Permanent status in class is attained immediately upon completion of the last work period to which the employee was assigned to work during his or her probationary period regardless of whether it falls on or before the last day of the probationary period. Prior to the end of the probationary period, the appointing authority shall notify the employee in writing that the employee will attain permanent status in class. No employee may be denied permanent status in class after successfully completing a probationary period because an appointing authority fails to submit notice.
Wis. Admin. Code Department of Administration-Division of Personnel Management; Merit Recruitment § ER-MRS 13.09