Zscaler CASB should include integrations with other SaaS applications.

Zscaler CASB needs to improve its applications or connectors. The solution's granularity should be improved because it has limited granular options to control, visible, allow, block, delay, and receive.

The solution needs to offer better scalability.

The product needs SAML integration. That's something they should work to add in future releases.

It needs to offer SSO, single sign-on, and items of that nature.

The product needs greater zero-trust. They need to focus more on zero-trust relationships.

Zscaler CASB breaks down at times. 

The pre-defined dictionaries could be improved. 

Zscaler CASB need to improve the functioning of the application, especially the sanctioning of the application.

Another area of improvement is the granular level control of how you can assign policies based on user access. Currently, their granularity is not that good. They either give you access to CloudApp or not. User management can be improved.