When we enable Jira Service Desk users to use SSO, even when "Anyone can email the service desk or raise a request in the portal" is selected, the users have to be created previously, or they will not be able to raise requests.

The ask here is that when:

• Users try to log in using SSO
  AND
• The option for who can raise requests is "Anyone can email the service desk or raise a request in the portal"

Then the users should be created automatically when authenticated as Service Desk customers by the Customer Portal (pretty much like the sign up screen does, but with SSO)