Google Calendar - Allowing Invitation Notifications
Accounts are not automatically set to allow invitations sent via Google Calendar when someone is creating a meeting and inviting guests. Because this is the best way currently to know a meeting has been put on one's calendar, all GPS Alliance staff should configure their Google Calendar settings to allow incoming calendar invitations.
First, open your calendar and choose "Calendar Settings" in the upper right corner of your calendar interface under "Settings".
Next, click into the "Calendars" tab and choose the main calendar for your account. This will be your x.500 (or whatever you renamed it to be), but should be the main personal calendar associated with the account into which your are logged.
Finally, choose the "Notifications" tab and use the check boxes in the lower right to set the notifications you will receive. All four options should be checked.