Security Audit Error 403 on Zendesk Webhook Migration to Genesys Cloud Architect

Having some issues getting my configuration to work… I am currently migrating our security compliance webhooks from Zendesk to Genesys Cloud, but the Architect flow is rejecting the incoming payload with a 403 Forbidden error. In Zendesk, we simply used a standard HTTPS endpoint with basic auth, but Genesys Cloud’s stricter security model is causing issues. The documentation mentions that Architect flows require specific OAuth scopes or JWT validation, but I cannot find a clear example for inbound webhook security headers.

Here are the steps to reproduce the issue:

  1. Create an Architect flow with a “Trigger” node set to listen on an HTTPS endpoint.
  2. Configure the flow to capture the incoming JSON payload from Zendesk’s ticket update webhook.
  3. Send a test POST request from a Zendesk ticket update event to the Genesys Cloud URL.
  4. Observe the 403 Forbidden response in the Architect flow logs, indicating an authentication or authorization failure.

The error log shows: Authentication failed: Invalid or missing Authorization header. I have tried adding a static API key in the header, but Genesys Cloud seems to expect a more complex token structure. In Zendesk, we handled this with a simple shared secret, but the Genesys Cloud Admin Console does not seem to offer a direct equivalent for inbound webhook validation.

How do I properly secure this inbound webhook in Architect? Do I need to implement a custom JWT validation step, or is there a simpler way to allow trusted IPs? I am on Genesys Cloud v2023.10 and using the latest Architect UI. Any advice on mapping Zendesk’s simple auth to Genesys Cloud’s security model would be appreciated. I want to ensure compliance without overcomplicating the flow.