How many OBS Levels can be created? What is the OBS Level limitation?
Actually, there is no limit to the OBS breadth (number of nodes per unit/level), but it can only go 10 levels deep.
You can create a maximum of 10 OBS levels within the OBS structure and an unlimited number of OBS units in each OBS level. When you have more than one OBS level, you can select an existing OBS unit as a parent to create the child OBS units.
Reference the current Administration Guide for creating Organizational Breakdown Structure Units on https://wiki.ca.com