Looking for advice on why our BYOC edge connector keeps rejecting traffic during the Zendesk-to-GC migration. We are trying to route digital interactions from Zendesk via a custom webhook, but the edge returns a 403 Forbidden.
Environment:
{'error': 'unauthorized_client', 'message': 'Invalid certificate chain'}In Zendesk, webhooks just needed a token. Is GC stricter on TLS certs here?
The docs actually state the edge validates the full certificate chain. Ensure SSL_CERT_FILE points to the correct bundle in your Flask config. Missing intermediate certificates trigger 403s. Check your load test logs for handshake failures before the app logic runs.
It depends, but generally… the 403 is rarely just about the cert chain if the handshake succeeds. The edge often rejects requests when the X-Genesys-User header is missing or malformed, even if TLS passes. Also, check if your webhook is hitting the public API endpoint instead of the edge-specific ingress. The edge expects specific routing keys.
Try adding explicit logging for the request headers before they hit the edge. If the cert is valid, the issue is likely auth context. Ensure your Flask app attaches the correct OAuth token in the Authorization header, not just as a query param. The edge validates this strictly.
X-Genesys-User header format