Depend on you system type you will create accounts in the system. Those accounts can represent two types of assets in the system:
You add a user to a system by providing a name and email address. An email is optional.
When object is created you will be able to see it on a list with special generated code. This code will be used in a mobile application.
If you invited user instead of creating object a user will receive an invitation emaila:
This code is important. When you work with object you use this code with an external apps that will require this to work. We will focus here on invited users. When user receive the code he can download a mobile application called "trc.to"
He simply use this code to enter the system