Missing namespace in SOAP

Hi Team,

Can you please assist me here. I am trying to understand why the namespace is missing in the outbound soap request. There are 2 XSDs attached to the WSDL, 1st XSD has the same namespace as IO and one IC/ICF(Product), but the 2nd XSD has the definition of sailingEvents.  This namespace is missing in the SOAP request.

I tried Deploying the IO.

IO userproperty:

NoNamespaceOnIC =  true

</product>

<product xmlns="http://www.test.com/ns/EnterpriseComponents/Booking/Common/testService/V1">

<productId>CH</productId>

<productNumber>1</productNumber>

<productCategory>PASSENGER</productCategory>

</product>

</products>

<sailingEvent>

<departurePortCode xmlns="MISSING NAMESPACE">NAN</departurePortCode>

<arrivalPortCode>HSB</arrivalPortCode>