The company I work for is traying to decide if we are going to get Zoho.

To do so, we need to know how the integration between those 2 systems work regarding USERS PERMITS.

Are DESK USERS allowed to see and modify ALL information in CRM? (quotes, pricing, sales opportunities, etc.) Or they just see contact information (and previous tickets at DESK)? 

If they see and modify all information, is there a way to RESTRICT the actions DESK USERS can perform in CRM? 

Let me explain a bit better: The company have different "support agents" all arround the globe and we don´t want those agents to be able to access all the company information.