ServiceNow Data Action Timeout on SIP Trunk Registration Events

Can anyone clarify the expected latency tolerance for Genesys Cloud Data Actions when triggered by high-frequency SIP trunk registration events?

Error: 408 Request Timeout

We have a flow configured to create ServiceNow incidents via a REST API Data Action whenever a specific SIP trunk registration state changes. The integration works flawlessly for low-volume agents, but during peak hours (08:00 GMT), the Data Action node consistently fails with a 408 timeout. The ServiceNow endpoint is healthy, responding in under 200ms when tested via Postman.

The webhook payload includes the conversationId, participantId, and raw SIP headers. I suspect the Genesys Cloud platform is dropping the request before it fully serializes the payload due to the volume of concurrent registration events. Increasing the timeout to 60s in the Data Action settings did not resolve the issue.

Is there a known limit on concurrent Data Action executions per flow, or should we be batching these events using a different mechanism? The logs show the request leaving GC but no 200 OK returning from ServiceNow, suggesting the drop happens on the GC side.

The root cause here is the synchronous nature of the Data Action blocking the SIP signaling thread during peak registration bursts. When managing 15 BYOC trunks, the volume of state change events can easily saturate the outbound connection pool if the downstream ServiceNow endpoint exceeds the default 30-second timeout window. The system waits for the HTTP 200 OK response before processing the next event, causing a cascade failure.

Error: 408 Request Timeout
Message: Data Action execution exceeded maximum allowed duration.
Context: SIP_TRUNK_REGISTRATION_EVENT

To mitigate this, switch the Data Action configuration to asynchronous mode. This decouples the SIP event processing from the ServiceNow API call. Additionally, increase the timeout threshold in the Data Action settings to 60 seconds to accommodate regional latency differences, especially for APAC carriers. Ensure the ServiceNow integration uses batching if possible, or implement a retry mechanism with exponential backoff in the flow logic to prevent immediate re-triggering of the same event.

You need to decouple the synchronous REST call from the signaling path. Processing SIP events sequentially blocks the thread. Switch to an asynchronous webhook pattern or queue the requests. Here is the corrected payload structure for the webhook listener:

{
 "event": "sip_registration_change",
 "async": true,
 "payload": {}
}