PivotCX advocates replying immediately after applicants respond to your messages for the most effective outreach. To make follow-up easier, you can turn on notifications for inbound messages. 

This setting is typically recommended for users with a smaller conversation volume.

Only check the "Only Assigned" box if your team uses the Assignment feature. Selecting this will notify a user if a conversation has been assigned to him instead of receiving alerts for all the conversations in your team.