Hi
I written one Schedular class : assinging task to system admin
When user will create one client requirement record automatically one task is creating.if he is not completed with in 1 day am assining these task to system admin.

user is created one task he is not completed with in 1 day its assining to system admin.when system admin completed the task and he changed task status to complteds fine it,but in  next day when schedular class run the task status is changing again Not started .

Can any one tell me what is the wrong in my code

Thanks for your help

This is my code


global with sharing class Task_Esc_duedate_users_to_crm_user implements Schedulable
{
public List<Client_Requirement__c> clientreq=new list<Client_Requirement__c>();

public list<task> listtask=new List<task>();

map<id,task> listtask21=new map<id,task>();

public set<id> CRID=new set<id>();

global void execute(SchedulableContext SC) {


try
{
map<Id, User> Id2User = new map<Id, User>([SELECT Id, Name FROM User WHERE Profile.Name IN ('East','Howrah','North and Central','Rajarhat','South I','South II','Newtown')]);
map<Id, User> crmusernewid =new map<Id, User>([SELECT Id, Name FROM User WHERE Asst_crm_user__c=true and Profile.Name IN ('System Admin')]);
system.debug('asst crm user id'+crmusernewid);
clientreq=[select id,name,RecordTypeid,Ownerid  from Client_Requirement__c];
system.debug('List of all  client requirement'+clientreq);
for(Client_Requirement__c cr: clientreq)
{
CRID.add(cr.id);// fetching the list of all client req IDS
}

listtask=[Select t.CreatedDate, t.Id, t.LastModifiedById, t.LastModifiedDate, t.OwnerId, t.Priority,
t.Status, t.Subject, t.WhatId, t.WhoId,t.ActivityDate,t.Due_Date__c from Task t where Whatid=:CRID and Status='Not Started'  and  ActivityDate=YESTERDAY AND OwnerID IN :ID2User.keyset()];
system.debug('List of tasks that are not closed with in due date of all users '+listtask);


for(task t: listtask)
{
for(user crm:crmusernewid.values())
{

t.OwnerId=(crm.id);// Assigning the crm owner to the all the tasks

listtask21.put(t.id,t);
}
}

update listtask21.values(); //updating the tasks
system.debug('@@@@ List of tasks that are updated to user crm head '+listtask21);
}
catch(Exception e){system.debug('@@@@@@@@@@@@@@'+e);}
}
}


Regards
venkatesh