Having some issues getting my configuration to work… for the outbound dialing integration. We are migrating from Zendesk to Genesys Cloud and trying to trigger a webchat callback from a Zendesk ticket update via an Architect flow. The flow initiates an outbound call, but the subsequent webhook to close the Zendesk ticket fails with a 403 Forbidden error.
In Zendesk, we used simple macros to handle status updates, which were incredibly straightforward. Genesys Cloud requires this complex data action setup, and I suspect the issue lies in how the authentication token is passed. The payload structure matches the Zendesk API docs, yet the request is rejected.
Is there a specific header requirement for BYOC environments that differs from standard public cloud setups? The error logs show the request reaches Zendesk but is denied. This is critical for our migration timeline, as we need bidirectional sync. I have verified the API key permissions in Zendesk, and they are set to full admin. Any insights on GC outbound webhook auth handling would be appreciated.
If I remember correctly, this 403 error is rarely about the outbound call logic itself. It is almost always a permissions mismatch in the Zendesk Admin Console or a misconfigured OAuth token in the Genesys Cloud integration settings. Since you are migrating from a macro-based system, you might be assuming the webhook just needs a valid URL. It does not. The request needs specific scope permissions.
First, verify the API token or OAuth app in Zendesk. The token must have write access for Tickets. If you are using basic auth, ensure the email address has admin rights for the specific view being updated. In Genesys, check the HTTP Client configuration. The header Authorization must be correctly formatted. For Basic Auth, it should be Basic <base64_encoded_credentials>. For API Token, it is often Bearer <token> or a custom header like X-Zendesk-Token.
Also, check the payload structure. Zendesk is strict about JSON formatting. If you are sending a status field, ensure it matches the allowed values (pending, open, solved, etc.). A malformed payload can sometimes trigger a 403 if the server rejects the content type before validating the auth.
Here is a standard header configuration for the HTTP Client in Architect:
{
"Authorization": "Basic aWY6bXl0b2tlbg==",
"Content-Type": "application/json"
}
And a minimal payload example:
{
"ticket": {
"id": "{{ticket_id}}",
"status": "solved",
"comment": {
"body": "Call completed via Genesys Cloud",
"public": false
}
}
}
If the error persists, enable debug logging in Genesys Cloud to see the exact response headers from Zendesk. This usually reveals if it is a scope issue or an IP whitelist restriction.
- Zendesk API scope permissions
- Genesys Cloud HTTP Client header configuration
- Basic vs Bearer token encoding
- JSON payload validation for ticket updates
- IP whitelisting in Zendesk Admin