FIX Problems with Invite Codes not working

FYI guys, this plugin seems to be out of business. But if you urgently need to work with ist, these are steps that at least make it work temporarily:

1. DELETE ALL Codes after installing the plugin with the DELETE ALL Link. Deleting the one code that comes with the installation will not work ótherwise.

2. as mentioned by zanozik you need to correct the following to make your invite codes work, if they don’t (mainly upper/lowercase problems:

back-end.php:172
$code = sanitize_key( $code );
should be at least:
$code = strtoupper( sanitize_key( $code ) );

found here: Topic

Cheers Sascha

https://www.ads-software.com/plugins/baw-invitation-codes/