@danny-dainton Thanks for this information after making changes as you suggested I can see 2 iterations now with data in it.
Below are my 2 questions-
1)Suppose in these 2 iterations I clubbed/added 2 request bodies/objects for other POST method which is part of same collection then how i can iterate/traverse this JSON so that my 2 POST requests will get run using data from single file .
2)What will be script to achieve this?
My objective is to have 1 JSON file at collection level which holds request bodies for POST method.I want to run each request from collection twice.