Conduct and performance are handled differently in terms of the corrective action process. You should always contact Employee & Labor Relations when there is any question about the appropriate corrective action process to follow.
Again, if you are addressing conduct issues with a probationary employee that has not resulted in overall improvement, you should consult with your manager and contact your Employee & Labor Relations representative about rejecting him/her during their probationary period.
Corrective Action and Disciplinary Action
Corrective action and disciplinary action are two terms that you will encounter in dealing with performance and conduct issues. Although corrective action may lead to discipline, they are not the same.