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Error "Unable to Sign In" With SAML SSO When IDP-Side Username Contains Non-English Characters

Julkaisupäivä: Apr 29, 2025
Kuvaus

When Tableau Server has been configured for SAML authentication and the username in SAML response contains non-English characters, users cannot sign in to Tableau Server.

The following SAML errors are logged in \vizportal\vizportal-<n>.log

ERROR com.tableausoftware.samlauthentication.model.XPathUtils - Failed to evaluate XPATH in the provided input

org.xml.sax.SAXParseException: Invalid byte 1 of 1-byte UTF-8 sequence.

or
org.xml.sax.SAXParseException: Invalid byte 2 of 3-byte UTF-8 sequence.

Cause

This is a known issue that is fixed in more recent version of Tableau Server.
Ratkaisu

Option 1

Upgrade to latest Tableau Server.

Option 2

Change the user name to English when adding a user on the IDP-side.

 

Knowledge-artikkelin numero

001471815

 
Ladataan
Salesforce Help | Article