On-Demand notification template that has not been manually deleted and shows in Send notification Advanced Workflow node, no longer appears in On-Demand Notification Templates admin page. Image description
Although selected in the Send Notification Advanced Workflow node, the notification is not sent.
Ensure that the notification exists (not deleted) in the database by running the following query:
SELECT * FROM tblNotificationTemplate WHERE template_name like '%NAME%'
Note: Replace NAME by your template's name.
The notification check box in the application builder has been unchecked.
Ensure to check the Notification check box in Application Builder > Application Name > General Tab > Options section