Emit Event

Publishes a new event into OneHazel's event stream. Any other workflow whose Event Trigger matches the emitted eventType will fire when this runs.

When to use

• You want one workflow to trigger another without coupling them directly.
• You want to fan-out a single inbound event into multiple downstream workflows (one Event Trigger per consumer).
• Emitting custom business events for analytics or audit.

Configuration

Field	Required	What it does
eventType	Yes	The event type string downstream triggers will match on.
payload	No	JSON object carrying the event data. Supports {{...}} refs.

What it outputs

{
  eventId: "evt_...",
  eventType: "...",
  emitted: true
}

The emitted event is also persisted in the events table and is visible in the admin event viewer for auditing.

Gotchas

• Emitted events are processed by the workflow engine asynchronously. Downstream workflows may fire within a few seconds, not synchronously with this node's completion. If you need synchronous behaviour, have this workflow do the work directly.
• No dedup: emitting the same eventType + payload twice fires downstream workflows twice. If you need exactly-once semantics, add an idempotency key to the payload and check it in the downstream workflow.