Rishi,
I am following that documentation.
1. SSL server PSE node. 2. For each unique SSL server PSE (each server-specific PSE or a single system-wide PSE): 1. Select the application server.The application server's certificate appears in the PSE maintenance section in the Owner field. Step 2.1: When I select the application server the server's certificate does not appears in the PSE maintenance section. The entire display is blank. So, therefore I cannot do the next step:
2. In the PSE maintenance section, choose 
(Create Certificate Request).A dialog appears showing the certificate request.
Clicking on "Create Certificate Request" doesn't do anything. The button seems to have no effect. Probably because there is something missing.
Devpriy,
It was not set, but setting it did not make a difference for this specific issue.