I was able to get the authorization and access token but when I tried to make call to the contacts it's giving me an Unauthorized 401 Error. One thing I notice is that when I receive the access_token it is not encoded. I have a sample app that is working and when it requests the access_token it's getting the encoded one. I tried encoding the access_token that I got before I make the call to the contacts but it doesn't work. Please let me know what I'm doing wrong why I'm getting this? Thanks.