PI 7.11: Prefix for attribute is bound

Hi everybody,

This is my scenario: ABAP proxy -> PI -> SOAP

It's a synchronous web service call.

The SOAP call reaches the 3rd party system, but the response causes an issue in PI.

In the WSDL the response is defined like that:

<xsd:complexType name="Response">

    <xsd:sequence>

        <xsd:element name="errmsg" type="xsd:string"/>

        <xsd:element name="return" type="xsd:short"/>

    </xsd:sequence>

</xsd:complexType>

But the web service is sending me the following response:

<NS1:Response xmlns:NS1='urn:SapCrew2AimsIntf-ISapCrew2Aims'>

     <return xsi:type='xsd:short'>0</return>

     <errmsg xsi:type='xsd:string'/>

</NS1:Response>

This leads to the following error in PI:

The prefix "xsi" for attribute "xsi:type" associated with an element type "return" is not bound.

So PI expects "xsd:type" instead of "xsi:type", right?

How can I now solve that issue?

Can I somehow modify the WSDL, so that 'xsi:type' is also accepted?

I've tried to add

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

to the WSDL (in <xsd:schema> </xsd:schema> section), but it doesn't work.

Another solution would be to change the web service, but as it comes from a 3rd party that's not the preferred solution.

Thanks in advance!