Fix AADSTS50027 InvalidJwtToken Error: Step-by-Step Guide
You get AADSTS50027 when Azure AD rejects a JWT token because it's malformed, has the wrong audience, expired, or fails signature validation. This typically happens during app authentication
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Azure Active Directory and Entra ID management
Fix Outlook AADSTS50053 Account Locked Out
Outlook or Teams shows error AADSTS50053 with message "Your account is locked" or "Sign-in blocked." Azure AD Smart Lockout has temporarily locked the account after too
Fix AADSTS50144: InvalidPasswordExpiredOnPremPassword
When a user gets AADSTS50144: InvalidPasswordExpiredOnPremPassword in a hybrid identity setup, it means their on-premises Active Directory password has expired. Azure Entra ID (formerly Azure AD) cannot authenticate with the
Fix AADSTS50064 CredentialAuthenticationError in Entra ID
When signing in to a Microsoft 365 application or Azure service, error AADSTS50064 with the message "CredentialAuthenticationError - The credential used to authenticate with the authentication scheme 'X509Certificate&
Fix AttributeValueMustBeUnique Sync Error in Entra ID
Microsoft Entra Connect sync fails with AttributeValueMustBeUnique error when two or more objects in your on-premises Active Directory share a unique attribute like userPrincipalName or proxyAddresses. The sync error log
Fix Outlook AADSTS50076 MFA Required Error
Outlook or Teams shows error AADSTS50076 with message "Due to a configuration change made by your administrator, you must use multi-factor authentication." An MFA policy (Security Defaults, per-user
Fix Conditional Access Blocking Users Error AADSTS53003
Users signing in to Microsoft 365 or Azure services may see "Your sign-in was successful but does not meet the criteria to access this resource" or error code
Fix AADSTS50034 Error: User Account Does Not Exist
When a user tries to sign into an Azure-connected application, they get the error: "AADSTS50034: The user account does not exist in the directory. To sign into this application,