On the wire
Ships with HTTP status 429, carrying "code": "RU-4016" in the response body alongside the human-readable error message. Existing fields are never replaced by the code: it is additive.
Common causes
- A deploy platform retrying a webhook delivery aggressively after a transient failure.
How to fix it
- Honor Retry-After.
- Check the connector's audit log for repeated deliveries of the same deployment.
Related codes
- RU-4013: Inbound release webhook token not recognized
Still stuck?
Ask support and mention RU-4016: the code pins down the exact refusal path, so you skip the diagnostic back-and-forth.