How to save webservice result workflow as custom path?

Hello,

i’m using the web service task :

and i saved to 2 fields from the results a custom path:

And then i want to create a new case on ServiceNow:

But the case created on ServiceNow has empty fields for the custom path values i saved on the Webservice .

Did i saved the values correctly?is it possible to use the fields for other task in the workflow?