25.1.9.1.11 Reacting to Task Change Events

Use task actions to react to lifecycle events while a workflow waits.

Each Human Task - Create activity in a workflow creates a task instance, then waits for that task instance to complete its lifecycle before continuing to the next activity in the flow. Define task actions to react to changes in the task instance's state during a task's lifecycle.

• Choosing Event for an Action
  Choose the task event that should trigger an email, push notification, or code action.
• Accessing Task Information
  Reference task source columns and built-in substitutions from task actions.
• Notifying Assignees on Create
  Email potential owners when a new task requires their attention.
• Updating Columns on Completion
  A common requirement is to react to the outcome of an approval task by updating one or more columns in associated business entity row. You do this with an action on the Complete event.