Extract parts of response and use in other test step.

Its pretty easy. You dont have to write any code.
Lets say, that example you gave, is teststep1.
Now, in your teststep2, click on the field where you want your data to do, Get Data ->Teststep1 ->response > your value.
something like this:
${teststep1 - Request 1#Response#/StateHeader/SessionsId}

Great! Thats just what im looking for.
But i cant get it to work, at least on my response.

Here is the complete response:


 

     
        16cf4754-a628-4ef4-8fad-ce60b28ffdde
     
 

 
     
       
            998800
            380560593
            NISSE 3805605
            1417818155
            TESTMAN
           
              0
             
           
            380560593
       
     
 


What i want to extrac it SessionId. Anyone who can help me?

Thanks!

Did you remember to include the namespace prefix (s:SessionId) ?

Yes,  have tried several combinations.

For example:
${GetCustomerSession - Request 1#Response#//* - This one returns the whole response.
${GetCustomerSession - Request 1#Response#//s:Envelope/s:Header/*} - returns the headerpart.
${GetCustomerSession - Request 1#Response#//s:Envelope/s:Header/s:Stateheader/*} - Nothing
${GetCustomerSession - Request 1#Response#//s:Envelope/s:Header/Stateheader/*} - Nothing
${GetCustomerSession - Request 1#Response#//s:Envelope/s:Header/s:SessionId} - Nothing
${GetCustomerSession - Request 1#Response#//s:Envelope/s:Header/SessionId} - Nothing

Can it be the namespace in a namespace that could be the problem?

It could be a namespace issue, since the way you have defined the namespaces in the response means that StateHeader will have an unknown namespace when it is encountered. try either specifying the namespace explicitly in the response, or if you do not have access to the response, specifying it explicitly in the xpath.