In some cases CPUU is not able to update profile. Log will contain following error:
[Error] Cannot update the 'Delivery Store EntryID' and 'Delivery Folder EntryID' properties.
This happens because in some cases Outlook stores 'Delivery Store EntryID' and 'Delivery Folder EntryID' in invalid format and this cannot be handled in a documented way.
Currently only Outlook 2010 has this problem.