Skip to Content

MC1478962 Microsoft Teams Review Conditional Access policies to prevent sign-in issues on Teams Android devices

Summary

  • Microsoft Teams Android devices may experience sign-in issues due to stricter Conditional Access evaluation for certain resources.
  • The impact applies to Teams Android endpoints, including Teams Rooms on Android, Teams phones, Teams displays, and Teams panels.
  • Organizations using resource-specific Microsoft Entra Conditional Access policies for Teams Android devices should review blocked sign-ins and identify affected resources in sign-in logs.
  • If affected, update Conditional Access exclusions for commonly blocked Microsoft resources to prevent sign-in failures.

Microsoft is rolling out stricter Conditional Access policies for Teams Android devices by mid-October 2026, which may cause sign-in issues if resource-specific policies block access. Organizations should review and adjust exclusions in Conditional Access policies and check sign-in logs to resolve problems.

Message ID: MC1478962
Primary Service: Teams
Admin Impact: Medium
User Impact: Low
Release Start: 01 Sept 2026
Release End: 15 Oct 2026
Service: Microsoft Teams
Category: Plan for change
Tags: Feature update, User impact, Admin impact
Rollout: September 2026, October 2026

History

9/24/2026 Item Added to Message Center

Microsoft Message

To strengthen platform security, access to some resources may be subject to stricter Conditional Access policy evaluation, which may cause sign-in issues on Teams Android devices. The rollout will occur for app version 1449/1.0.96.2026249711 and is targeted to complete by mid-October 2026.

Rollout schedule

General Availability (Worldwide and GCC): Rollout began in late September 2026 and is expected to complete by mid-October 2026.

Impact on your organization

Who is affected

  • Organizations that use Teams Android devices and have resource-specific Conditional Access policies configured.
  • Administrators responsible for managing Microsoft Entra Conditional Access policies for Teams Android devices.

Platforms and services

  • Microsoft Entra Conditional Access
  • Microsoft Teams
  • Teams Rooms on Android
  • Teams phones
  • Teams displays
  • Teams panels

What will happen

Teams Android devices may experience sign-in issues if required resources are blocked by Conditional Access policies.

Action required and recommendations

No action may be required if your tenant has not configured resource-specific Conditional Access policies for Teams Android devices. If your tenant has configured resource-specific Conditional Access policies and is experiencing sign-in issues:

  • Ensure the following commonly blocked resources are included in the exclusion list:
    • Microsoft 365 App Catalog Services (e8be65d6-d430-4289-a665-51bf2a194bda)
    • Marketplace Extensions Runtime (08ff1ce2-4973-4b08-86a3-ebed13badc7f)
    • Office Voice Front Door (446f6ff1-f129-4dd2-930e-c5c620fb4121)
  • Review the interactive and non-interactive Microsoft Entra sign-in logs for the affected room resource account to identify any blocked sign-ins.
  • Since the affected resource may vary, confirm the blocked resource and applicable Conditional Access policy in the sign-in logs before making changes to your policies.
  • Sample Resource Blocking Conditional Access Policy:

Learn more

  • Fix Conditional Access-related issues for Teams Android devices – Microsoft Teams | Microsoft Learn
  • Targeting Resources in Conditional Access Policies – Microsoft Entra ID | Microsoft Learn
  • New-MgServicePrincipal (Microsoft.Graph.Applications) | Microsoft Learn

Compliance considerations

No compliance considerations identified. Review as appropriate for your organization.