Who can do this: anyone who can see the list.
Know when a client opens your list and which candidates they looked at, so you can follow up at the right time.
On the candidate
Each candidate shows Viewed [n] times and You have [n] messages. Candidates with client activity move to the top of your view, with a row per client: Contact, Company, Status and Last message.
In the Activity tab
Open the list and click Activity. The feed shows:
"[Contact] viewed your list", with when and how often
"[Contact] viewed your candidate [name]", with the time they spent on it
when the list was shared, and with whom
candidates added and status changes
By email
When a client opens your list, you get an email: "[Contact] just visited your list". You get at most one per client per hour.
Good to know
Interview requests, declines and messages show on the candidate and in Messages, not in Activity.
Scheduled email notifications at the top of Activity shows emails scheduled to go out to clients.