To implement escalation for human tasks, you can implement it from the Duration Deadline section in the human task definition. By default, escalation is based on the management chain hierarchy, and the task gets escalated up in the hierarchy from the user to his/her manager, and so on. You can control the level to which the task can be escalated and also use a title to which the task gets escalated. The level and title assignment can be configured while configuring the human task definition's Duration Deadline. Oracle BPM offers you varied ways to escalate:
Role-based escalation
Level-and-title-based escalation
Custom escalation
The following table highlights facts around the Escalation, Expiry, And Renewal Features: