Map drive by username variable in Group Policy

Variable is the username they log in as.  The mapped drive would be \\servername\username$

I tried the attached in GPP but it doesn't work.
usernamemapdrive.JPG

Also, how do you map based on group membership?  Like if in group HR, map \\servername\hr$?

groups are easy, goto common tab and item level targeting

you can do username there too, but I doubt you want a policy for each user.

also make your your user drive is running in their security context

You either create a GPO per mapped drive using the security filtering I.e GPO map drive A security filter members of groupa
GPO groupB shared drive security filter groupB

The other is to use a single logins vbscript/powershell script that has drive mapping a which includes verification of group membership as a condition.  There are examples of vbscript said, powershell and batch scripts tart conditionally map drives.

The script would either obe part of the GPO or the login script under the user's AD profile using netlogon  script.

are you mapping drive letters.

C:
D: DVD
E: he
F: management
Etc?