Ldap user authen sam account option

Hi all
our organization have some specific rule to the naming of dn
for example mine would me "cn=Something something,ou=test..." and my samaccount name would be soso@test.com
and now when i have the role mapping to authen with ldap whenever i tried to login i have to use the "Something something".
What i want to have is that the account name would be soso instead of "Something something".
From what i heard from our dc admin, he said that i need an option call samaccount to set this. Is this option available on elastic.
If not then is there is any other method to achive what i want.

Thanks you for your time.