Hi guys,
New learner for F&O API, currently I'm setting up Postman for my Custom Service testing and need help for clarification:
1. I have succeeded to GetAccessToken in Postman, something like this:

2. Now as I'm creating new Request for my testing it self, I confuse on how to put the "Bearer token" that required because it looks like it doesn't recognized my variable ->

The blog that I'm following is told me to set environment variable in that GetAccessToken (in Test section), with this command:
var jsonData = JSON.parse(responseBody)
postman.setEnvironmentVariable("bearer_token", jsonData.access_token)
But actually, when I type the 2nd statement "postman." it didn't give me options for "SetEnvironmentVariable", so I manually type it. Then run this request again (hit button "Send")
But as the point no 2 said, the "bearer_token" still unrecognized. There is a button in the pop up window to "Add new variable" but still hesitate to try it, since in that blog never mentioned that.
Anyone can help where I did some mistake or missed ?
Thanks