Send a test event to a subscription so you can check your endpoint receives it and your signature check passes. Use this right after creating a subscription, and after any change to your receiving code. The subscription must be active. A webhook.test event is delivered through the same path as real ones, signed with the subscription's secret; check See recent deliveries for the result, within about a minute.

Prerequisites: a Partner bearer token and the subscription's id (from List your webhooks).

Authentication: Partner token. Only partner users can call it; other tokens get 403. Only your own partner's subscriptions: any other id gets 404.

Rate limit: 60 requests per minute, counted per user (the token’s user).