I have referenced new OSR and try to add Invoice to quick book online essential account but not getting succeeded. Please note that I have added correct list id in XML for product and customer.But It will respond me below XML,
<?xml version="1.0" ?>
<?qbxml version="6.0"?>
<QBXML>
<SignonMsgsRq>
<SignonTicketRq>
<ClientDateTime>2013-10-10T07:42:51</ClientDateTime>
<SessionTicket>********</SessionTicket>
<Language>English</Language>
<AppID>**********</AppID>
<AppVer>1</AppVer>
</SignonTicketRq>
</SignonMsgsRq>
<QBXMLMsgsRq onError="stopOnError">
<InvoiceAddRq requestID="2">
<InvoiceAdd>
<CustomerRef>
<ListID>15</ListID>
<FullName>vivek patel</FullName>
</CustomerRef>
<TxnDate>2010-10-10</TxnDate>
<RefNumber>1234</RefNumber>
<BillAddress>
<Addr1>Baroda</Addr1>
<City>Baroda</City>
<State>AL</State>
<PostalCode>123456789</PostalCode>
<Country>US</Country>
</BillAddress>
<PONumber></PONumber>
<Memo></Memo>
<InvoiceLineAdd>
<ItemRef>
<ListID>8</ListID>
<FullName>Test Service</FullName>
</ItemRef>
<Desc>Test Service</Desc>
<Quantity>1</Quantity>
<Rate>20</Rate>
</InvoiceLineAdd>
</InvoiceAdd>
</InvoiceAddRq>
</QBXMLMsgsRq>
</QBXML>HTTP/1.1 100 Continue
HTTP/1.1 100 Continue
HTTP/1.1 200 OK
Date: Thu, 10 Oct 2013 13:05:05 GMT
Server: Apache/1.3.41 (Unix) mod_ssl/2.8.31 OpenSSL/0.9.8r ApacheJServ/1.1.2
Content-Type: text/plain
Transfer-Encoding: chunked
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<!DOCTYPE QBXML PUBLIC "-//INTUIT//DTD QBXML QBO 6.0//EN" "http://apps.quickbooks.com/dtds/qbxmlops60.dtd">
<QBXML>
<SignonMsgsRs>
<SignonTicketRs statusCode="0" statusSeverity="INFO">
<ServerDateTime>2013-10-10T13:05:07</ServerDateTime>
<SessionTicket>*********</SessionTicket>
</SignonTicketRs>
</SignonMsgsRs>
<QBXMLMsgsRs>
<InvoiceAddRs requestID="2" statusCode="530" statusMessage="A field that is not supported was included in the request. The remainder of the request was processed normally, but the unsupported field was ignored." statusSeverity="Warning">
<InvoiceRet>
<TxnID>15</TxnID>
<TimeCreated>2013-10-10T06:05:06</TimeCreated>
<TimeModified>2013-10-10T06:05:06</TimeModified>
<EditSequence>0</EditSequence>
<TxnNumber>15</TxnNumber>
<CustomerRef>
<ListID>15</ListID>
<FullName>vivek patel</FullName>
</CustomerRef>
<ARAccountRef>
<ListID>54</ListID>
<FullName>Accounts Receivable (A/R)</FullName>
</ARAccountRef>
<TxnDate>2010-10-10</TxnDate>
<RefNumber>1234</RefNumber>
<BillAddress>
<Addr1>Baroda</Addr1>
<City>Baroda</City>
<State>AL</State>
<PostalCode>123456789</PostalCode>
<Country>US</Country>
</BillAddress>
<ShipAddress>
<Addr1>Baroda</Addr1>
<Addr2>Baroda2</Addr2>
<City>Baroda3</City>
<State>AL</State>
<PostalCode>123456789</PostalCode>
<Country>US</Country>
</ShipAddress>
<DueDate>2010-11-09</DueDate>
<Subtotal>20.00</Subtotal>
<SalesTaxPercentage>0</SalesTaxPercentage>
<AppliedAmount>0.00</AppliedAmount>
<BalanceRemaining>20.00</BalanceRemaining>
<IsPaid>false</IsPaid>
<IsToBePrinted>false</IsToBePrinted>
<InvoiceLineRet>
<TxnLineID>1</TxnLineID>
<ItemRef>
<ListID>8</ListID>
<FullName>Test Service vivek</FullName>
</ItemRef>
<Desc>Test Service vivek</Desc>
<Quantity>1</Quantity>
<Rate>20</Rate>
<Amount>20.00</Amount>
<IsTaxable>false</IsTaxable>
</InvoiceLineRet>
</InvoiceRet>
</InvoiceAddRs>
</QBXMLMsgsRs>
</QBXML>