On Schedueler use notification section.
You may use mobile phone with service provider email can get text messages.
Hi, this feature is not available yet (to get a notification for long-running jobs in IICS). As you've mentioned in the reply, notification is there for success, warning, and failure for a task run.
I dont think there would be any alert such, software doesnot know which one is running long unless you specify with code.
It's individual judge based on start and completion of task.