A user can log in.
An Employee can't.
You can link an Employee to a User.
When you sell a billable product, employees can bill against it. If you trust the two users will accurately enter time on behalf of other employees then you don't need additional users. Employees can't log in so can't see documents, verify timesheets, etc.
In many systems, the admin (also called the root user, the person with the maximum access right) is not considered as a real user (it's just used for configurations, tests,... but not for daily operations),
With Odoo you don't need a dedicated admin / root user, it can be any normal user with high access right that can then become a "super user" through debug mode.
You should NOT think of this User license as being able to be used by employees. It is meant for troubleshooting and other System Administration tasks only.
See also https://www.odoo.com/forum/help-1/how-do-i-log-in-as-superuser-196892
Hi
Thanks, so users are the actually billable number.... so if i only have 2-3 admin staff, i likely would buy 2 users (first admin is free, then the next 2 are paid), if i then add 10 staff, will the 10 staff be able to interact with the a timesheet system to log in and out of the timesheets, it appears tough they have to log in to use that time sheet system or is it possible to have an attendance system on the web front end they select there employee number to attend via this number so they dont need to actually sign in and out of the main admin system?
ADMIN should not be used except in emergencies to troubleshoot - sorry for the confusion - I have updated my answer.