> ## Documentation Index
> Fetch the complete documentation index at: https://learn.workflow.dog/llms.txt
> Use this file to discover all available pages before exploring further.

# Mark as Unread

> Mark one Microsoft Outlook message as unread.

The **Mark as Unread** action sets an Outlook message's read state to `false`.
Use it to return processed mail to a person's attention.

## Inputs

| Input                   | Type              | Required | Description                             |
| ----------------------- | ----------------- | -------- | --------------------------------------- |
| **Third-party account** | Microsoft account | Yes      | Outlook account containing the message. |
| **Message ID**          | String            | Yes      | Microsoft ID of the message to update.  |

<Note>This action changes the message and returns no output.</Note>