Retrieve element from an XML variable

Question

I have a BPEL process that takes in a XML message and from that message I want to parse out one element.
Using BPEL v10.1.3.3.0
Here is the xsd's, (use a wrapper for adding the name space)
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
targetNamespace="TempNamespace"
xmlns:nxsd="http://xmlns.oracle.com/pcbpel/nxsd"
nxsd:version="DTD">
<include schemaLocation="VendorMasterBridge_2_1.xsd"/>
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="VendorMasterBridge">
<xs:complexType>
<xs:sequence>
<xs:element name="VendorMaster" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="VendorNumber" minOccurs="1" type="xs:string"/>
<xs:element name="VendorName" minOccurs="0" type="xs:string"/>
<xs:element name="BatchCtrlNbr" minOccurs="0" type="xs:string"/>
<xs:element name="Error" minOccurs="0" type="xs:string"/>
<xs:element name="VendorMasterFields" minOccurs="0">
<xs:complexType>
<xs:sequence>
<xs:element name="DateCreated" minOccurs="0" type="xs:dateTime"/>
<xs:element name="Address1" minOccurs="0" type="xs:string"/>
<xs:element name="Address2" minOccurs="0" type="xs:string"/>
<xs:element name="PassReqdAutoCreate" minOccurs="0" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="id" use="optional" type="xs:string"/>
<xs:attribute name="version" use="optional" type="xs:string" default="2.1"/>
<xs:attribute name="timestamp" use="optional" type="xs:dateTime"/>
</xs:complexType>
</xs:element>
</xs:schema>
I use the Assign activity to try and get the Address1 field
<assign name="Assign_1">
<copy>
<from variable="Vendxml" part="VendorMasterBridge"
query="/ns3:VendorMasterBridge/VendorMaster/VendorMasterFields/Address1"/>
<to variable="addr"/>
</copy>
</assign>
When I deploy and run the BPEL process I get this error
<selectionFailure xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"><part name="summary"><summary>empty variable/expression result.
xpath variable/expression expression "/ns3:VendorMasterBridge/VendorMaster/VendorMasterFields/Address1" is empty at line 87, when attempting reading/copying it.
Please make sure the variable/expression result "/ns3:VendorMasterBridge/VendorMaster/VendorMasterFields/Address1" is not empty.
</summary>
</part></selectionFailure>
Here is the XML used for input
<invWriteVendor_Enqueue_InputVariable>
<part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="VendorMasterBridge">
<VendorMasterBridge xmlns:ns0="TempNamespace" id="RMS">
<VendorMaster xmlns="">
<VendorNumber>1077952523</VendorNumber>
<VendorName>UNIFLEX</VendorName>
<VendorMasterFields>
<Address1>383 W COMBO AVE</Address1>
<Address2>PO BOX 9004</Address2>
<City>HICKSVILLE</City>
<StateCode>NY</StateCode>
<Zip>11801-9004</Zip>
<Country>USA</Country>
<TelephoneNumber>05169322400</TelephoneNumber>
<StatusCode>00</StatusCode>
</VendorMasterFields>
</VendorMaster>
</VendorMasterBridge>
</part></invWriteVendor_Enqueue_InputVariable>
Can someone help me know what I am doing wrong?
If I do an assign of the input xml to another xml of the same message type all the fields transfer. I only run into this issue if I am trying to access a specific element.
Thanks for any help on this,

Answer 1

Thanks for the reply, but could you be a little more specific? Problem with the namespace where, in the incoming message? Is it defined wrong in the BPEL process? A mis-match somewhere?
I kind of figured it was a namespace issue but I can not seem to track it down.