Wildcard certificate import in Web Dispatcher generated outside option "Create CA request"

Hi Experts,

Can we import " *.ourdomainexample.com" certificate with Intermediate and Root issued by our IT department directly to SAPSSLS.pse of our SAP Web Dispatcher to renew the expiring SAP Web Dispatcher server certificate or it is mandatory to create the Server certificate request via "Create CA request" option of PSE Administration UI - https://webdispatcherhost:port/sap/wdisp/admin

and get it signed by CA and then import it to said pse with Root and Intermediate certificates. I understand that latter is the standard process but is the first option a possible one. Will it damage the SAPSSLS.pse if imported directly and stop the SSL incoming connections. Please share the best option.