I setup a portal server connected to Domino for ldap and did all the usual configuration.
I created a few test users in Domino and added their managers name into the Work section of their person doc. In the people finder portlet I searched for each user and viewed where the sat in the Organisational hierarchy. The portlet then drew the organisations tree structure as requested.
Later a colleague imported a lot of test users when he installed the ActiveInsight applcation. I could search for these users and view the results as before, however they did not appear in the organisation hierarchy. You could not see who managed which employee.
I tried reloading ldap and restarting the portal server to no effect.
I also a few person docs to clear out and reload the manager field details. This worked - the users appeared as direct reports of their manager.
However it turned out that after investigation and a lot of experimentation that i just needed to make an edit of each users person doc, not even to change anything - just to touch the doc. I found a quick way to do this was to slect all users and run the agent "Upgrade to More Secure Internet Password".
Now I can see the entire company hierarchy in people finder.
I could easily have wasted a lot of time on this.