Assign Statement using EDI 850 XML Problem - No BPEL Process Instantion

Question

I am currently experiencing the following problem: I receive an EDI 850 message via AQ, and then when I try to copy one of the segments in the message
to a temporary variable, my BPEL process instantiation never shows up in the BPEL console display, nor does it error out anywhere where I can see.
Note: if I take out this assign activity, the BPEL process instantiation does show in the console, and does complete.
Can someone tell me where to look inside of the BPEL engine for any error information and perhaps explain why this situation happens in the first place. Also, if anyone can tell me if my syntax below for the extraction is correct, that would also be great.
Arthur (203-921-5925)
</schema>
<schema xmlns="http://www.w3.org/2001/XMLSchema" >
<import namespace="http://www.edifecs.com/xdata/100"
schemaLocation="850.xsd" />
</schema>
</types>
<message name="Header_msg">
<part name="Header" element="tns:Header"/>
</message>
<message name="Transaction-850_msg">
<part name="Transaction-850" element="imp1:Transaction-850"/>
</message>
<variable name="Variable_1" element="ns3:Segment-CTT"/>
<variable name="Receive_PO_Dequeue_InputVariable"
messageType="ns1:Transaction-850_msg"/>
<sequence name="main">
<receive name="Receive_PO" partnerLink="X12_4010_850_PO_DEQ"
portType="ns1:Dequeue_ptt" operation="Dequeue"
variable="Receive_PO_Dequeue_InputVariable" createInstance="yes"
bpelx:headerVariable="Variable_Receive_X12_4010_850_PO_Hdr"/>
<assign name="abc_test_assign">
<copy>
<from expression="bpws:getVariableData('Receive_PO_Dequeue_InputVariable',
'Transaction-850','/ns3:Transaction-850/ns3:Loop-CTT/ns3:Segment-CTT')"/>
<to variable="Variable_1"/>
</copy>
</assign>

Answer 1

Hi Arthur,
Please verify the namespace in the xml instance matches the xsd used in BPEL. In many cases, the data cannot be copied/transformed successfully if there is a mismatch in namespace.
Eng