I use a batch script to refresh the extracts in Tableau Server. Am unable to use the Service account in the Script.
tabcmd login - u (service Account) gives the below error.
*** Not Authorized
Failed to find the system user. <error code = 42>
You are missing several other parameters. Please read the documentation for what you need to include: tabcmd Commands
It would help if you showed the entire command. You can use a fake URL and password, however the URL should be as close as possible to your server's URL so, for example, if you use SSL include that piece.
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