Article ID: 884983 - View products that this article applies to.
When you open a new meeting invitation, you may receive a message that is similar to the following:
Additionally, when you view your calendar, there are multiple events for the same meeting.
As a result, you cannot respond to the invitation, and the meeting organizer does not know if you will attend the meeting.
This behavior can occur if the following conditions are true:
To work around this issue, contact the meeting organizer to let them know if you will attend the meeting.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.