The Full Name within the User attributes section of the Business Rule in VBS is not working as expe.

Hello,

We have a requirement of defaulting user full name for one of the fields when user checks the checkbox. Created a business rule in VBS for Document of Records. Used "{{ $user.fullName }}" attribute as a default value for one of the fields.

Example: My Full Name is : Hemanth Kumar Narra

First Name: Hemanth
Middle Name: Kumar
Last Name: Narra

Preferred First Name: Hemu
Preferred Last Name: Narra

Now, the expectation is that this attribute displays the full name which in my case Hemanth Kumar Narra. Instead it is displaying my display name it seems as Hemu Narra. How to achieve this type of requirement.