Temporary Magento gist

soap-error.xml

<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope"
              xmlns:xml="http://www.w3.org/XML/1998/namespace"
          xmlns:m="http://magento.com">
 <env:Body>
  <env:Fault>
   <env:Code>
     <env:Value>env:Sender</env:Value>
   </env:Code>
   <env:Reason>
     <env:Text xml:lang="en">Invalid Quantity</env:Text>
   </env:Reason>
   <env:Detail>
      <m:ErrorDetails>
        <m:Parameters>
            <m:parameterA>product</m:parameterA>
            <m:parameterB>email</m:parameterB>
        </m:Parameters>
        <m:Code>3100</m:Code>
      </m:ErrorDetails>
    </env:Detail>
  </env:Fault>
 </env:Body>
</env:Envelope>