Nelu,
Typically invalid_grant means one of the information was not filled out
correctly (e.g., putting developer token in as the client secret, etc), or
that the refresh token is invalid, or that the original authorization URL
may have missed critical parameters, such as using offline access.
Hi all,
I have a problem trying to refresh the access token (OAuth2.0). I'm using
the googleads-php-lib and everything is fine with the authorization
process, request for tokens and I get access to the AdWords API.
The problem appears when I try to refresh the access token after about an
hour.
