QbXML for Updating a Service Item
<?xml version="1.0" encoding="utf-8"?>
<?qbxml version="8.0"?>
<QBXML>
<QBXMLMsgsRq onError="stopOnError">
<ItemServiceModRq requestID="5195">
<ItemServiceMod >
<!-- required -->
<ListID>80000532-1393618765</ListID>
<!-- required -->
<EditSequence>1393618765</EditSequence>
<!-- required -->
<Name>BCP102A</Name>
<!-- optional -->
<SalesOrPurchaseMod>
<Desc>Install Isolation ValveAAAA</Desc>
<Price></Price>
<AccountRef>
<FullName>Ask My Accountant</FullName>
</AccountRef>
</SalesOrPurchaseMod>
<!-- END OR -->
</ItemServiceMod>
<!-- optional, may repeat -->
</ItemServiceModRq>
</QBXMLMsgsRq>
</QBXML>