If SSO is configured, then you can use it.
/sso
Instructs Blue Prism to authenticate the command based on the current user's credentials in a Single Sign-on (SSO) configuration. If your database is not configured for Single Sign-on, then you should use the /user switch instead.
For example, when using the /run switch, instead of specifying
Automate.exe /run Process1 /user admin pwd
you would specify
Automate.exe /run Process1 /sso