Errors / webhook_target_blocked

webhook_target_blocked

HTTP 422 · Do not retry unchanged — fix the request first

The webhook URL resolves to a private or reserved address.

What happened

The address points into a private network, a loopback address or a cloud metadata endpoint. Delivering there would let one customer reach systems that are not theirs.

How to fix it

• Use a publicly reachable https address.
• For local development, put a tunnel with a public https address in front of your server.

Retrying

Repeating the request unchanged will fail again. Correct the request first — the response tells you which part is wrong.

All error codes: /developers/errors · Machine-readable: llms-full.txt