Hi,
This is siddharth, I want to know is there any possibility to provide non user access to my suitecrm with some privileges
What do you mean by non-user? if you give them a login to the crm with some access rights then they are by definition a user. But yes you can restrict user access by using Security groups and Roles. See here for more details: https://www.sugaroutfitters.com/addons/securitysuite