How to map xsd restrictions and constraints to customized user messages

Hi,

I’m testing this wsdl attributes to control some fields :

<xsd:simpleType name="montantPrelevement">
     <xsd:restriction base="xsd:double">
     <xsd:minExclusive value="0.0"/>
     </xsd:restriction>
</xsd:simpleType>

and if I test the associated web service with a wrong value (-5), I obtain this normal message :

<detail>
            <webM:exception xmlns:webM="http://www.webMethods.com/2001/10/soap/encoding">
               <webM:className>com.wm.app.b2b.server.ServiceException</webM:className>
               <webM:message xml:lang="">[ISC.0049.9005] Input validation for service 'mifMetier.synchrone.work.sunshine:createPrelevementImmediat' failed: '/prelevementImmediat/montantPrelevement DT-009 [ISC.0082.9492] Value is less than or equal to minExclusive'</webM:message>
            </webM:exception>
         </detail>

Is this any way to map this error with a customized error (like below), to avoid these technical informations shared to third party ?

<error>
   <code>1</code>
   <msg>The prelevementImmediat/montantPrelevement value is incorrect (positive numeric value required)</msg>
</error>

Maybe the Content Type can be me mapped to user messages somewhere in WebMethods ?

Regards