I have around 140 Clients connected..
Eg: My laptop name is "fraz-laptop" and I usually have 3 profiles on my laptop one on Domain and 2 locally on the laptop.
So SEPM has created different seats for diffrerent profiles.
for the Domain User I have User name as RogerD SEPM has one seat as RogerD
then locally have User as Fraz Fernadez SEPM have anothe seat as Fraz Fernandez.