Pre-requisites:
Role privilege as mentioned below, on the project in which roles history is to be viewed:
To view roles history, 'Manage Workspace Roles and Users' privilege assigned to your role.
Below are the steps to view roles history on a project:
1. In 'Projects' area, navigate to the project where roles history is to be viewed.
2. Right click on the required project and select 'Roles & Users' then select 'User Roles & Access'.
Alternately, in the thumb view, do a mouse hover on the project thumbnail and click on 
icon. A layered page opens. Click on 'User Roles & Access'.
3. Clicking on 'History' button in left hand menu, it shows historical records of all additions and modifications in all user roles on selected project.
4. Enter a keyword to search records in the search box and select keyword type from the 'Type' dropdown list.
5. Results show all historical records containing the keyword entered by user and related to proxy users.
Related Articles: Define User Roles and Access (on a Project), Role Privileges and their impact
Next Article: Assign Form Permissions (on a Project)