Send a test event

Queues a test event to your configured webhook so you can verify your wiring before real traffic arrives. **It is a real delivery.** Signed with your secret, carrying your custom headers, and retried on the same schedule as any other event — so it exercises signature verification and your firewall rules, not just reachability. Its `data` carries `"test": true` so your handler can discard it rather than creating a conversation from it. Takes no body. Poll [`GET /v1/webhooks/deliveries`](/api-reference/webhooks/list-webhook-deliveries) with the returned `delivery_id` to see what your endpoint answered.