The Project Roles tab display displays all of the project roles that exists in your instance. This includes both the native and custom project roles.
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Project Role ID: Displays the ID for each Project Role.
Project Role Name: Displays the name of each Project Role.
Details Area
Users in Project Role: A list of users that belong to the Project Role.
Groups in Project Role: A list of groups that belong to the Project Role.
Description: Displays the description of the project role if one exists. Otherwise, it displays a default message.