Personal / Personnel
Different meaningsPersonal relates to an individual or private matter; personnel means employees or staff collectively.
Personal
Use when
You mean private, individual or relating to a particular person.
Example
“Do not store personal information in the shared folder.”
Personnel
Use when
You mean the people employed by an organisation or assigned to a function.
Example
“Authorised personnel may enter the control room.”
Quick check
authorised personal, personnel information, a personnel
Usage note