Update Customer Custom field QuickBooks Desktop - desktop

Question

I am using consolibyte lib to integrate QuickBook Desktop with PHP app.
I need to update customer's custom field using PHP library.

Answer 1

Custom fields are called DataExt elements in QuickBooks desktop.
You can refer to the QuickBooks OSR for exact XML syntax on what to send to QuickBooks:
https://developer-static.intuit.com/qbSDK-current/Common/newOSR/index.html
We also have lots of examples on our website of doing what you're trying to do:
http://www.consolibyte.com/docs/index.php/Example_qbXML_Requests
Specifically, this example may be helpful:
http://www.consolibyte.com/docs/index.php/QbXML_for_Adding_a_Customer_with_Custom_Fields
Copy/pasted from that link:
<?xml version="1.0" encoding="utf-8"?>
<?qbxml version="7.0"?>
<QBXML>
<QBXMLMsgsRq onError="stopOnError">
<CustomerAddRq requestID="Q3VzdG9tZXJBZGR8MTExMTIxMjE=">
<CustomerAdd>
<Name>Keith Palmer Jr.</Name>
...
</CustomerAdd>
</CustomerAddRq>
<DataExtModRq>
<DataExtMod>
<OwnerID>0</OwnerID>
<DataExtName>CustomerNumber</DataExtName>
<ListDataExtType>Customer</ListDataExtType>
<ListObjRef>
<FullName>Keith Palmer Jr.</FullName>
</ListObjRef>
<DataExtValue>1234</DataExtValue>
</DataExtMod>
</DataExtModRq>
</QBXMLMsgsRq>
</QBXML>
You should be able to plop XML like that in to the examples included in the quick-start guide of this PHP library and be on your way.
https://github.com/consolibyte/quickbooks-php
If you have trouble, you should post the XML you're sending to QuickBooks, and the error message or XML that you get back from QuickBooks. Code is helpful too.