On the wire
Ships with HTTP status 403, carrying "code": "RU-2004" in the response body alongside the human-readable error message. Existing fields are never replaced by the code: it is additive.
Common causes
- The account is at its plan's monitor allowance.
- Automation recreating monitors instead of reusing existing ones.
How to fix it
- Delete monitors you no longer need, or upgrade your plan for a larger allowance.
- Check for duplicate monitors created by automation before adding capacity.
Related codes
- RU-1003: API access requires a paid plan
Still stuck?
Ask support and mention RU-2004: the code pins down the exact refusal path, so you skip the diagnostic back-and-forth.