JavaScript button to call the Apex method is not working

Question

I have an existing JavaScript button that calls Apex, and it works fine. I then want to add a second parameter to the method, but for some reason it isn't working. Is there something else I need to do?

The code below works:

{!REQUIRESCRIPT("/soap/ajax/19.0/connection.js")} 
{!REQUIRESCRIPT("/soap/ajax/15.0/apex.js")} 

var response = sforce.apex.execute("IFE/IFE_ButtonMethods", "createIQuoteCall", {oppID:"{!Opportunity.Id}"});

The Apex method that goes with it:

webservice static string createIQuoteCall(String oppID)
{

This following does not work:

{!REQUIRESCRIPT("/soap/ajax/19.0/connection.js")} 
{!REQUIRESCRIPT("/soap/ajax/15.0/apex.js")} 

var response = sforce.apex.execute("IFE/IFE_ButtonMethods", "createIQuoteAcc", {oppID:"{!Opportunity.Id}"}, {accId:"{!Opportunity.AccountId}"}); 

The Apex method that goes with it:

webservice static string createIQuoteAcc(String oppID, String accId)
{

The error I get is:

onSuccess not defined in the callback.

What am I doing wrong?

Answer 1

Your syntax is wrong. You should collect all parameters within one {...} block:

sforce.apex.execute("IFE/IFE_ButtonMethods", 
                    "createIQuoteAcc",  
                    {oppID:"{!Opportunity.Id}", accId:"{!Opportunity.AccountId}"});