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Workflow Task Events

Summary​

Task events cover creation, approval and rejection. No event exists for delegation, reassignment, skipped stages or task cancellation.

Creation​

Opening a stage creates one task and queues one task-created event per step. Same-order tasks therefore generate multiple events in aggregate iteration order.

Approval​

Each successful Pending-to-Approved transition queues one task-approved event, whether or not it completes the stage.

Rejection​

The rejected task queues one task-rejected event followed by the instance-level rejected event.

Payload boundary​

Task events carry assignment or decision context appropriate to their transition; the completed instance event does not list task details.

Requires Confirmation​

Delegation/reassignment notification needs, sibling-task state events and skipped-stage visibility require confirmation.

Source References​

  • microservices/src/workflow-service/Domain/Workflow/WorkflowInstance.cs
  • microservices/src/workflow-service/Domain/Workflow/WorkflowDomainEvents.cs
  • microservices/src/workflow-service/Messaging/WorkflowIntegrationEvents.cs

See Also​

Keywords​

Workflow events, integration contracts, transactional outbox.

Revision Information​

  • Status: Draft
  • Last reviewed: 2026-07-20
  • Next review: 2026-10-20