Group Policy to add network location

My client is having problem with Outlook dropout with PST files

PST are located on users home drive mapped as normal group policy

So H = \\server\share\%username%

PST listed as H:\Exchange\file.pst

This breaks outlook

f you setup a manual Add Network Location (windows 10) to \\server\share\%username%\Exchange and then reattach PST it shows as \\server\share\username\Exchange\file.pst rather that H:\Exchange\file.pst

Outlook now works fine

Regardless of the whys its easier to just try to have a GPO to replicate what Add network location does - can I do this ??

Ian Burnell, London (UK)