I am on Exchange 2010 Sp2, Using a Galaxy S3 and connecting with ActiveSync. 

The issue I have is when I put an appointment in my Calendar using the Galaxy S3, the Appointment seems to be more of a meeting request where it puts my name and is like a Meeting request... i.e. has the options of "Accept, Tenative, Decline".  If then I go to Outlook and move the meeting it says that the meeting was not created by me and if I want to notify the attendees.

Now if I setup the appointment Using Outlook, it synchronizes and it does not have that issue.

Can you tell me what to troubleshoot?

THanks,

Mario