it would be great to be able to change the username once it was set. In addition, it would be good to be able to use the SAP Passport for log in to the new SDN.
we won't support username changes at this point because of unclear complexity. SAP Passport (browser cert) is supported as part of SSO via SAP Cloud ID.
so if I want to change my username I have to create a new profile? That's leading to duplicates in the system.
Can you please tell me how I can log in using the SAP Cloud ID?
"so if I want to change my username I have to create a new profile?" - at this point yes.
SAP Cloud ID is our default identity provider for all SAP.com sites. or do you mean this tool here?
Customer support service by UserEcho