In Apprentix, users are managed in the People section.
This is the process for adding users after you’ve gone through the guided setup process.
From the Manage Portal
Go to People
Under Team Members, Go to Bulk Actions
Click on Import Users and follow the instructions
To add a user without assigning a role
Under Team Members, Go to Add Member
Go to Role, select Unassigned
Fill out the other fields
Note: All users even unassigned ones get an email invitation to set up their account.
Related: How to add People