Question: When should push notifications be functional?
When you are set as a reporter, assignee or watcher upon creating a Jira issue.
Kindly contact your Jira admin to have this set automatically for you to appear as one of the aforementioned roles once a request is created.Notifications are also inherited from the Jira email notifications scheme.
Please contact your Jira admin to update the notification scheme, so you'll receive an email upon creation.