As a Dell Partner.... So yes it is possible that you dont find a STAG on the dell public site.
I was shopping for a used rack server online and found an R420 at an attractive price. The seller has listed the Service Tag. I wanted to look up the configuration (or at least what it was when it left the factory) but when I try to look up the service tag, the warranty checker says the service tag doesn't exist. Is this suspicious at all? Or is it normal for some servers to not be in Dell's system?
Service Tag for used R420 doesn't exist; suspicious or not?