Re: Manually create user in power bi account

You can create users in Azure AD with PowerShell:

https://www.petri.com/create-azure-active-directory-users-using-powershell

http://www.virtualizationadmin.com/articles-tutorials/cloud-computing/microsoft/managing-your-microsoft-azure-active-directory-instance.html

https://www.petri.com/use-powershell-create-assign-licenses-office-365-users

The last one includes assigning a license as I expect you would need to create the user account and then assign a Power BI license to it.