I follow this: https://developers.google.com/android-publisher/authorization
and I got my Refresh_Token and Access_Token,and then I use:
and
service account (403) Forbidden Google Play In-app Billing Purchase Status API
Invite my account email to be a user in google play publish page
but I still get the response an error 403 forbidden!
could someone help me?
I spent many days on this problem..