Team usage is the display of cost or usage data at the team level and for individual roles and resources assigned to a project. You can view this data in a graphical (histogram) or numeric (spreadsheet) timescale. This page uses published data.
You can choose to view rolled up values for assignments in projects you do not have permission to access. This option does not give you access to those projects or any of their data. Instead it provides totals for the units and costs each resource contributes to those other projects.