Can a ZPA have ZDX without having ZIA

The ZDX is tied up with ZIA product. In order for the ZDX to work ZIA SSO has to be setup.

Basically, if a client subscribed to ZPA business it includes ZDX standard. So how does it will work if client is not subscribed to ZIA.

The deployment team need to raise to Zscaler SE that Zscaler has to provision a ZIA dummy account