KNOWLEDGE BASE

Error "Unable to sign in" After Configuring Tableau Server for Azure Active Directory SSO


Published: 12 Jul 2018
Last Modified Date: 16 Mar 2020

Issue

After configuring Tableau Server to use Azure Active Directory (AD) single-sign on, the following error occurs:
"Unable to Sign In
 Invalid username or password"

Environment

  • Tableau Server 
  • Active Directory authentication
  • SAML SSO with Azure Active Directory as IdP

Resolution

Work with your database administrator to ensure that Azure Active Directory is passing the sAMAccountName in its "username" attribute inside the SAML assertion by choosing the user.onpremisessamaccountname attribute in Azure Active Directory.

Cause

Tableau Server requires the sAMAcoountName attribute to authenticate users in on-premises Active Directory. 
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