Add a note to your external talents' profile to make sure your team members are aware of any additional, helpful details. (For example, your talent will be on vacation for two weeks so any emails will receive a delayed response).
Notes are only visible by internal team members - talent will never see any notes in their profile.
Simply click on the notes field, enter your message and click save. Once the note is no longer needed (ie. the talent returns from vacation), you can remove the note.