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For the Add Note, Acknowledge, and Close actions, Jira Service Management sends a notification only if the responder is aware of the alert. This means, either responder has already been notified about the alert, or they have seen the alert.
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Contact methods to activate
Jira Service Management can send notifications only if you activate a contact method for a matching notification rule. If there is no matching notification rule or if no contact method is activated for the matching notification rule, then Jira Service Management won’t send a notification.
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Alert notifications to send
Jira Service Management sends alert notifications to one or more responders according to the contact method selected by each user.
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