When you first create a Planning Org Chart, it's only visible to you.
Admins and Pro users can be invited to view, comment on, and edit your Org Chart. Adding Standard Users as collaborators gives them access to view and comment only.
Add collaborators to any org chart by selecting the Collaborators button in the upper right corner of the chart.
Note: The user who created the Planning Org Chart is the owner of the chart and the only one who can invite Collaborators.