The User Limits option allows Silo Administrators to set hard limits on the number of user accounts that may be added in the primary org, as well as sub-orgs.. This option lets Administrators control how many users sub-admins may set for their orgs and makes it less likely to go over the contracted user count.
1. From the admin console, navigate to the highest level org you would like to control. Press the Policy Panel button, click the down arrow by Advanced, and select User Limits Edit.\
Once you have completed configuring your orgs, you may go to the top level org and view the status of all of the User Limits:
Please contact Support if you have any additional questions and/or require further information.