Test Complete project variable -test step to be passed to Rest Request test step

Hi, 

I integrated Testcomplete with ReadyAPI tool here i have piece of code which return an value. I need to pass  as input data to rest request

How can this be achieved?

Things i tried is by using property transfer but i am not getting how can i fetch the project suite variable in ready api and pass that value as input to Rest Request..\

Ready API Version is 3.45.0 and Test Complete Version is 15.53.2.7