USP_PREREGISTEREDPROGRAMEVENT_REGISTRANT_CANCEL

                create procedure dbo.USP_PREREGISTEREDPROGRAMEVENT_REGISTRANT_CANCEL
                    (
                        @ID uniqueidentifier,
                        @CHANGEAGENTID uniqueidentifier = null
                    )
                    as
                        set nocount on;

                        if @CHANGEAGENTID is null  
                            exec dbo.USP_CHANGEAGENT_GETORCREATECHANGEAGENT @CHANGEAGENTID output;

                        update dbo.REGISTRANT
                        set
                            ISCANCELLED = 1,
                            CHANGEDBYID = @CHANGEAGENTID,
                            DATECHANGED = getdate()
                        where REGISTRANT.ID = @ID;

                    return 0;