[Heaven Knows]

Originally Posted by kh99

Try creating a plugin using hook location register_addmember_process, and do whatever checking you want on $vbulletin->GPC['userfield']['field5']. If it's bad, set an error like this;

$userdata->error("field5 must be unique");

or whatever message you want of course.

thanks for help, can you show me more details?
im newbie on this

regards