Reference
Callbacks
V1 documents existing callback-style delivery. Productized webhook subscriptions are outside the current public baseline.
Product status
Productized webhooks are outside the current public baseline. Do not promise dashboard webhook subscriptions, event catalogs, retries, or signing secrets as shipped v1 behavior.
Callback-style delivery
Use callback-style patterns only for advanced integrations that already opted into them. Treat them as integration callbacks, not a public webhook product.
Current baseline
The documented path is callback-style delivery for advanced integrations. Public webhook subscription setup, event schemas, signing verification, retry policy, and sandbox testing are not part of the current public API.
Need rollout review?
Start with the Server API. Use contact only when you need rollout review, enterprise coordination, or non-standard integration help.