I want to get records of CRM but this not response when try to get information of Users table, this issue is provoke for permissions or not is possible to access at this information for security reasons or why?

1. 
   
2. varUsersList =  zoho.crm.getRecords("Users");
   
3. 
   

This return "null" when try to access at this information in applications in Zoho Creator.

Thanks for your time to help to explain why not access this data.