There was a customer topology which included the same OU name as shown in this simple example
Edit - June 14, Keith Hanna of MCS shared the customer issue, his profile is here on Next Hop - Keith Hanna
Ou = northamerica
Ou = sales
Ou = marketing
Ou = Europe
The question is how do I define the correct SALES OU I want the users created in. Turns out you can’t, the tool does a search and thus chooses the first OU matching that name. There are a few workarounds you could user here
One of our original thoughts on this was trying to define the OU using the Canonical name, that it didn’t work as you can see from this screen shot. The gold highlight shows the container object and then the property dialog, the red highlight shows the result of using that CN value in the StressConfig tool. Hey it was worth a try.