QMS API 429 during JMeter ramp-up for bulk evaluation creation

Stuck on rate limiting for Quality Management. Running JMeter 5.6.2 from Singapore. Targeting /api/v2/quality/evaluations. Simulating 100 concurrent requests. Hitting 429 immediately. What is the correct way to handle rate limits for evaluation creation?

{
 "id": "eval-123",
 "scorecardId": "sc-456",
 "interactionId": "int-789",
 "status": "completed"
}