I try this code it's work.(now, I can add Name : TestCustomer3) And I want to add other data to Quickbook. Can you Help me about qbXML Language.
Example : I want to add "Company Name", "Full Name", "Bill To"
Example Code
string input = @"<?xml version=""1.0"" encoding=""utf-8""?>
<?qbxml version=""2.0""?>
<QBXML>
<QBXMLMsgsRq onError=""stopOnError"">
<CustomerAddRq requestID=""15"">
<CustomerAdd>
<Name>TestCustomer3</Name> <!-- required -->
</CustomerAdd>
</CustomerAddRq>
</QBXMLMsgsRq>
</QBXML>";