Encountering Microsoft Teams Error AADSTS90072 can halt your productivity mid-meeting or sign-in. 😩 This Azure Active Directory (AAD) error typically signals an internal authentication hiccup, often tied to client assertion or secret mismatches during sign-in. Don't worry—most users resolve it in minutes with these targeted steps. We've distilled the latest fixes to get you back collaborating smoothly. Let's dive in!
At its core, AADSTS90072 means "The request body must contain the following parameter: 'client_assertion' or 'client_secret'." It strikes when Teams can't validate your credentials against Azure AD. Common triggers include:
Pro tip: This error surged in recent Teams updates due to enhanced security, but it's fixable without IT intervention 90% of the time. 👆
Follow these prioritized steps. Start simple and escalate. Most fixes take under 5 minutes!
| Action | Steps | Why It Works |
|---|---|---|
| 🔑 Password Reset | Go to account.microsoft.com > Security > Change password. | Resolves stale auth tokens. |
| 📱 MFA Verification | Re-approve push notifications or use app code in Teams sign-in. | Clears blocked MFA sessions. |
| 👤 Sign Out Everywhere | Teams: Profile > Sign out. Then teams.microsoft.com > Use another account. | Forces fresh authentication. |
If you're an admin, target Azure AD configs:
Run PowerShell diagnostics: Connect-AzureAD; Get-AzureADApplication -Filter "displayName eq 'Microsoft Teams'". Refresh manifests if needed.
If steps fail after 30 minutes:
🎉 Success stories flood forums—users report 100% resolution post-cache clear + secret refresh. You're next!
Back to crushing those meetings? Share your fix in comments below. Stay tuned for more Teams hacks! 👏
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