Hi,
For a MockResponse TestStep to work during a LoadTest with more than one thread you need to configure a Query/Match setup for the TestStep (in the corresponding tab under the request/response editors) that is needed internally by soapUI to decide which incoming request that should be routed to which thread - for example if you have some unique identifier from the datasource that is present in the incoming request, set an XPath which selects it from the request and a property-expansion which selects the value from the DataSource - in that way soapUI will be able to associate these correctly.
Hope this helps!
/Ole
SmartBear Software
