Just noticed that the WFM Data API returns 429 Too Many Requests when scaling concurrent sessions beyond 15 threads in JMeter 5.6. The load test targets the Genesys Cloud US1 environment. The script is designed to simulate a high-throughput scenario where multiple external systems pull agent roster data simultaneously during peak shift changes.
The specific endpoint causing the issue is /api/v2/wfm/data/schedulings/rosters. The error response includes the header X-RateLimit-Remaining: 0 and Retry-After: 60. This happens consistently when the request rate exceeds 1 request per second per thread, which seems very low for a production environment handling thousands of agents. I have configured the JMeter test plan with a constant throughput timer to ensure steady pressure, but the 429 errors start appearing almost immediately after the ramp-up phase completes.
The environment details are as follows:
- Genesys Cloud US1 region
- JMeter version 5.6.1 running on local Windows 11 machine
- Authentication via OAuth2 client credentials flow
- No custom rate limit configurations found in the admin portal for this specific API group
I am trying to understand if this is a hard limit for the WFM Data API or if there is a specific configuration needed to increase the throughput allowance. The documentation mentions general rate limits but does not specify exact values for roster retrieval endpoints. Given that our system needs to sync roster data every 5 minutes for all active agents, hitting this limit with only 15 concurrent threads is a significant bottleneck.
Has anyone successfully tested higher concurrency for WFM roster APIs? Are there recommended patterns or headers to include to avoid these rate limits? I want to ensure our integration can handle the expected load without failing during critical shift transitions.