You should know that openSUSE and the version you may be running is very different than the paid version which is SUSE.
You’ll need to identify exactly what you are running, if you downloaded the install source very recently it’s likely olpenSUSE LEAP 15.1 or Tumbleweed.
You should also identify where you pgagent package comes from.
Is it from the default repositories that are set up in a basic install?
Or, did your rpm package come from elseewhere?
As a new User,
You might be interested in a few things a beginner will want to know…
The slide deck for presentations I do on openSUSE, it describes the installation and first things you’ll want to do after an installation,
A Wiki page I created for finding missing files and software, it’ll give you a bit of an idea the many possible sources for packages that can be installed on openSUSE. In your case though, it sounds like you don’t have missing dependencies, you have a more basic problem getting the package installed and invoked.