What to expect when the named users => max.named.users ?

Hi   In the metrics of our app I see that the named users are reaching -at peak timess- our max named users of 100 named users. 1 - So I am wondering what i should expect when the named users reached 100 (system notifications)? 2 - And what will/could happen when someone tries to make the 101st account (will the app crash, any other possible effects for the 100 concurring users)? 3 - Best practices to capture those peak times?    
1 answers

Named users refers to the number of users registered in the app, not the number of concurrent users using the system.

If you reach your max number of named registed users you will not be able to create any new users. Existing users will be able to use the systems as expected.