> This page is for Data Protection.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.eon.io/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.eon.io/_mcp/server.

# Microsoft 365: Restore User Data

A user restore brings back a person's whole working set, both mail and files, in one job.
When a user account is wiped or a departing employee's data is cleared too early, that job brings both back from a snapshot.

This article explains how to restore a Microsoft 365 user's Exchange mailbox and OneDrive account together.

A restore job covers one user, so recovering several people means running the job once for each of them.

User data always restores to its original user, in the tenant it was backed up from.
You can't redirect it to a different user account or a different tenant.

A user restore handles OneDrive and the mailbox differently:

* **OneDrive files**: Overwrite whatever is at their original locations.
  To keep the files that are there, [restore individual files](/data-protection/restoring/restore-saas-applications/restore-microsoft-365/restore-onedrive) instead.

* **Mail**: Imports as new into a folder named for the restore time, such as `Eon Restore 2026-07-20T08.22.23Z`, preserving the original folder structure beneath it.
  Eon doesn't merge it with mail that's already there, so running the same restore twice leaves the user with two copies of every message.

## Restore a user

You can find backed-up users and start a restore from the

SaaS inventory

.

#### Before you start

Before you restore a user, make sure:

* A [Microsoft 365 restore tenant] is connected for the tenant the user was backed up from.

* You've checked whether a previous restore of the same mailbox already ran, so you don't leave the user with duplicate mail.

#### Select the snapshot and the user to restore

1. In your

   SaaS inventory

   , open the Microsoft 365 tenant the user was backed up from.

2. Navigate to **Users** in the side menu, and then select the user you want to restore.

3. Click the snapshot date.
   You'll see a calendar view with colored dots on the days when snapshots were taken.
   There can be more than one snapshot per day.

   When you click a day, a list of Eon snapshots taken that day is displayed below the calendar.

4. Select the snapshot you want to restore.

5. Click **Restore user**.

#### Choose the restore tenant

Choose the Microsoft 365 restore tenant you want to restore to.

Only the tenant the user was backed up from is available.

#### Start the job and monitor it

> **Warning**
>
> Restoring a whole OneDrive account overwrites the user's files at their original locations, and there's no opt-out.
> The **Restore Mode** choice exists only on item-level restores.
> To keep the current files, restore the items you need individually into a new folder instead.

Click **Restore**, then track the job from **View job**, or from the

Restore jobs tab

on the Jobs page.

When the job completes, the user's mail is in a new `Eon Restore` folder in their mailbox, and their OneDrive files are back at their original paths.
For how sharing permissions come back, see [Microsoft 365: Restore OneDrive Data](/data-protection/restoring/restore-saas-applications/restore-microsoft-365/restore-onedrive).

## See also

* [Microsoft 365 Support](/data-protection/saas-workloads/microsoft-365/microsoft-365)

* [Microsoft 365: Restore Exchange Data](/data-protection/restoring/restore-saas-applications/restore-microsoft-365/restore-exchange)

* [Microsoft 365: Restore OneDrive Data](/data-protection/restoring/restore-saas-applications/restore-microsoft-365/restore-onedrive)

* [Restore Job Statuses](/data-protection/restoring/restore-job-statuses)

[Microsoft 365 restore tenant]: /data-protection/saas-workloads/microsoft-365/connections/connect-restore-tenants