Only return one parameter from SOAP operation

i've created a workflow from a WSDL file, and it works without issues. But the output is type: property and i only want to return a string containing one parameter from the response.

I've tried using the getOutParameter() function, and it seems to work inside the workflow, i can pass the string to a logaction in the workflow and it gets logged, but when i use it in an existing workflow the variable isn't passed on to next action/workflow.

I have mapped the output from the script to an output parameter in the workflow, and then mapped the workflow output to an out- attribute in the hosting workflow.

I would want to build a string from the SOAP parameter and other input parameters in the workflow,and then use those values later in the workflow, how would such a script look?

Anyone got any ideas?

br

Andreas