When you create a job on Get on Board, at least one member of your team must have email notifications activated. If this is your case, you will be able to receive messages sent by applicants directly in your inbox, which you can answer by replying to the same email.
These answers will appear in the 'Messages' tab on the applicant's card, who will also receive them in his/her email.
Remember that you can create message templates(*) within Get on Board and send bulk messages to applicants at each stage of your process, which will allow you to optimize time in your communication with candidates.
(*)Here you can access a basic kit of message templates that you can apply to your processes.