There are a few half ways around it for example with setting up SSO, but that will only support domain joined machines. The other way is to configure LDAP to use a custom login attribute label, set to userprinciplename. LDAP on the other hand, only supports a very limited number of supported attributes. I´ve tried to customize the db for more attributes but I believe it´s hard coded in the application what to import.

Samaccountname is also hard coded in the sdp app. Wouldn´t it be a really simple thing to just let an admin choose which attribute label to use for logon and import?

Cheers / T