Hello I try to update an existing contact item using the UpdateItem command of the Exchange Web Services (EWS). The operation returns success, but the changes do not reflect in my Outlook contacts folder, no matter what I do. Though when I create a _new_ contact, it is visible immediately. The strange thing about this is, when I retrieve the existing contacts using EWS, I can see that my update was really successful and the specified fields were updated. So _updating_ items causes the exchange server to store the correct values but does not sync them to the clients unlike _creating_ items does. Any ideas? I am using a EWS Proxy class for .NET Thanks for any hints..
