<inSequence>
    <validate source="$body/reg:RegistrationServiceRequest">
         <on-fail>
                <sequence key="registrationFaultSequence"/>
         </on-fail>
         <schema key="gov:com/testcompany/RegistrationWrapperAttributeTypes.xsd"/>
         <schema key="gov:com/testcompany/RegularRegistrationWrapperTypes.xsd"/>
    </validate>
    .....
</inSequence>

<log level="custom">
   <property name="MESSAGE" expression="get-property('ERROR_MESSAGE')"/>
</log>

<validate cache-schema="true" description="ValidateCustomerRequest" source="//Customer:Customer" xmlns:Customer="some namespace" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <schema key="gov:custom/Customer.xsd"/>
    <resource key="gov:custom/Customer.xsd" location="Customer.xsd"/>
    <on-fail>
        <makefault version="soap11">
            <code value="soap11Env:VersionMismatch" xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/"/>
            <reason value="Request is Invalid"/>
        </makefault>
    </on-fail>
</validate>