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The service runs each minute.
Conditional rule set up
The condition returns true if the issue workflow status changed during the last 3 minutes.
Approval Emails Automation set up on the Approval Mapping
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If all the conditions above return true the app sent a new email.
How it works
The following example shows how the applied settings cause.
Ticket moved in the status Pending Approval on 21/Nov/19 6:58 PM
The first notification is sent on 7:01 PM.
The app doesn't notify until the conditional rule returns the issue.
The app sent the notification every 2 minutes.
Notification are not sent until the current time – the latest notification time is >=2min.