Hello
I follow this article
http://dynamics365musings.com/setup-postman-to-call-d365-data-entities/
with video
After created token tab - I can get the token
but when use it in second tab i got
{
"Message": "Authentication failed.",
"StackTrace": null,
"ExceptionType": "System.InvalidOperationException"
}
In the token there are parm named Sccope I didn't use it , but with didn't use i got the token without problem

Token tab

I used this services by the demo console app that on the get hub and working fine ,but have this issue with postman
Thanks all