Quick question, has anyone seen this weird error? with our WFM schedule sync flow. It times out consistently when triggered via the API during peak load.
The flow calls an external endpoint for agent availability checks. Under JMeter stress testing, we hit 429 errors before the timeout occurs.
We are using Genesys Cloud v24.1.0. The documentation mentions async mode fixes session blocking, but that breaks our real-time adherence tracking logic.
Any ideas on handling this concurrency without losing visibility for the scheduling team?
This is a classic case where the synchronous API trigger is hitting the platform’s request rate limits before the external endpoint can even respond. The 429 errors are not just noise; they are the primary cause of the subsequent timeout, as the flow engine waits for a response that never arrives due to throttling.
Instead of relying solely on async mode, which disrupts your real-time adherence logic, consider implementing a rate-limiting buffer within the flow itself. You can use a “Wait” action with a randomized delay (e.g., 100-300ms) before the external HTTP request. This smooths out the burst traffic from JMeter, preventing the 429s. Additionally, ensure your HTTP action is configured to handle 429s gracefully by implementing a retry loop with exponential backoff.
Here is a sample configuration for the HTTP action:
Also, verify that your external endpoint is not also rate-limiting Genesys Cloud’s outbound IPs. If it is, you may need to increase the concurrency limit on your side or use a proxy to distribute the load. This approach maintains real-time processing while respecting API limits, avoiding the need for full async conversion.