SharePoint Permission Mode creates SharePoint groups that directly correspond to the default security groups found in Project Permission Mode. These default security groups include the following:

Administrator
Portfolio Managers
Portfolio Viewers
Project Managers
Resource Managers
Team Leads
Team Members

Users in these SharePoint groups have the same global and category permissions that are assigned to them in Project Permission Mode in Project Server 2013 For example, the Project Managers SharePoint group in SharePoint Permission Mode receive all allowed global and category permissions that the Project Managers default security group has in Project Server 2013 in Project Permission Mode.

Note:

In SharePoint Permission Mode, you cannot edit the default permissions assigned to any of these SharePoint groups. Also, you cannot create additional custom groups, categories, Resource Breakdown Structure (RBS) nodes, or edit the default permissions assigned to any of these objects. If you need more management of your user permissions in Project Server 2013, you can change to Project Permission Mode. For more information about the differences between the two security modes available to you in Project Server 2013, see Plan user access in Project Server 2013.

Permissions for SharePoint groups in Project Server 2013

There are two different types of permissions for Project Server 2013 users.

1. Global permissions: Allow users to use and access sites and features in Project Server 2013.
2. Category permissions: Allows users to do tasks with project, resources, and views in Project Server 2013.

Global permissions for SharePoint groups in SharePoint Permission Mode:

Category permissions for SharePoint groups in SharePoint Permission Mode