ZPA without ZIA

Hello Team,

Please advise if its possible to enable ZPA only without ZIA?

This for the existing ZPA tenants to which the ZIA needs to be removed and this requirement for a new setup which doesn’t need ZIA both.

As per my understanding ZCC works with client connector portal and CCP uses ZIA user DB in the backend for authentication.

If we try to authenticate with IDP which is in ZPA will that work?