Because Outlook has a feature, enabled by default, to automatically accept meeting requests with a status of tentative.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"David French" wrote in message ...
I have observed my Outlook calendaring system place an event on a calendar
prior to the event actually being accepted.
Currently I do NOT have these profiles automatically accept/reject requests
for reasons too numerous to mention.

My question is WHY the event shows up on the calendar BEFORE it has been
accepted?

Dave French