WFM API 429s during load test on US1

Is it possible to bypass rate limits for /api/v2/wfm/schedules during high-concurrency tests? JMeter hits 100 threads and gets blocked immediately.

429 Too Many Requests: Rate limit exceeded for tenant.

Using US1 environment. Need to validate capacity for shift planning imports. Current retry logic fails fast. Any workaround or specific header required?