As a preface, let me call out that we use numeric UserIDs in our organization.
I am looking to embed UI5 applications in our Central Gateway server (on Launchpad) which are either hosted entirely on HANA (both UI and oData) or where the UI is hosted on the gateway server but the services are being provided by HANA. I would like to setup Single Sign On in such a way that once a user is authenticated in the gateway, he is not prompted for another logon screen when accessing content from SAP HANA.
Now from what I understand there are standard ways of establishing trust relationships and configuring SSO between NW Gateway and SAP HANA. However I believe that requires the exact same userID to exist on NW Gateway and HANA. This is not possible, as HANA does not allow numeric userIDs which is a standard in our organization.
What can I do to achieve my desired result?