Once Content Store for ArcGIS has been added into an organization's account, and user(s) have been allowed access (see the preceding two articles), those user(s) will be able to access the Content Store for ArcGIS.
In this example, Marc_SkyWatch has been added to the Content Store for ArcGIS Users group by the org admin.
Once Marc_SkyWatch logs into their account, they will receive a notification they have been added to a new group.
Clicking that hyperlink, they will be taken to that group where they can see the content that has been permissioned to them.
Clicking on 'Content Store for ArcGIS' will bring the user to the item.
From there, selecting 'View' will bring the user to the Content Store for ArcGIS application where they can login using their ArcGIS credentials.