Accept, decline, or tentatively accept a meeting while the meeting is in the Inbox so the organizer knows that the meeting time will work for everyone.
Decline a meeting before deleting it.
How to accept a meeting:
Click on the Inbox folder.
Select the meeting request by clicking on it.
Choose Accept, Tentative, or Decline.
Choose to either edit your response before sending it, or send the response now.
For example: I may Accept a meeting but edit my response to say that I will be 15 minutes late before I send my accepted response.
After accepting or declining a meeting, it can be found in the Sent items folder.