

ActionInstant

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.

TriggerPolling

Run Puppeteer Script

Tool to run a Puppeteer script and capture a screenshot. Use when automating headless browser tasks and needing a PNG output. Use after confirming the script logic.

ActionInstant

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.

TriggerPolling

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.

TriggerPolling

Connect any two apps with Notis in the middle.

Google Sheets and Customjs, 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 Customjs.