This article will teach you how to send new user invites to your colleagues
From the Settings > User Management:
and insert their Name and Email address:
The new user invites from the system itself. It might arrive to your spam/Junk folders.
It is important to open the URL while ad-blockers are disabled, in Incognito mode on Chrome browser in order to ensure the Login creation.
Once Login are created, enter the platform via: https://apps.adcore.com/