---
title: "Voice for Teams: Security Update Re-Authentication"
slug: "voice-for-teams-security-update-re-authentication"
updated: 2026-06-01T17:18:13Z
published: 2026-06-01T17:18:13Z
canonical: "help.8x8.com/voice-for-teams-security-update-re-authentication"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Voice for Teams: Security Update Re-Authentication

## Overview

Microsoft recently introduced new authentication requirements in a Security Update, which changes how 8x8 Voice for Microsoft Teams requests and maintains permissions.

If you previously enabled the **Auto Sync** before **September 2, 2025**, then a **Microsoft Global Administrator** must follow the simple [Auto Sync re-enablement procedure](/support/docs/voice-for-teams-security-update-re-authentication#procedure) below **before September 15, 2025** to ensure that your 8x8 Voice for Microsoft Teams service continues to run smoothly.

> [!NOTE]
> Note:
> 
> This procedure will not affect user operation in any way. However, changes made to Teams user profiles in 8x8 Admin Console during the procedure will not be synced to the Voice for Teams admin portal until it is completed.Your content goes here

**Also:** If needed, you can review specific details about the changes Microsoft is implementing in an external copy of their announcement, [here](https://mc.merill.net/message/MC1134747). This message was originally presented in your [Microsoft 365 Message Center](https://admin.microsoft.com/?ref=MessageCenter/:/messages/MC1134747).

## Applies To

- 8x8 Voice for Microsoft Teams
- Microsoft Teams
- Auto Sync

## Procedure

In compliance with Microsoft security requirements, the process below will re-authorize 8x8 Voice for Microsoft Teams in your Microsoft 365 environment, and is expected to take less than two minutes.

> [!WARNING]
> **IMPORTANT**
> 
> The procedure below must be performed by a **Microsoft Global Administrator**.

**Also:** If you have multiple Microsoft login IDs and/or tenants, be sure to log into the 8x8 Voice for Microsoft Teams admin portal using the appropriate credentials.

1. Log into the [Voice for Teams admin portal](https://admin.msteams.8x8.com/) with your **Microsoft Global Administrator** credentials.
2. In the **Services** > **Teams** tab, click on the **Auto Sync** toggle switch to turn the feature **Off** (gray).

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033796416.png)
3. In the confirmation popup window, click **Confirm**.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033813808.png)
4. Click on the **Auto Sync** toggle switch to turn the feature back **On** (blue).

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033840960.png)
5. In the **Authentication Required** popup, click **Proceed**.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033857076.png)
6. Select or log in with the appropriate **Microsoft Global Administrator** account to authenticate your action with.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033874435.png)
  - Note that you may need to supply your password and/or authentication code.
7. Click **Accept** in the **Permissions requested** popup.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033890027.png)
8. Click **Sync Now - Changes Queued** in the **Manual Sync Required** popup.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033906968.png)

- The **Sync Now** button should display **Syncing**. If it doesn’t do this automatically, just refresh your browser page.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033921754.png)
- This required re-authentication procedure will be complete once the sync process is finished, and the white **Sync Now** button with a green check mark is displayed.

![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/image1757033974218.png)