Regarding Email Communication Link Notes in EhP6

Hi All,

I would like to add Notes field into the EMAIL tray in EhP6. I have extended the Data Model BP for the Entity type AD_EMAIL with the notes field. When I am trying to extend the Target structure it is displaying a message the structure cannot be Enhanced. So please let me know the procedure how can I add the Email Notes field to the UI.

Thanks in Advance.

Regards,

M.Ramana Murthy.