Article 3.6.2S : SQL Configuration manager already installed in PC for new ElNet installation.
As mention in the subject SQL server configuration manager is already installed in a PC of new ElNet software installation.
But as I have checked on PC there is not an installed SQL server management studio (SSMS). customer is using SQL for account application only.
In this condition, there is not any issue comes we can install SQL as usual of first time SQL installation. Now SSMS will install and configure it according to the server name.
Note: During installation, the insance name should be different from existing SQL name.