Can not get property transfer to work

Hi All,

  I have set up a test suite that uses a Post followed by a Get.  The post response is json containing an id number, I want the property transfer step between the post and get steps to pass the id, but it always says that it is passing "null".

I have it set up as follows :

When I look at the window for step one, the create,  I can see a value for the parameter "changeNumber", however, in the property transfer step, it says it is passing null.

Any advice on what I might check to see what I am doing wrong would be greatly appreciated,

Thanks,

Kim K