Nicole:
We just upgraded to 6.4.0 from 6.3.1 yesterday!
For our PowerShell scripts that interact with OneStream, we set up a native user within OneStream Security to act as an internal service account exclusively for executing automated tasks. I intend to use this account once we transition one of our PowerShell scripts to Task Scheduler for running automated consolidations during our business planning season. We’ll still have PowerShell scripts for instances where there are dependencies or actions required outside of OneStream.
For your instance, OSAutomation might be an option if you know the credentials. I only use the Administrator account if for some reason I am not able to log in.