For flow logging, Zscaler Client Connector requires the VPN Service name to classify traffic flow into a VPN tunnel. If your VPN service doesn’t already exist in the Admin Portal, you can add it. You can view existing VPN Service names in the VPN Services for Flow Logging section.

Add VPN services in the Admin Portal as follows:

1. In the Admin Portal, go to Infrastructure > Connectors > Client > Endpoint Configuration.
2. In the VPN Services for Flow Logging field, type the VPN service name. The name can be up to 65 characters.
3. Press Enter to add another VPN service.
4. When you're finished adding VPN services, click Save.