US Patent 11915178 Cascading notification system

The inventive subject matter herein is directed toward improved scheduling and planning system that detects a problematic event in a workflow. When the event is detected, the system automatically notifies a set of contacts from a hierarchical contact list. The system then automatically notifies other sets of contacts depending upon the response from the first set of contacts. A cascade of different types of notifications could be triggered from a single detected event as each contact responds and provides information that could be used to trigger additional notifications.