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Make newly shared Drive files easier to find

When access is granted, make the file discoverable in Slack so collaborators can find the resource in their working context.

Trigger

File Shared (Permissions Added)

Triggers when new sharing permissions are granted to a file or folder. Uses Drive's `changes.list` endpoint with inline `permissions` in the `fields` mask so each change carries the file's current permission set provider-atomically. We diff that against `seen_permission_keys` to identify newly added grants. Drive page tokens are the primary cursor; if Drive rejects a stored token, the trigger raises `PollingTriggerError` without clearing state rather than silently re-baselining and dropping events. Limitation: truly ephemeral permissions (added and revoked between two polls without any other file modification in between) are not detected. Drive Activity API would catch those but requires an additional OAuth scope and a different payload contract.

Action

Add a remote file

Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.

Why this helps

A permission change can happen quietly, leaving collaborators unsure where the newly shared file belongs.

  • Create a Slack reference when a file receives a new sharing permission.
  • Make a shared Drive resource easier to discover in Slack.
  • Reduce the need to announce access changes manually.

Setup

Build it in a few focused steps.

  • 1Connect Google Super and Slack to Notis once in the portal.
  • 2Create an automation and describe which newly shared files should be added as Slack remote file references.
  • 3Pick File Shared (Permissions Added) as the trigger and choose the channel for run reports.
  • 4Test with one real file shared with a collaborator.

Questions about this workflow

Does this upload the Drive file to Slack?

No. The Slack action adds a reference to an external file; the Drive file remains in Google Drive.

Will it detect every brief permission change?

The trigger may miss a permission that is added and removed between polls without another file modification.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

Google Super triggers

Slack actions

Recurring trigger

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

TriggerScheduled

Set snooze duration

Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.

ActionInstant

Webhook trigger

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

TriggerInstant

Add a custom emoji to a Slack team

Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.

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

Add an emoji alias

Adds an alias for an existing custom emoji in a slack enterprise grid organization.

ActionInstant

Attendee Response Changed

Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.

TriggerPolling

Add a remote file

Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.

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

Add a star to an item

Stars a channel, file, file comment, or a specific message in slack.

ActionInstant

Comment Added (Docs/Sheets/Slides)

Triggers when a new comment is added to Google Docs, Sheets, or Slides.

TriggerPolling

Add call participants

Registers new participants added to a slack call.

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

Add emoji

Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.

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

Add reaction to message

Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.

ActionInstant

Connect any two apps with Notis in the middle.

Google Super and Slack, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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