Manipulating shown username on SSO login page?

Hello community,

is there a way to manipulate the shown username on the privacy idea login page?

We first login to Netscaler with UID “56b*****” and use SAML for SSO to PrivacyIDEA.
At the SOO login page we get the hint that the user “56b****” has been authenticated by webserver…

For special usergroups it is necessary that the FullName (or any other LDAP value) is shown at the SSO LoginPage

Is there a way to manipulate the login page to see another LDAP value than the UID (e.g. FullName, mail address,…)?
Or is it the only way to change the loginname attribute in the according resolver?

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No, this is not configurable.

You could however take a look at the customization and try to customize the login page.
https://privacyidea.readthedocs.io/en/latest/faq/customization.html

This would be the template: