How to Fix SharePoint and Teams Sign-In Error AADSTS90072
Question details
The user is unable to sign into Microsoft SharePoint or Teams and receives the error code AADSTS90072.
- Product
- Microsoft SharePoint and Microsoft Teams
- Device & OS
- not provided
- Scenario
- Attempting to access a company or school SharePoint site or Teams tenant.
- Observed behavior
- The sign-in process is blocked with error AADSTS90072, which happens because a personal Microsoft account (e.g., live.com) is used to access an organizational tenant where that specific identity does not exist.
Verify that you have the correct login credentials provided by your organization (work or school email address) rather than your personal Microsoft account details.
Switch to a Work or School Account
Ensure you are logging in with an organizational identity rather than a personal Microsoft account, as enterprise tenants restrict personal emails by default.
Error AADSTS90072 specifically flags an identity mismatch. It means the system recognizes your credentials as a personal account (like @outlook.com or @live.com), but the SharePoint site or Teams tenant requires a corporate or educational account.
Click on your profile picture in the top right corner of the Teams or SharePoint interface and select 'Sign out'.
On the sign-in screen, choose 'Work or school account' instead of 'Personal account'.
Type the exact email address and password provided by your company or school administrator, then complete any required Multi-Factor Authentication (MFA).
Test Access via InPrivate or Incognito Web Browser
Using a private browsing window helps determine if the issue is caused by cached personal credentials conflicting with the desktop app.
Contact the Tenant Administrator
Reach out to your organization's IT department to ensure your account is properly configured and provisioned for access.
Avoid Login Hassles with WPS Office
If strict enterprise sign-in requirements and cloud tenant issues are slowing down your personal productivity, consider using WPS Office. It provides a lightweight, highly compatible offline and online suite that lets you create, edit, and save documents without navigating complex organizational permissions.
- 1. Download the installer: Visit the official WPS website and download the free WPS Office installer.
- 2. Install the software: Run the setup file and follow the quick installation prompts on your device.
- 3. Open your files instantly: Double-click any existing Microsoft Office document to open it seamlessly in WPS Office without needing complex tenant logins.

Frequently Asked Questions
What exactly does error code AADSTS90072 mean?
This error code indicates an identity mismatch. It means the account you are trying to use (usually a personal account) does not exist in the specific Azure Active Directory (AAD) tenant associated with the SharePoint site or Teams environment you are trying to access.
Can I use my personal Microsoft account for a company Teams meeting?
You can join a Teams meeting as a guest using a personal account if the organization's IT administrator has enabled external guest access. If it is disabled, you must use a provisioned work account or join anonymously via the web browser if permitted.
Why can I access my emails but get this error in SharePoint?
Your personal or previous organization's credentials might be cached in your browser or Windows Credential Manager. The system automatically tries to pass these cached credentials to SharePoint, causing a rejection. Clearing your browser cache or using an Incognito window usually resolves this.
How do I clear the cached credentials causing this error on Windows?
Open the Start menu, search for 'Credential Manager', and click on 'Windows Credentials'. Look for any saved credentials related to MicrosoftOffice or Teams, select them, and click 'Remove'. Afterward, restart your PC and try signing in again.




