Record

class Program
    {
        static void Main(string[] args)
        {
            String RecordType = "Vacancy";

            Record softwareEngineerVacancy = new Record("SoftwareEngineer0001", RecordType);
            Record frontEndEngineerVacancy = new Record("FrontEndEngineer0020", RecordType);

            NotifyManager.Notify += DisplayMessage;
            NotifyManager.SubmitForApproval(softwareEngineerVacancy.Id);
            NotifyManager.Approve(softwareEngineerVacancy.Id);
            NotifyManager.SubmitForApproval(frontEndEngineerVacancy.Id);
            NotifyManager.Reject(frontEndEngineerVacancy.Id);
        }

        private static void DisplayMessage(string message)
        {
            Console.WriteLine(message);
        }

        public class NotifyManager {
            public delegate void NotifyManagerHandler(string message);
            public static event NotifyManagerHandler Notify;

            public static void SubmitForApproval(string id)
            {
                Notify?.Invoke($"Submitted for approval Vacancy: {id}");
            }

            public static void Approve(string id)
            {
                Notify?.Invoke($"Approved Record: {id}");
            }

            public static void Reject(string id)
            {
                Notify?.Invoke($"Reject Record: {id}");
            }

        }

        public class Record
        {
            public String Id { get; private set; }
            public String Type { get; private set; }

            public Record(String Id, String Type)
            {
                this.Id = Id;
                this.Type = Type;
            }
        }
    }