LEAD CONVERSION

Question

Lead Conversion in Salesforce: Lead is Converted into Account and Contact,if we Want Opportuinty we can set , while Creating the Lead Record,Name Should be Converted to Contact,Company Should be Converted into Account

I Want Trigger Code:If name and Company what you are Giving in the Lead Record is Already Exists,lead should be Converted but Converted name and Company is Pointed out to the Existing Contact and Account Record,No New Contact and Account Should be Created

I Have Tried in So Many Ways, I am Not able to find out the Answer.

This is My tried Trigger Code:

trigger myfirstlead100 on Lead (after insert) 
{

      for(lead cf:trigger.new)
       {

            lead cd= new lead(id=cf.id);
            Database.LeadConvert lc = new database.LeadConvert();
            lc.setLeadId(cd.id);
            lc.setDoNotCreateOpportunity(true);
            Database.LeadConvertResult lcr = Database.convertLead(lc);
            System.assert(lcr.isSuccess());
            Profile pf = [Select id,name from Profile where name ='test' limit 1];
            Contact con = [select id,name,email,lastname,firstname,accountid from contact where id=:lcr.getcontactid()limit 1];


    }
}

Please Anyone Guide Me for the Answer

Answer 1

Here is code sample which will help you. Few points I write this code in console and didn't test so there might be few small bugs. Also if there is multiple match that case I didn't handle here.

trigger myfirstlead100 on Lead (after insert) 
{
    Set<String> cmpnyName = new Set<String>();
    Set<String> ledName = new Set<String>();

    map<string,Id> cmpnyAccMap = new map<string,Id>();
    map<string,Id> leadConMap = new map<string,Id>();
    for(lead cf:trigger.new)
    {
        cmpnyName.add(cf.Company);
        ledName.add(cf.name);
    }

    for(Account acc: [Select Id from Account Where Name IN: cmpnyName])
        cmpnyAccMap.put(acc.name, Acc.id);
    for(contact con: [Select Id from contact Where LastName IN: cmpnyName])
        leadConMap.put(con.LastName, con.id);

    for(lead cf:trigger.new)
    {
        lead cd= new lead(id=cf.id);
        Database.LeadConvert lc = new database.LeadConvert();
        lc.setLeadId(cd.id);
        if(cmpnyAccMap.containsKey(cf.Company))
            lc.setAccountId(cmpnyAccMap.get(cf.Company));
        if(leadConMap.containsKey(cf.name))
            lc.setContactId(leadConMap.get(cf.name));
        lc.setDoNotCreateOpportunity(true);
        Database.LeadConvertResult lcr = Database.convertLead(lc);
        System.assert(lcr.isSuccess());
    }
}