WFM API 429 errors during JMeter load test

Can anyone clarify the rate limits for Workforce Management APIs in Genesys Cloud US1?

Running JMeter 5.6 with 100 concurrent users against GET /api/v2/wfm/schedules. The endpoint returns HTTP 429 Too Many Requests almost immediately.

Standard documentation mentions global limits but lacks specific WFM throughput details. This blocks our capacity planning tests.

Is there a documented ceiling for this endpoint that we are missing?