I believe using tabcmd is the best way to go. More info at http://onlinehelp.tableau.com/current/server/en-us/help.htm#tabcmd_cmd.htm.

Best,

John

Hi

Do you need to assign roles to the users? if so you can use the tableau cmd to assign the users while uploading from CSV.

http://onlinehelp.tableau.com/current/server/en-us/help.htm#csvguidelines.htm

Regards

Shankar