It is possible to grant new invite codes to all users automatically.

You can only grant a specific amount of new invite codes on a set interval of time to all users regardless of user active invite codes, or any other setting.

Follow the next steps to properly use this feature.

1. First, go to ACP » User Groups » Edit User Group » Invite System » Maximum Active Invitations.
   
2. This setting allows you to set the amount of new invite codes to grant on a per group basis.
   
3. Then go to ACP » Board Settings » OUGC Invite System » OUGC Invite System.
   
4. This setting allows you to set the time interval between each new invite codes.
   
5. This setting allows you to set the amount of new invite codes to grant on a per group basis.
   
6. Finally, go to ACP » Task Manager » Edit Task » OUGC Invite System.
   
7. Make sure the task is enabled .
   

The task system has a limit of 50 users per execution so you might want to update the execution time based on the quantity of users your forum has.