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Give project file updates a quick visual signal

A small Slack reaction can draw attention to the conversation tied to an updated OneDrive project file.

Trigger

OneDrive Item Updated Trigger

Triggers when an existing file or folder is modified in OneDrive. Uses Gmail-style state management and only detects actual modifications, not new creations.

Action

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.

Why this helps

Important changes can be hard to spot in a busy conversation, especially when you are returning to it after a context switch.

  • Add a visual cue to a related Slack message.
  • Make a conversation easier to revisit after switching tasks.
  • Avoid adding another full notification when a marker is enough.

Setup

Build it in a few focused steps.

  • 1Connect OneDrive and Slack to Notis once in the portal.
  • 2Create an automation with a plain-language instruction to react to the relevant Slack message when a project file changes in OneDrive.
  • 3Choose OneDrive Item Updated as the trigger and select a run-report channel.
  • 4Test with one real file update and a known Slack message to verify the intended reaction target.

Questions about this workflow

Can the reaction find any related message automatically?

Describe the message context clearly in the prompt and test it. The action adds a reaction to an existing Slack message.

Does the reaction explain what changed?

No. It is a visual marker. Use a Slack message workflow if you need a written explanation.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

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

One drive 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

Onedrivebasetrigger

Base trigger for OneDrive changes using Gmail-style state management. Subclasses override `filter_changes(...)` to extract only the relevant items.

TriggerPolling

Add an emoji alias

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

ActionInstant

OneDrive File Created Trigger

Triggers when a new file is created in OneDrive. Uses Gmail-style state management for reliable duplicate prevention.

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

File Updated

Trigger that fires when a OneDrive file's content or metadata changes. Returns file ID, last modified time, and modifier info.

TriggerPolling

Add a star to an item

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

ActionInstant

OneDrive Folder Created Trigger

Triggers when a new folder is created in OneDrive. Uses Gmail-style state management for reliable duplicate prevention.

TriggerPolling

Add call participants

Registers new participants added to a slack call.

ActionInstant

OneDrive Item Deleted Trigger

Triggers when a file or folder is deleted in OneDrive. Uses Gmail-style state management for reliable duplicate prevention.

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

Item Moved or Renamed

Triggers when a file or folder is moved to a different path or renamed in OneDrive. Includes both old and new path/name data in the payload.

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.

One drive and Slack, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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