This plugin can force users to use a one time code during the registration process otherwise they won't be ble to proceed.
Also you can configure it so that after using a certain code the user will automatically be added inside a defined usergroup.
Download:
1.8.x
Invitation System
Submitted by Ombra, 19-04-2015, 10:21 PM, Thread ID: 3059
Thread Closed
![[Image: g7DifYm.gif]](https://i.imgur.com/g7DifYm.gif)