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How to Fix Microsoft 365 Token Protection Errors in Samsung Email
Question details
Users are unable to sign into Microsoft 365 via the Samsung Email app due to a Token Protection authentication error (Status Code 1002) occurring after MFA.
- Product
- Samsung Email and Microsoft 365
- Device & OS
- not provided
- Scenario
- Attempting to access a Microsoft 365 email account via the native Samsung Email application.
- Observed behavior
- Sign-in fails after multifactor authentication, returning an unbound session error and status code 1002 in the sign-in logs.
Ensure you have access to your Microsoft Entra ID sign-in logs and administrator permissions to review Conditional Access policies before troubleshooting.
Switch to a Supported Mail Client (Outlook Mobile)
The Samsung Email app may not fully support Microsoft's latest Token Protection requirements. Switching to the official Outlook app often resolves this instantly.
Since Token Protection requires advanced session binding that some third-party or native email apps do not support, using Microsoft's official application is the most reliable workaround.
Install the Microsoft Outlook app from the Google Play Store on your device.
Open the Outlook app, tap 'Add Account', and enter your Microsoft 365 credentials.
Follow the prompts to complete the multifactor authentication process.
Review Entra ID Conditional Access Policies
Identify if a specific Conditional Access policy is blocking the Samsung Email app due to unbound session tokens.
Escalate to Microsoft Support
If policies appear correct and the issue persists across clients, engage Microsoft Support for advanced diagnostics.
Experience a Seamless and Secure Office Alternative with WPS Office
While troubleshooting Microsoft 365 sign-in issues, you can continue managing your documents without interruption. WPS Office is a lightweight, fully compatible alternative that doesn't require complex Conditional Access configurations to access your local files.
- 1. Download WPS Office: Visit the official WPS website to download and install the software for free.
- 2. Open your files: Launch WPS Office and directly open your existing .docx, .xlsx, or .pptx files.
- 3. Work offline: Edit and save your documents locally without worrying about cloud authentication errors.
Frequently Asked Questions
What does status code 1002 mean in Microsoft Entra?
Status code 1002 indicates a Token Protection failure, usually because the session token is unbound or the application does not support Microsoft's latest token binding requirements.
Why does Microsoft 365 sign-in fail only on the Samsung Email app?
The native Samsung Email app may lack full integration with Microsoft's advanced Conditional Access and Token Protection features, causing authentication to fail after the MFA step.
Can I bypass Token Protection for mobile email?
Administrators can configure Conditional Access policies in Microsoft Entra to exclude specific apps or devices, but this reduces overall security and is generally not recommended.
Does the Microsoft Outlook mobile app experience the same 1002 error?
Typically, no. The official Outlook mobile app is designed to fully support Microsoft's Token Protection and Conditional Access policies, making it the recommended alternative.
