How can I see who has made the changes to my boss's Calendar?

[Judebath]

I have access to my boss's Calendar but his and his PA and I all make changes
to it. Sometimes I have to be able to prove that I didn't (or did!) make a
particular change, and I can't. Is there a way to track who has made a
particular entry in the Calendar?

 

[Brian Tillman]

I have access to my boss's Calendar but his and his PA and I all make
changes to it. Sometimes I have to be able to prove that I didn't
(or did!) make a particular change, and I can't. Is there a way to
track who has made a particular entry in the Calendar?

Outlook doesn't track that, but perhaps Exchange can. You'd have to ask in
an Exchange group, however. microsoft.public.exchange.admin