Error "*** Not authorized ... (errorCode=16)" Entering Password in Tabcmd

When using a Tableau Cloud or Tableau Server password which you know to be correct in the tabcmd utility, one of the following errors may occur:

*** Not authorized Authentication failed. (errorCode=16)

or

***Not authorized. Invalid username or password. (errorCode=16)
 

Cause

This behavior results from a limitation of the Windows Command Prompt, rather than Tableau Server or Online. The listed characters are used as operators in Windows Command Prompt and cannot be used as part of a password in tabcmd.

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This also happens when SAML is used and the user is imported via IDP. The REST API and tabcmd do not support SAML single-sign (SSO).