Architect API 429 during IVR load test on US1

Architect & Flows
1

429 Too Many Requests: Rate limit exceeded.

Testing Architect flow updates via JMeter 5.6 on Genesys Cloud US1. The goal is to validate API throughput for dynamic IVR changes under load.

  1. JMeter runs 20 concurrent threads.
  2. Target endpoint is /api/v2/architect/flows.
  3. Immediate 429 error on every request.

Is this the standard rate limit for architect updates? Need to know the safe concurrent threshold for config changes.