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How to Fix Outlook AADSTS50020 Error on Android
Question details
The user is unable to sign into Outlook and Microsoft Office apps on an Android device due to an AADSTS50020 error, even though the same account works on a laptop.
- Product
- Outlook for Android
- Device & OS
- Android 14
- Scenario
- Attempting to sign into the Outlook mobile app using a work or school account.
- Observed behavior
- The app displays error code AADSTS50020, indicating that the user account from the identity provider does not exist in the selected tenant and cannot access Outlook Mobile.
Ensure you have your exact Microsoft 365 work or school email address and password handy before clearing your application data.
Clear App Cache and Verify Account Details
Clearing the Outlook app cache and browser cookies removes corrupted sign-in tokens that often cause the tenant mismatch error.
This error frequently occurs when the mobile device attempts to pass an old session token or when a personal Microsoft account is mistakenly used instead of an organizational account.
Double-check that you are entering the exact work or school email address assigned by your organization, not a personal Microsoft account.
On your Android device, go to Settings > Apps > Outlook > Storage, then tap 'Clear Cache' and 'Clear Data'.
Open your default web browser (such as Google Chrome), tap the menu icon, navigate to Settings > Privacy and security > Clear browsing data, and select 'Cookies and site data' to clear them.
Launch the Outlook app and carefully enter your work or school credentials to authenticate fresh with the Azure tenant.
Contact Your IT Administrator
If local troubleshooting fails, the issue is likely a configuration problem within your organization's Azure Active Directory.
Try WPS Office for a Seamless Mobile Experience
Having trouble accessing Microsoft 365 mobile apps due to complex tenant sign-in errors? WPS Office provides a free, lightweight, and highly compatible alternative for viewing, editing, and managing documents on your Android device without strict Azure Active Directory requirements.
- 1. Install the App: Search for WPS Office in the Google Play Store and tap Install.
- 2. Open Your Files: Launch WPS Office and instantly browse your device storage to open existing documents.
- 3. Edit Without Hassle: Edit, save, and share your files seamlessly without dealing with enterprise login blocks.
Frequently Asked Questions
What does error AADSTS50020 mean on Android?
This error means that while your Microsoft account successfully authenticated, the specific Azure Active Directory tenant does not recognize your user account, preventing you from accessing the organizational app.
Why does my account work on my laptop but fail on my Android phone?
Your laptop might be authenticating through a different cached credential, a primary domain, or an internal network. The Android app might be attempting to sign into a specific external or guest tenant where your account hasn't been properly added.
Can using a personal Microsoft account cause the AADSTS50020 error?
Yes. Attempting to sign into an enterprise environment or app using a personal Microsoft account (like @outlook.com or @hotmail.com) instead of an organizational work or school account is a leading cause of this error.
