Both the email addresses are mandarory for communication purposes.
The source file - Excel file is loaded with the email@example.com for this user.
Currently I am using the dynamic RLS by using the userprincipalname() function.
Now in the power bi service when I am adding the user email to the RLS, it is taking the firstname.lastname@example.org for this user, And also for granting the access levels the power bi service is also taking the email@example.com for this user.
I need help in figuring what needs to be done either in the power bi service or Microsoft 365 admin portal, so that the power bi service will take the firstname.lastname@example.org instead of email@example.com while adding this user email to the rls and also giving the access level in the power bi service.