Hi all, I am successfully able to set the property of free busy data to etither Transparent(Invisible my free busy data to all) and Opaqure(Visible my free busy data to all). But still the information is not getting updated to Exchange. when i use OWA then still it shows the free/busy data even after setting the property to Transparent. Has any one played with this issue..? All reply will be appriciated.. thnx ~Neeraj Sidhaye try_catch_finally@yahoo.com