HTTP 403
insufficient_scopeInsufficient API key scope
The API key does not grant the scope required by this endpoint.
Resolution
Create a key with the required scope. Watches require watches:read and watches:write.
Response handling
Keep the response's request_id for diagnostics. Retry only transient rate limits and 503 responses, respecting Retry-After with bounded exponential backoff and jitter. For monthly_quota_exceeded, stop polling until RateLimit-Reset or upgrade. Correct 400, 401, 403, and 406 requests before retrying.