Hi,
Hope your data protocol is JSON then follow below step while creating the RR pairs
in Request
MethodName /BasePath
ex. GET /maps/api/distancematrix/json?origins=pune&destinations=hyderabad
accept: application/json
content-Type: application/json
Connection: keep_Alive
User-Agent: LISA
If method is PUT or POST then after 1 blank space paste the JSON content
Response :-
HTTP/1.1 200
Response Body content
then try to virtualized it. It will work.
If you want to correct your current VSI then update the Operation name in VSI i.e. MethodName and BaseURL of your API and Deploy it. this should work.
Attached the sample RR pairs for reference.