trigger createopp on Call_List__c (after update)
{
List<opportunity> opps=new List<opportunity>();
Set<String> callIds = new Set<String>();
for(Call_List__c ca:Trigger.New)
{
// after update
if(Trigger.IsUpdate && ca.Qualified_status__c!=Trigger.oldMap.get(ca.Id).Qualified_status__c && ca.Qualified_status__c=='converted'&&ca.Converted_to_Opportunity__c==false)
{
opportunity o=new Opportunity();

O.Name=ca.Account__c - ca.;
o.Accountid = ca.Account__c;
o.Product_Id__c=ca.Product__c;
o.StageName = 'Open';

o.CloseDate= Date.Today();
o.LeadSource = 'Abandon List';
o.Secondary_User__c = ca.Ownerid;
//QueueSobject que = [Select Id, Queue.Id From QueueSobject Where Queue.DeveloperName='calllist_queue' Limit 1];
o.Ownerid = ca.Sales_User__c;
o.Converted_to_Opportunity__c=true;
callIds.add(ca.Id);
opps.add(o);

system.debug('opportunity is '+o);

}
//update ca;
}
List<Call_List__c> callLists = new List<Call_List__c>();
for(Call_List__c call : [select Converted_to_Opportunity__c from Call_List__c where Id in :callIds])
{
call.Converted_to_Opportunity__c = true;
callLists.add(call);
}

if(callLists.size() > 0)
{
update callLists;
}

if(!opps.IsEmpty())
{
system.debug('********entered if');
try
{
insert opps;

}
catch(Exception e)
{
system.debug('******exception thrown'+e);
}
}
}