Orchestration exception:Exception occurred when persisting state to the database because of special character ' ' in HL7 message.

Question

In some scenarios HL7 message is coming with special character ‘’ and HL7 dis-assembler escaping this character with “”. But while sending out (pass thru pipeline but orchestration trying to persist here at last sendshape.) from orchestration
this message failing with the error “Exception occurred when persisting state to the database.”
As per the analysis , Orchestration is unable to convert to xml document from a
XLANGMessage because of this special character. We have tried to call custom .net class with following code and its failing here as well (I think orchestration also trying to do same way and failing with the message and failing with same error.).
public void ProcessRequest(XLANGMessage reqMessage)
XmlDocument xmlDocument = (XmlDocument)reqMessage[0].RetrieveAs(typeof(XmlDocument)); It is failing here with the error
“ ', hexadecimal value 0x10, is an invalid character. Line 1, position 1865. “
Note : Please find the special character in the attachment circled in red color. 

Answer 1

Hi ,
Please find the xml and the screenshot.
<OBX_ObservationResult>
  <OBX_1_SetIdObx>3</OBX_1_SetIdObx>
  <OBX_2_ValueType>TX</OBX_2_ValueType>
  <OBX_3_ObservationIdentifier>
    <CE_0_Identifier>P.112</CE_0_Identifier>
    <CE_1_Text>Where pt. will be transported to \T\ where &#x10;&#x1;famly can wait:</CE_1_Text>
  </OBX_3_ObservationIdentifier>
  <OBX_4_ObservationSubId />
  <OBX_5_ObservationValue>Y</OBX_5_ObservationValue>
  <OBX_6_Units>
    <CE_0_Identifier />
  </OBX_6_Units>
  <OBX_7_ReferencesRange />
  <OBX_8_AbnormalFlags />
  <OBX_9_Probability />
  <OBX_10_NatureOfAbnormalTest />
  <OBX_11_ObservationResultStatus>N</OBX_11_ObservationResultStatus>
</OBX_ObservationResult>