Converting Lead to custom object

Question

I'm working on creating a button on the lead object that will insert the fields into a custom object.

I can't get my trigger to work, and I'm not sure what I'm doing wrong. Here is the code for the button:

{!REQUIRESCRIPT("/soap/ajax/31.0/connection.js")}
{!REQUIRESCRIPT("/soap/ajax/31.0/apex.js")}
//Calling Class and Method
var result = sforce.apex.execute(
"LeadConversion",
"copyAppDetails",
{
LeadId : "{! Lead.Id }"
}
);
if(result=="Error")
{
window.alert("Copy Failed! Error has occurred");

}

else
{
window.alert(
'The Application details have been successfully copied to the Contact'
);

}

Here is my trigger:

global class LeadConversion{
    webService
    static String copyAppDetails(Id LeadId){
        List<Lead> lstLead =
            [
                SELECT 
                    Id, 
                    Name

                FROM 
                    Lead
                WHERE 
                    Id = :LeadId
            ];


       List <Application__c> lstApp = new List<Application__c>();

        for(Lead app : lstLead){

                    lstApp.add(
                        new Application__c(

                            Id = app.Id,
                            Name = app.Name

                        )
                    );
               }     
      try{   
            INSERT lstApp;
            return lstApp[0].Id; 
        }
        catch (Exception ex){

            return('Error');
        }     
}
}

Here is my error message when I click the button:

{faultcode:'soapenv:Client', faultstring:'System.TypeException: Invalid id value for this SObject type: 00Q7A00000259eJUAQ

Class.LeadConversion.copyAppDetails: line 22, column 1', }

score 2 · Accepted Answer · edited Apr 13 '17 at 12:54

The reason it's throwing that error is because the ID of one object type is not transferable into another type. You can read over this link to understand a bit more why, and what the ID's are composed of: What are Salesforce ID's composed of?

What I would suggest if you want to record the original ID of the Lead is to make a custom field called "Original Lead ID" or something similar, and then insert the ID into there. Salesforce will create an ID for the new custom object record itself.

Converting Lead to custom object

1 Answers1