How can I fix the AADSTS5000225 error?

The AADSTS5000225 error typically indicates that there is an issue with the authentication process, often related to the user's account or the application configuration. Here are some steps you can take to resolve this error:

1. Check User Account Status: Ensure that your account is active and not disabled. You may need to contact your administrator if you suspect any issues with your account status.
2. Verify Application Registration: Make sure that the application you are trying to access is correctly registered in Azure AD and that the permissions are set properly.
3. Use the Correct Sign-in URL: If your application is multitenant, ensure you are using the appropriate sign-in URL. For multitenant applications, use https://login.microsoftonline.com/organizations. For applications that support both organizational and personal accounts, use https://login.microsoftonline.com/common.
4. Clear Cached Credentials: Sometimes, cached credentials can cause issues. You can clear them by removing the cached Microsoft Office account identities from the registry or using the Windows Credential Manager.
5. Check for Conditional Access Policies: If your organization has implemented Conditional Access policies, ensure that your device and user conditions meet the requirements to access the application.
6. Contact Support: If the issue persists after trying the above steps, consider reaching out to Microsoft support for further assistance.

By following these steps, you should be able to address the AADSTS5000225 error and successfully log in.

References:

• Error AADSTS50020 - User account from identity provider does not exist in tenant
• Fix authentication issues in Microsoft 365 apps when you try to connect to a Microsoft 365 service