Request:
POST https://quickbooks.api.intuit.com/v3/company/123146391838064/item?requestid=31f5d287-00f0-4a14-199f-060c56836d7f&minorversion=38 HTTP/1.1
Content-Type: application/xml
Authorization: OAuth realm="", oauth_signature_method="HMAC-SHA1", oauth_signature="bgfKTlfB5uZph5aLu55oc9np4xo%3D",  oauth_nonce="DurIi", oauth_timestamp="1563456978", oauth_token="lvprdreKFmAY3YKVdZumvAPEsQDbgwVymPcN4gS775ZYfzDR", oauth_consumer_key="qyprdZNHZbDxasBSSjQMBj0K3tPijz", oauth_version="1.0"
Content-Length: 1473

<Item xmlns="http://schema.intuit.com/finance/v3">
	<Id>34</Id>
	<MetaData xmlns="http://schema.intuit.com/finance/v3">
		<CreateTime>2019-04-04T14:40:02-07:00</CreateTime>
		<LastUpdatedTime>2019-07-10T18:56:18-07:00</LastUpdatedTime>
	</MetaData>
	<Name>20/20</Name>
	<Taxable>true</Taxable>
	<Active>true</Active>
	<UnitPrice>195</UnitPrice>
	<Type>Inventory</Type>
	<IncomeAccountRef>129</IncomeAccountRef>
	<PurchaseDesc>20/20 TORTOISE</PurchaseDesc>
	<PurchaseCost>13.8</PurchaseCost>
	<ExpenseAccountRef>36</ExpenseAccountRef>
	<AssetAccountRef>130</AssetAccountRef>
	<PrefVendorRef>16</PrefVendorRef>
	<QtyOnHand>498.000000</QtyOnHand>
	<SyncToken>6</SyncToken>
	<Sku>18MCPCS700</Sku>
	<Description>(This is the detailed description)</Description>
	<SubItem>true</SubItem>
	<ParentRef>46</ParentRef>
	<ParentRef_name>Sunglasses</ParentRef_name>
	<Level>1</Level>
	<FullyQualifiedName>Sunglasses:20/20</FullyQualifiedName>
	<IncomeAccountRef_name>Sales of Product Income</IncomeAccountRef_name>
	<ExpenseAccountRef_name>Cost of Goods Sold</ExpenseAccountRef_name>
	<AssetAccountRef_name>Inventory Asset-1</AssetAccountRef_name>
	<PrefVendorRef_name>Cheng Yi Optical Co., Ltd.</PrefVendorRef_name>
	<TrackQtyOnHand>true</TrackQtyOnHand>
	<InvStartDate>2019-07-18</InvStartDate>
	<TaxClassificationRef>EUC-09020802-V1-00120000</TaxClassificationRef>
	<TaxClassificationRef_name>Taxable Retail Items</TaxClassificationRef_name>
</Item>
Response:
HTTP/2 500
date: Thu, 18 Jul 2019 13:36:19 GMT
content-type: application/xml
content-length: 411
server: nginx
strict-transport-security: max-age=15552000
intuit_tid: 33c39541-9522-476c-8e35-a940484f9bb8
set-cookie: qboeuid=210788b1.58df4b1d6b087; path=/; expires=Fri, 17-Jul-20 13:36:18 GMT; domain=.intuit.com
x-xss-protection: 1; mode=block

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><IntuitResponse xmlns="http://schema.intuit.com/finance/v3" time="2019-07-18T06:36:18.732-07:00"><Fault type="SystemFault"><Error code="10000" element="SystemFailureError"><Message>An application error has occurred while processing your request</Message><Detail>System Failure Error: java.lang.NullPointerException</Detail></Error></Fault></IntuitResponse>