You can invite both interviewers and candidates when creating an interview event.
To invite any interviewers:
1. Input the interviewer’s email/name in the “Guest field”
Note: if the interviewer is not yet in the system, you’ll have to invite him/her to join the system first by going to Settings > Team Directory > Invite New Member
To invite any candidates, there are two ways:
1. Expand the designated time slot and input the candidate’s email in the “Email” field
2. After you’ve published the interview event, send the candidate the “Candidate self-schedule” and invite them to select suitable time slots.