Using A Transferred Parameter in a Test Step Request (REST)

Hi,

I appear to have successfully passed a parameter from Test Step1 to Test Step2 using the Property Transfer capability. However, I cannot figure out how to use the parameter in the request of Test Step2.

Here is how I set up the transfer:

Below is the Test Step receiving the parameter "planId":

I had assumed that since I passed the param from the CreatePID response to the UpdatePIDComment request (as per first screenshot), it would have appended the planId value to the UpdatePIDComment endpoint (i.e., http://localhost:8080/UpdatePIDComment?planId=whatever), but it is not working (when it doesn't work you see that "No PlanId passed to UpdatePIDComment. Doing nothing." as shown in the response window in UpdatePIDComment.

I can't figure out what to do, and I would be very grateful for any help. Thank you.